10 Meter Attic Antenna

Get a strong, clear signal with less noise from 2 meters through 40 meters with your choice of single- and multi-band Yagi antennas with up to 16 elements. Build a 10 or 20 metre Yagi antenna in your attic Building an effective HF antenna can be difficult when space is limited, building a beam antenna may appear impossible if you don't have enough room to house the directors and reflectors required by these beam antennas. A groundplane type antenna is basically the same thing, just a different form. That is the receiver’s internal noise. The antenna receives all signals within 37 miles in the UHF & VHF band. Returning back to Ham radio after a 40 year hiatus. 5:1 on either band with 440 being slightly better. The product is durable as it is powder-coated to last long, for over 20 years. (1,285 Reviews) (2,788 Reviews) (9,328 Reviews) (7,820 Reviews). To keep my ERP at a QRP level, I use the following simple wire antennas: An end-fed approximately 110' long random wire antenna, most of which is in my attic with a short extension into my tiny back yard, a 20 meter (flat top) inverted vee in my attic, a vertical 15 meter dipole on the side of my house, and a sloping 10 meter dipole on my porch. An Attic Coaxial-Cable trap dipole for 10, 15, 20, 30, 40, and 80 meters The 40 meter Stealth Vertical Vertical antenna for 40 meters band Stealth Multiband Vertical A vertical antenna for 40 and 80 meters band, using a telescoping fiberglass fishing pole. Mobile Antennas. The loop is rigid enough to maintain its shape but flexible for portable transport or attic installation. I have a Cushcraft R7000 up, which is a half wave trapped antenna, but no radials. More Antenna Classics - C. MCR COMMUNICATIONS G5RV DOUBLE SIZE TOP BAND 160 METERS to 10 full Size Superior Poly Weave Wire Antenna This G5RV Double-Size HF Wire Antenna is an HF Amateur Band, Receive and Transmit Antenna, covering 160m to 10m bands. The all-band doublet antenna is nothing more than a 1/2. That 80 meter antenna is a royal PITA to get indoors. post 21 Apr 2020. Home-Made Magnetic Loop Antenna for 30 Meters. TBJ-1 (ham) triband base antenna (144-148 MHz, 222-225MHz, 440-450 MHz) Maximum power 75 watt $64 (comes complete with pvc pipe) featured in March QST 2017 US patent 9,608,336 (postage $10-15 - depending on location from California). This horizontal “slot” antenna, cut into the reflector of a TV dish, is both the master of disguise and high in performance. Simulation is a great tool for the attic antenna farmer because it will help you to understand what will NOT work. ) The 10 meter wire, approx 8 ft. Depending on the specific model you go after, you can expect anywhere from 50 to 70 miles of reception in optimal conditions. W6HDG FAN DIPOLE ON A FENCE! A quick and easy hf multibander! THE MAYPOLE ANTENNA. Repeater Stations (all bands): an evaluation is required for building-mounted antennas where power exceeds 500 watts ERP, and for non-building-mounted antennas if height above ground to the lowest point of the antenna is less than 10 meters and the power exceeds 500 watts ERP. The wire portion between the matchbox and the coil. MFJ Mini Antennas in the attic. ARRL Antenna Compendium. When I put the ohm meter across the antenna feed (LMR-400 coax) I was getting 12 mega ohms. Funkamateur Magazine 1990-2011. As you see, the antenna is a sloping, center-fed, doublet. But, I found very few antennas out there that met the one key requirement for ALE a resonant vertical with coverage of the 80-40-20-30-20-15-12-10 meter ham bands, without need for a tuner. I modeled several configurations and found that a simple perimeter wire running around the attic provides more than enough capacitance to resonate the 30 ft wire at 3. Most of them can tune to 10 meter as well. About these results 1) Test method Each antenna was tested in the same location and the results were recorded using a Winegard signal strength meter. net Abstract A coaxial-cable trap dipole antenna installed in the attic provides a surprisingly effective solution to HF operation on the 10, 15, 20, 30, 40, and 80 meter amateur bands at a QTH with restrictive covenants that prohibit outside antennas. Amatuer Ham Radio Antennas Also Great For Limited Spaces. It utilizes a 9:1 UNUN transformer in order to bring the impedance of the antenna to more manageable values for your antenna tuner. 5th question: I have 10 meter vertical end fed 1/2 wave antenna but I would have to mount in horizontally up there. May be used in attic or outdoors. December 14, 2014 No comments. Antenna in Attic? 9. To this end Woody installed an MFJ-17758 80-40 meter trap dipole in the. Jul 11, 2018 - 55 Attic Antennas Ham Radio Ham Radio Antenna In Attic Wiring regarding size 2048 X 1536 Best Hf Antenna For Attic - Service lifts are appropriate for each and every environment nearly. A simple 10 meter dipole for your attic. In my opinion, it's a work of art! All I did was make spacers out of 1/2" PVC tubing the wire is spaced 6" off center. " The 2-meter Lazy H described in this article is an old standby which should bring back a few nostalgic memories to 10- and 20-meter operators who have dabbled with combinations such. Then, after reading one review, I recalled my earlier experience years ago, in 1980, when I put up what was then a strange new multi-band vertical at a. A given Imax 2000 CB antenna with homebrew 5 meter radials ( teflon wire with silvered copper wire in it, as used in The European planes) work 10/12/15/17 with that, on 10 this year Japan, Australia, New Sealand, India, Hong Kong, China, all europe and Eurasia, Iceland, North and South America, South africa, Carabeans, Curacao, Suriname, etc, even a few Membershere from the Island. The best height for a 10M antenna is 30 ft and up. So why not use it horizontally in an attic? That was our plan. 4000, October 1996, “prohibits restrictions that impair… antennas used to receive video…. Searching for a half-size half-size 2-element Yagi, I found the design by Gary Hanson (KJ5VW), ref. Ron A 2 element beam antenna for 10 meters band Living in a condo has many advantages, none of which is being able to mount a tribander on a 60-foot tower. When originally in use, it was mounted in an attic. When I put the ohm meter across the antenna feed (LMR-400 coax) I was getting 12 mega ohms. Great for city lots, apartments, and other limted-space setups, these portable stealth antennas deliver maximum performance from minimal space. DIY 5$ Portable VHF Yagi Antenna for the 2 Meter Band (144-146 MHz) by F4HWK: In this publication i explain how to build a very light weight, cheap, easy to build and deployable in 30 seconds portable VHF antenna for the 2 meter band. You should, however, still be able to turn your receiver’s RF gain to maximum and adjust the AF gain to hear a smooth hissing sound. With it open, an ESR of five ohms is required to drive the meter to full scale. The ground will discharge static electricity, if any. I have always wondered what attics were good for. Was this review helpful to you?. At 80 meters, the. Measurement results for the S11 (or SWR) a. One end comes with a #10 solder lug making attachment to the matchbox simple and allowing the radiator portion to be replaced if ever necessary. Now I know. I have an Arrow Jpole and it works great - no gain really but gain antennas are going to be too tall for most attics. It utilizes a 9:1 UNUN transformer in order to bring the impedance of the antenna to more manageable values for your antenna tuner. Optimized to operate at 30 feet, they are small and light enough to be easily mounted on a rooftop tripod or can even be positioned within an attic space. net Abstract A coaxial-cable trap dipole antenna installed in the attic provides a surprisingly effective solution to HF operation on the 10, 15, 20, 30, 40, and 80 meter amateur bands at a QTH with restrictive covenants that prohibit outside antennas. DX Engineering is your portable antenna headquarters! We offer a massive selection of HF portable stealth antennas, including dipole, vertical dipole, loaded vertical, telescoping, whip, and wire antennas. The sixty-six foot version is built around a resonant 40 meter antenna and performs well on 80 meters. That 80 meter antenna is a royal PITA to get indoors. Aprox 98in Long. Use only the large loop without the tuning to connect to a radio. An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40, and 80 Meters 4. Yet, by taking advantage of broadband antennas and effecting the best possible impedance match to them, worthwhile results can be secured from an "attic special. MFJ-1769 is a full-size high-effiency 26’, 20-15-10-6 Meter full legal limit rotatable dipole that is super low-profile -- almost invisible from across the street! With a 13-foot turning radius and tiny 9 lb. txt) or read online for free. As you see, the antenna is a sloping, center-fed, doublet. Antenna Multibands Links. Assuming we're using an 80 through 10 meter screwdriver antenna, and you jump through all of the optimal Q mathematical hoops, this is what you'll discover. Solve Virtually Any Restricted Space Problem - 40 Meter Isotron only 22 inches x 16 inches x 15 inches! Easy, Quick, and Simple Installation; Tunes & Performs Without Radials or Antenna Tuners; Handles Up to 1000 Watts PEP. The 'form' an antenna makes covers a lot of territory! A 1/2 wave dipole is composed of two parts, a 'left' and 'right' side. If you dont let the ends of your 16 ft long ten meter dipole come in contact with wood or other combustable material in your attic , the 25 W peak output from your radio is not going to harm property or people. Selecting the Antennas : The IC-7100 has one SO-239 for HF plus 6 meters and a second SO-239 for the 144 and 440 MHz bands. Take note of the coax exiting the attic vent and running over to the balun1 which is connected to the wire running around the eaves of the house. Antenna in Attic? 9. As mentioned in several posts, many amateur radio operators are faced with restrictive covenants that limit their radio activities. Genuine Honda Idle Air Control Valve B16a Civic Vti Eg6 Eg9 36450-p30-000 Fs. 032 wall thickness and fits perfectly over the 10 gauge copper wire I used for forming the corners of the Moxon. 16-18 An 80-, 40-, 15- and 10-meter vertical. ), but it does have a rather high. Are you looking for best outdoor fm antenna, we’ve consulted top experts who has in-and-out knowledge about the outdoor fm antenna. com However, it may be possible to use your loft space to house an inverted 'V' Yagi beam antenna! Beam antennas focus radiation and sensitivity in one direction, allowing you to make contacts further away. 99 DG-G5RV-AB 160/10 Meters - $136. Mounted outside or in an attic this antenna will pull in your local weather broadcast with a solid signal allowing you the assurance to get all weather alerts. The antenna is 75 feet long and covers 80 through 10 meters. See full list on pa0rob. Hutchinson. Be prepared and able to communicate in case of emergency with the largest selection at eBay. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. Small size yields a natural stealth for HOA challenges. The universal mount design allows the user to install the antenna in many ways. The 80 meter band can be tuned by shortening at the tip. They can also be mounted in a loft or attic, where the dry conditions and increased elevation are advantageous for reception and antenna. A lot of hams are struggling in an HOA with antennas outdoors. MFJ Mini Antennas in the attic. What I ended up putting in the attic was a fan dipole for 40 / 20 / 15 / 10, with a 1:1 balun at the feedpoint. With it open, an ESR of five ohms is required to drive the meter to full scale. This vertical antenna is also very short (0. That is much better than having to hide the antenna in an attic space. This also requires a low launch angle from your antennas. This 10 - 75 meter horizontal loop antenna is fed with 450 ohm ladder line running down into the ham shack via a roof vent to a Palstar AT1500BAL balanced line antenna tuner. 4 Microsoft may earn an Affiliate Commission if you purchase something through recommended. Posted date: December 14, 2014 in: Antenna No Comments. At 80 meters, the. Such restrictions include lack of outdoor space, CC&Rs, HOAs, and municipal limitations on towers. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. Ram Memory Memoria 1gb 2rx16 Pc2-5300s-555-12-a0 Hys64t128020edl-3s-c2 Modulo 1g. As it relates to an antenna in an antenna in an attic it's irrelevant but if you want to belabor the point be my guest. •Need lots of room, keep them away from metal objects like heaters and ducts •Wire antennas can be run near the peak of the roof inside the attic, bent in odd shapes to match the space available. Coax Trap Design calculator software 5. To construct a dipole, use 10- to 18-gauge copper wire. Designed as 3/2 wavelength antennas for 14 MHz, they provide reasonable performance on many other bands. Long-wire antennas require a length greater than a quarter-wavelength (λ/4) or half (λ/2) of the radio waves (most consider a true long wire to be least one wavelength), whereas random wire antennas have no such constraint. Jul 11, 2018 - 55 Attic Antennas Ham Radio Ham Radio Antenna In Attic Wiring regarding size 2048 X 1536 Best Hf Antenna For Attic - Service lifts are appropriate for each and every environment nearly. On 40m, it worked a treat. Ground to the antenna base is about 19′ up, and ground to antenna tip is about 36′. If you are building - I leave that up to you - CB antennas are available fairly cheap brand new and used. 4 Microsoft may earn an Affiliate Commission if you purchase something through recommended. Repeater Stations (all bands): an evaluation is required for building-mounted antennas where power exceeds 500 watts ERP, and for non-building-mounted antennas if height above ground to the lowest point of the antenna is less than 10 meters and the power exceeds 500 watts ERP. I have some plans to go back. An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40, And 80 Meters - Free download as PDF File (. This is a powerful TV antenna for RV as you can watch your channels from up to 55 miles away. (yes, I know it's an overkill) One of the ideas is active antennas used for TV reception. Often random wire antennas are also (inaccurately) referred to as long-wire antenna. Optimized to operate at 30 feet, they are small and light enough to be easily mounted on a rooftop tripod or can even be positioned within an attic space. To this end Woody installed an MFJ-17758 80-40 meter trap dipole in the. Base antennas for inside the home are limited in what they can do but we have some interesting options below. No guy wires necessary as the steel conduit is very rigid. END FED 80 > 15 METER QRP ANTENNA by K0DTQ (Use it without a tuner!!) NA4L LAZY H ARRAY DIPOLE /INVERTED V MULTIBAND HF DIPOLE. Click on the link for the step by step instructions used by my radio club members to build the 40M to 6M spiral dipole. An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40, and 80 Meters John DeGood, NU3E [email protected] In this guide we try to demystify and explain items and concepts such as coax cables, types of antennas, the SWR or VSWR reading, best location, grounding of the antenna, ground planes and much more. The wire portion between the matchbox and the coil. Space saving. LC Resonance Calculator 8. Home Antenna 40/20/10 Meter Fan Dipole Attic Antenna by KD2GOE. 40 Meter lazy h array, NA4L. com Looking for input on the potential use of an inverted V for 10 meters placed in the attic. Note that scaling-down a full-size antenna by more than 50% causes significant performance reductions. (Metric measurements are 7 meters and 14 meters, totalling 21 meters. 392M 80-10 meter antenna coil This coil is designed for use on any frequency between 35-30 MHz. The coil diameter will be ≈3 inches, wound with #10 silver-plated wire, at 6 tpi, wound on a form with a dielectric constant no higher than 3, and mounted about the half way point or. Then I combined my 40,20, & 10 meter antenna with a w2au balun that was part of my 10 meter antenna. My noise antenna is a 40 to 10 meter multi-element wire-dipole located in the West end of the attic of my home. Cut the cord for $10: Best indoor TV antenna to buy in 2020. This is my attic 40/20/10 meter fan dipole that I installed in my attic today. The first was the MFJ-1782, the model that covers 30m - 10m with the manual control unit, to save a bit of money. Our 7-Band antennas cover 80, 40, 20, 17, 12, 10, and 6 meters, with no tuner required! Wire antennas are a great simple way to work 40M and 80M rather than a noisy vertical antenna that requires horizontal radials. An Attic Coaxial-Cable trap dipole for 10, 15, 20, 30, 40, and 80 meters The 40 meter Stealth Vertical Vertical antenna for 40 meters band Stealth Multiband Vertical A vertical antenna for 40 and 80 meters band, using a telescoping fiberglass fishing pole. The three horizontal ground plane radials are no longer attached to the base, but could be reused instead of the stainless steel whips attached to the whip. 5-10 minutes work, and you are on the air from your local scenic mountain or picnic area. You can surely use this antenna in the manner as recommended by MFJ. 11dbi antenna range in meters. The websites tvfool. High Frequency 160-10 Meters; 25-88 MHz (CB/6m/Low Band) 25-31 MHz (CB/10M) High Gain; 30-88 MHz (Low Band) High Gain; Field Tunable Whips; 108-174 MHz (VHF) Amateur VHF/2 Meter Antennas; Commercial VHF Antennas; 175-225 MHz (VHF) 300 to 379 MHz; 380-512 MHz (UHF) Quarter Wave UHF Antennas; High Gain UHF Antennas; No Ground UHF. Base and transportable Alpha Loop for permanent or temporary indoor and outdoor deployments with coverage of 10-40 Meters rated at 100 PEP SSB, 50 CW, or 25 watts for sporadic use of digital modes (10 watts for. More Antenna Classics - C. Great Antenna Joe P. But I also have antennas in my attic. With it open, an ESR of five ohms is required to drive the meter to full scale. If you can get a bit more wire up in your attic than I am able to hang, the open loop might perform as a folded dipole on 80 meters or lower. Chameleon Antenna Portable Magnetic HF (10 - 80M) Loop Antenna, 10W CW. Also available in 6, 10, 12, 15, 17, 20, 30, 40 and 75 meters. At ground level it performs as an NVIS antenna on 40 and 80 meters. tech/dipole ===== #HamRadio #. The antenna is a complete half wave for 40 meters till the coil. Check the antenna for return loss (SWR) and document what you've found, for future reference. covers 160 - 6 meters. Contact one of your local Diamond. 15Meters swr was ok. Outside arrays are disconnected and grounded when there is the slightest possibility of lightning. Expect to try many different noise antennas before you find one that works for your installation. Our attic antenna > > needs to be pretty much left by itself - no trips up > > there to change frequencies. MFJ Mini Loop, Bilal Isotron and Butternut Butterfly beam SGC Stealth Flagpole verticals. The antenna is rated to handle 125 Watts continuous and 1,500 watts PEP. W6HDG FAN DIPOLE ON A FENCE! A quick and easy hf multibander! THE MAYPOLE ANTENNA. The TX-1000 has a 24-segment "Signal Quality" meter calibrated from 0-100 (the best tuning meter I've ever encountered). Including this in the iPhone or other mobile apps, it would help people. At ground level it performs as an NVIS antenna on 40 and 80 meters. To construct a dipole, use 10- to 18-gauge copper wire. There are a different variety of RV antennas– outdoor antenna, indoor antenna, and foldable antenna. This turnkey weather band antenna system includes the long range weather band radio reception antenna, coax, and the weather band radio connector for your weather band radio. I am able to get 1:1 SWR with my antenna tuner and FT-897. Genuine Honda. The 2 meter band and 70 cm band (amateur radio service) can use the same antenna. TBJ-1 (ham) triband base antenna (144-148 MHz, 222-225MHz, 440-450 MHz) Maximum power 75 watt $64 (comes complete with pvc pipe) featured in March QST 2017 US patent 9,608,336 (postage $10-15 - depending on location from California). Over a period of several months prior to the completion of my attic antenna suite I operated with a borrowed AEA Isoloop antenna. ), but it does have a rather high. A full-size ( = ½λ) dipole antenna for the 20 mtr band spans about 10 meters (33 ft). Often random wire antennas are also (inaccurately) referred to as long-wire antenna. 5-10 minutes work, and you are on the air from your local scenic mountain or picnic area. – 20/15/10 is about 26-27 ft (20M dipole = 33 ft) • Traps add some loss – Typically 1-2 dB – A lossy antenna is better than no antenna • Traps reduce the SWR bandwidth – Trim lengths carefully and use a tuner!. The push up pole is mounted atop our back yard trellis, which is ~10′ tall. 10, 15, and 20 Meter models are designed for mast or tower mounting. With the antenna wires laid out on the ground, fully extended, run the 20 1. An Attic Coaxial-Cable trap dipole for 10, 15, 20, 30, 40, and 80 meters The 40 meter Stealth Vertical Vertical antenna for 40 meters band Stealth Multiband Vertical A vertical antenna for 40 and 80 meters band, using a telescoping fiberglass fishing pole. It is a nice piece of work. Also available in 6, 10, 12, 15, 17, 20, 30, 40 and 75 meters. This antenna consists of two spirals, BALUN and feed line. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. This Dipole system is fully adjustable from 10 to 80 meters. TAK-tenna 40 to 10 meter Multiband Antenna Boom = 30 in/76cm; sprial radiating element = 30 in/76 cm diameter; weight = 4 Lbs/1,8Kg TAK-tenna 80 to 6 meter Multiband Antenna. Ham Dipole Antenna 10 Meter Directional Double-HamStick-Style Attic Buster. I modeled several configurations and found that a simple perimeter wire running around the attic provides more than enough capacitance to resonate the 30 ft wire at 3. The FM10 was connected using the 75-ohm output from the antenna and a 1/2 meter coax cable. I am in an HOA and have been on the Board of Directors for the past 10 years, so I know the rules. Over a period of several months prior to the completion of my attic antenna suite I operated with a borrowed AEA Isoloop antenna. Build your own wire antenna pd9z w3pp ve6jy 80 meter beam an attic coaxial cable trap dipole for 10 15 20 30 40 and 80 meters 5 elements wire yagi for 80m. High Frequency 160-10 Meters; 25-88 MHz (CB/6m/Low Band) 25-31 MHz (CB/10M) High Gain; 30-88 MHz (Low Band) High Gain; Field Tunable Whips; 108-174 MHz (VHF) Amateur VHF/2 Meter Antennas; Commercial VHF Antennas; 175-225 MHz (VHF) 300 to 379 MHz; 380-512 MHz (UHF) Quarter Wave UHF Antennas; High Gain UHF Antennas; No Ground UHF. "The FM10 is somewhat directional. Jul 11, 2018 - 55 Attic Antennas Ham Radio Ham Radio Antenna In Attic Wiring regarding size 2048 X 1536 Best Hf Antenna For Attic - Service lifts are appropriate for each and every environment nearly. 5 pounds), they are ideal for portable work. radioreference. In my opinion, it's a work of art! All I did was make spacers out of 1/2" PVC tubing the wire is spaced 6" off center. This unique design means Wilson antennas will last and last in the most rugged of travel… no matter where you use them. Simulation is a great tool for the attic antenna farmer because it will help you to understand what will NOT work. Solve Virtually Any Restricted Space Problem - 40 Meter Isotron only 22 inches x 16 inches x 15 inches! Easy, Quick, and Simple Installation; Tunes & Performs Without Radials or Antenna Tuners; Handles Up to 1000 Watts PEP. The sensor antennas have gone through UV and environmental testing. You will need a peak in your attic that is tall enough for the antenna to fit. 10 Meter Antenna Mobile NMO Stainless Whip Low Los. 2 Meter Beam Antenna Plans November 12, 2018 - by Arfan - Leave a Comment Collapsible 3 element 2 meter yagi ae5ph radio note dg7ybn building yagis cushcraft radio antennas the wb0cmt 3 element 2 meter yagi using pvc boom build an optimum ed 2 meter quad. Hutchinson. The object of the exercise was to produce an aerial that would allow me to operate from 40 metres to 10 metres, specifically 40, 20, 17, 15 & 10 metres. See full list on pa0rob. Signal strength meter: There are several low cost TV antenna signal strength meters that can be used. This also requires a low launch angle from your antennas. and 10 meter wires through the stand-offš as shown in the graphic with. (yes, I know it's an overkill) One of the ideas is active antennas used for TV reception. antenna’s overall width is 68. Over a period of several months prior to the completion of my attic antenna suite I operated with a borrowed AEA Isoloop antenna. This 2 Meter 300 Ohm Slim Jim antenna is constructed from regular 300 ohm twinlead. Receives TV broadcasting including 4K and 1080 HDTV for highest-quality picture and sound Multi-directional 80 mile reception range Dual-Stage apliification for the best reception and clear picture 2-Ways to mount in your attic or outdoors for superior picture and sound Frenquency range Low VHF 54-88 MHz / High VHF 174-220 MHz / UHF 470-698 MHz. I have a Cushcraft R7000 up, which is a half wave trapped antenna, but no radials. This is a powerful TV antenna for RV as you can watch your channels from up to 55 miles away. HF Yagi, HEXX Beam and Rotatable Antennas Choose from top-brand HF Yagi, HEXX beam, and other rotatable antennas to meet your high-frequency needs. Television antennas are manufactured in two different types: "indoor" antennas, to be located on top of or next to the television set, and "outdoor" antennas, mounted on a mast on top of the owner's house. It is a great antenna for HAM radio operators living in HOA controlled housing, hams desiring a very stealthy RV antenna, Field Day operations, sailboats, portable operating, attic and backyard installations, ARES and RACES, etc. On 20 meters the bandwidth was more generous, ranging from 14. In theory, we could fashion a four-wire antenna for the 80, 40, 30, 20, 15 and 10-meter bands. An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40, And 80 Meters - Free download as PDF File (. Considering a Uniden 980 and a small amp of 100 watts. Indoor antennas do not need a ground. 6 MHz), 70 cm (420-450 Mhz), and post February 2009 UHF-TV bands. Often random wire antennas are also (inaccurately) referred to as long-wire antenna. W6HDG FAN DIPOLE ON A FENCE! A quick and easy hf multibander! THE MAYPOLE ANTENNA. But, I found very few antennas out there that met the one key requirement for ALE a resonant vertical with coverage of the 80-40-20-30-20-15-12-10 meter ham bands, without need for a tuner. Features: Easy to install and super strong. The TX-1000 has a 24-segment "Signal Quality" meter calibrated from 0-100 (the best tuning meter I've ever encountered). MCR COMMUNICATIONS G5RV DOUBLE SIZE TOP BAND 160 METERS to 10 full Size Superior Poly Weave Wire Antenna This G5RV Double-Size HF Wire Antenna is an HF Amateur Band, Receive and Transmit Antenna, covering 160m to 10m bands. MFJ Mini Loop, Bilal Isotron and Butternut Butterfly beam SGC Stealth Flagpole verticals. Also I hope to pickup VHF-Hi 7 (WNGS) out of Buffalo, when/if they increase their ERP levels. Note that scaling-down a full-size antenna by more than 50% causes significant performance reductions. Diamond ® Antennas are sold through authorized dealers. 080 MHz with the lowest SWR being 1. fairly simple. Cost isn't a factor as I have been looking at the CliffDweller II ($40 6-80 meters) all the way to a MFJ magnetic loop ($340 10-30MHz). 10, 15, and 20 Meter models are designed for mast or tower mounting. 2 Meter Attic Antenna May 1, 2018 - by Zamira - Leave a Comment M0sbf station aerials ksl technical an attic coaxial cable trap dipole for from long wire to yagi m5aml homebrew aerials 2m 70cm yagi on2pco. The Zepp is composed of a 25 foot matching section and a 50 foot radiator. This antenna really does perform well. As you see, the antenna is a sloping, center-fed, doublet. 5:1 on either band with 440 being slightly better. com should tell you all you need to know. The loop is rigid enough to maintain its shape but flexible for portable transport or attic installation. I am more interested in SWL than ham bands. Make a 10 or 20 metre Yagi beam antenna in your attic Qsoshack. 4 Microsoft may earn an Affiliate Commission if you purchase something through recommended. Our attic antenna > > needs to be pretty much left by itself - no trips up > > there to change frequencies. Install a 9:1 UNUN at the antenna end of the coax. Cut the cord for $10: Best indoor TV antenna to buy in 2020. The antenna was always going to be mounted in the attic as no external antennas are permitted at my QTH, the attic allows the antenna to 'beam' roughly northwest / southeast and the house is. 11dbi antenna range in meters. W6HDG FAN DIPOLE ON A FENCE! A quick and easy hf multibander! THE MAYPOLE ANTENNA. Like every antenna that exists, random or long wires have advantages and disadvantages. 5th question: I have 10 meter vertical end fed 1/2 wave antenna but I would have to mount in horizontally up there. I finally decided to expand out of the VHF/UHF bands into HF. I am considering putting antennas in the attic so as not to rile DW by turning the yard into an antenna farm and risking life and limb climbing on a steep roof. Operation on 12,15,17,30,60,80m will be tuner dependent. See full list on electronics-notes. So why not use it horizontally in an attic? That was our plan. The push up pole is mounted atop our back yard trellis, which is ~10′ tall. Trapping the Mysteries of Trapped Antennas 3. They cover all bands from 80-10 meters with a wide range antenna tuner. Get a strong, clear signal with less noise from 2 meters through 40 meters with your choice of single- and multi-band Yagi antennas with up to 16 elements. Great for city lots, apartments, and other limted-space setups, these portable stealth antennas deliver maximum performance from minimal space. The results on 15 meters were similar to 40 meters with a range of 21. Omni-directional antennas like the 2 Meter J-Pole or 2 Meter Slim Jim antennas have a donut shaped radiation pattern. It is a great antenna for HAM radio operators living in HOA controlled housing, hams desiring a very stealthy RV antenna, Field Day operations, sailboats, portable operating, attic and backyard installations, ARES and RACES, etc. A UHF antenna can be hidden inside of a vent pipe outdoors on top of a roof. We have filter more than 100+ of product to give you top 10 list of best outdoor fm […]. Although most 10 Meter Base Station Antennas are similar, there are several differences worth noting. Our 4-Band antennas cover 40, 20, 10, and 6 meters, with no tuner required! 12 meters may also work on the 4-Band 300 watt model. Shark 5 Pack Mini HF Single Band Mobile Ham Radio Antennas 10 15 20 40 75 Meter. Comparing antennas designed for a given Ham band, the Light Beam antennas are 1/4 the width of a normal dipole or Yagi and are 1/2 the size of a fullwave quad antenna. The 2 meter band and 70 cm band (amateur radio service) can use the same antenna. To eliminate possible RFI the antenna is attached to a UNUN 1:1. 99 $25 - $49. Power rating is a conservative 100 watts. Small 40 Meter Beam Antenna November 29, 2018 - by Arfan - Leave a Comment 20m mini yagi beam the tak tenna review restricted and limited e hf hy gain make a 10 or 20 metre yagi beam antenna in your attic equipment for portable hf operations. Price: $39. net Abstract A coaxial-cable trap dipole antenna installed in the attic provides a surprisingly effective solution to HF operation on the 10, 15, 20, 30, 40, and 80 meter amateur bands at a QTH with restrictive covenants that prohibit outside antennas. Build your own wire antenna pd9z w3pp ve6jy 80 meter beam an attic coaxial cable trap dipole for 10 15 20 30 40 and 80 meters 5 elements wire yagi for 80m. Assuming we're using an 80 through 10 meter screwdriver antenna, and you jump through all of the optimal Q mathematical hoops, this is what you'll discover. On 40-10 meters it tunes easily with my PFR3 and KX3. The 'form' an antenna makes covers a lot of territory! A 1/2 wave dipole is composed of two parts, a 'left' and 'right' side. ), but it does have a rather high center gable. I have both. 4 Microsoft may earn an Affiliate Commission if you purchase something through recommended. 6 m); the height difference between its top and bottom is 26. Antenna 1 = 126ft open wire line doublet (True ladder line dot com) to a Johnson matchbox balanced tuner. This vertical antenna is also very short (0. It may sound and look like a G5RV but it is a substantially different antenna on 20 meters. com should tell you all you need to know. The 10 meter antenna however, was very narrow. Midland 18-327B 29. December 14, 2014 No comments. 5th question: I have 10 meter vertical end fed 1/2 wave antenna but I would have to mount in horizontally up there. Made From a TV Satellite Dish. Ham Dipole Antenna 10 Meter Directional Double-HamStick-Style Attic Buster. Operation on 12,15,17,30,60,80m will be tuner dependent. That is much better than having to hide the antenna in an attic space. The above graphic depicts the overall layout of this loop cut to one full wavelength (270ft) on the lowest operating frequency (75 meters). Or if I was really close to the station, forget the antenna and ground. 40-10 Meter Antennas. The top section whip is adjustable for the lowest possible SWR and is manufactured from 17-7 stainless steel. To optimize the antenna for a frequency RANGE, do the calculations twice, once for the low end of the range and once for the high end; then average the two and plan to adjust the VSWR. A determined operator, with an attic of nice size on a 2-story house, really has a wonderful platform for which to launch a great set of antennas. On 30 and 10 meters, feedline loss from high standing wave is a worry. Our attic antenna > > needs to be pretty much left by itself - no trips up > > there to change frequencies. The 40 meter dipole was loaded with some coils so that I could fit it in the attic. 🙁 However, in my junk box was a WW II surplus ‘junk’ tuning capacitor that would work!. antennas eg. 4000, October 1996, “prohibits restrictions that impair… antennas used to receive video…. What if I don't have a big enough lot to hang a 122 foot antenna? We offer two other standard versions, one at 66 feet and one at 33 feet. I wanted my 2 meter version to be free standing and rotatable so I built mine with brass tubing on a center, non conductive boom just like a beam. So why not use it horizontally in an attic? That was our plan. -Connect a SWR meter to the antenna and to the radio, making sure you attached it to the right connector posts-Take a SWR reading, and if it is beyond 1. 080 MHz with the lowest SWR being 1. The only concern with attic mounted antennas is the space available to you for mounting. Attic Coaxial-Cable Trap Dipole - for 10, 15, 20, 30, 40, and 80 Meters from NU3E Bisquare for 10 metres by G3SYC and M0BCG Build This Novice Four-Band Vertical (1,568,118 bytes, PDF file) QST June 1978, pp. With SW1 closed, the full scale sensitivity of the ESR meter is one ohm. Silverline cares about the environment. 40-10 m OCF antenna layout On 40-20-17-15-12-10 meter models we use a resonance compensator to pick up the 15 meter band not present on many competing OCF antenna products. Wilson offers CB antennas, studs, CB antenna mounts, cables and other accessories to meet all your needs. The 'form' an antenna makes covers a lot of territory! A 1/2 wave dipole is composed of two parts, a 'left' and 'right' side. (Metric measurements are 7 meters and 14 meters, totalling 21 meters. com and fmfool. While an amateur license is required to transmit on the 2 meter and 70 cm bands, the MURS frequencies are unlicensed. One end comes with a #10 solder lug making attachment to the matchbox simple and allowing the radiator portion to be replaced if ever necessary. I selected a 133 foot end-fed wire antenna from www. Television antennas are manufactured in two different types: "indoor" antennas, to be located on top of or next to the television set, and "outdoor" antennas, mounted on a mast on top of the owner's house. An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40, and 80 Meters John DeGood, NU3E [email protected] 25″ piece of steel conduit that I painted white, to match the antenna. Ground to the antenna base is about 19′ up, and ground to antenna tip is about 36′. The Scatter Forager "grid" antenna in the image above will be used for picking up VHF-Hi channel 9, 11, 13, and VHF-Lo 6, post Canadian Transition, August 2011. The best way to determine the height requirement is to use a test antenna and a field-strength meter and measure received signal strength at different heights with the test antenna oriented towards the desired channels. Part of the 80 through 10 meter G5RV antennas is ladder line as well. My attic is not the most antenna friendly place for a conventional horizontal dipole (i. This Antenna is called a Dipole, but it is not a wire antennaI'm used to a Dipole as a Long Wire. We choose the top most quality product, which comes with amazing features you’ve never heard before. I am in Lot 1 next to the gate, and blackmailed my HOA into outdoor HF antennas. The ends of the 40 had to wrap around the perimeter of the attic a bit to fit, so the 40 meter element is almost like a folded dipole of sorts. The latter is a 10K ohm trimmer potentiometer used to set the calibration of the ESR meter after the circuit is built. Practical Antenna Handbook - J. Dipole Antenna Calculator 6. ARRL Antenna Compendium. I selected a 133 foot end-fed wire antenna from www. Omni-directional antennas like the 2 Meter J-Pole or 2 Meter Slim Jim antennas have a donut shaped radiation pattern. Make a 10 or 20 metre Yagi beam antenna in your attic Qsoshack. Works great in the attic and was. When originally in use, it was mounted in an attic. To get a better idea of the antenna's operation, think of it as an inverted Vee that has been rotated until one leg points straight up and the other is parallel to the ground. Indoor antennas (including attic antennas) are not generally susceptible to direct strikes. HVAC, misc wiring, etc. The only concern with attic mounted antennas is the space available to you for mounting. Ron A 2 element beam antenna for 10 meters band Living in a condo has many advantages, none of which is being able to mount a tribander on a 60-foot tower. It’s a long way from the “rabbit-ear” designs you might think of when picturing indoor antennas, and much cooler looking than the metal contraptions often found outdoors. Mounted outside or in an attic this antenna will pull in your local weather broadcast with a solid signal allowing you the assurance to get all weather alerts. Antenna Multibands Links. If you decide to feed your loop with coax, I'd suggest using RG-8X or RG-213 and a high power, high performance 1:1 or 4:1 Current-type balun. Here, you will find a variety of base station antenna options to choose from: Indoor and/or Outdoor Base Station Antennas, Omnidirectional Base Station Antennas, VHF Base Station Antennas, Yagi Antennas, Discone Antennas, and More!. The antenna was always going to be mounted in the attic as no external antennas are permitted at my QTH, the attic allows the antenna to 'beam' roughly northwest / southeast and the house is. 392M 80-10 meter antenna coil This coil is designed for use on any frequency between 35-30 MHz. Efficiencies on the 60 meter band are enough that the signal should be usable, though 6 dB ( one S-unit ) lower than from a 90 foot long, dipole antenna. DIY 5$ Portable VHF Yagi Antenna for the 2 Meter Band (144-146 MHz) by F4HWK: In this publication i explain how to build a very light weight, cheap, easy to build and deployable in 30 seconds portable VHF antenna for the 2 meter band. If a live wire comes in contact with the case, the current goes to ground through the grounding prong rather than through the body of a person touching the case. ) The 10 meter wire, approx 8 ft. One end comes with a #10 solder lug making attachment to the matchbox simple and allowing the radiator portion to be replaced if ever necessary. 99 $50 - $74. To optimize the antenna for a frequency RANGE, do the calculations twice, once for the low end of the range and once for the high end; then average the two and plan to adjust the VSWR. The near vertical portion of wire (20 ft) from the attic shortwave antenna to the receiver could pick up vertically polarized electrostatic interference! Option Three: the one I recommend. In this way, with two multiband antennas, I. The center of each Tee should be joined to the end of each of the dipole main elements. But, I found very few antennas out there that met the one key requirement for ALE a resonant vertical with coverage of the 80-40-20-30-20-15-12-10 meter ham bands, without need for a tuner. This unique design means Wilson antennas will last and last in the most rugged of travel… no matter where you use them. Your receiver’s S-Meter needle should drop to zero when you disconnect your antenna. Terrain Loss The area between the broadcast and receive antenna's should be clear of obstructions for best reception, the free space region. In an earlier post I described how I was having SWR issues (Attic antenna ghosts)with my Alpha Delta DX-EE antenna in the attic. Details of the antenna can be found here. The antenna terminates to an SO-239 and can be directly be connected on an external antenna tuner with a 1 foot jumper cable (not supplied). 40/20/10 Meter Fan Dipole Attic Antenna by KD2GOE. Its intended use is for commercial, export and 10-meter ham. It is approx 41 ft. Also available in 6, 10, 12, 15, 17, 20, 30, 40 and 75 meters. The sixty-six foot version is built around a resonant 40 meter antenna and performs well on 80 meters. About these results 1) Test method Each antenna was tested in the same location and the results were recorded using a Winegard signal strength meter. VSWR is under 2:1 for nearly the entire 10 meter band. Maybe I could use that as a generic 70cm, 2m, and 6m attic antenna. Enough about that. A better antenna would be the Dominator 5/8-wave, or Kreco Co-Plane at least 45 feet above the attic floor. Even indoors, in the attic of my bungalow only 3m above ground level, it outperformed a Diamond CP-5 vertical by a few dB on 10 metres. This turnkey weather band antenna system includes the long range weather band radio reception antenna, coax, and the weather band radio connector for your weather band radio. 6 meter 2 element: 6. Comparing antennas designed for a given Ham band, the Light Beam antennas are 1/4 the width of a normal dipole or Yagi and are 1/2 the size of a fullwave quad antenna. Practical Antenna Handbook - J. It will provide years and years of great service and great contacts. Base antennas for inside the home are limited in what they can do but we have some interesting options below. The A-99’s high power antenna can handle 2000 watts of power and is extremely well insulated to withstand up to 14,500 volts. It’s overall length is 53ft , and should be fed with good quality 50 Ohms coaxial cable (recommended feed length of 45 or 90 ft). Funkamateur Magazine 1990-2011. Nested dual band antenna Great! The only odd thing is that the swr curve on 10 meters is WOW! under a 1. Details of the antenna can be found here. It is the noise you hear when you disconnect your antenna. The easiest way to do this is two mount the two antennas vertically, one higher than the other. The G5RV has a modest SWR in the 80, 40, 20, and 12 meter bands, is usable on 15 meters. All it needs is 12 feet of linear space to cover 5 HF bands – 40 meters, 20 meters, 15 meters, 10 meters and 6 meters. Ram Memory. Then I combined my 40,20, & 10 meter antenna with a w2au balun that was part of my 10 meter antenna. Indoor antennas do not need a ground. 9 Next figure how to deploy as portable. To remedy the narrow bandwidth I used a bowtie dipole antenna for 10 meters. Works great. See full list on electronics-notes. 10M Bent Attic Antenna - A Yagi No Less Hidden Attic Antenna -- From NU3E -- An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 40, and 80 Low Frequency Attic Loop antenna - from Bill Farmer W3CSW Attic Loop antennas - from William Hansgen The Flagpole Deluxe, by Fred Schnell W6OZF, QST Magazine, March 1978, pp. Base Station Antennas: Base stations are a great way to stay connected, especially during an emergency. Television antennas are manufactured in two different types: "indoor" antennas, to be located on top of or next to the television set, and "outdoor" antennas, mounted on a mast on top of the owner's house. A UHF antenna can be hidden inside of a vent pipe outdoors on top of a roof. The ribbon cable should hang downwards and forms part of the radiating antenna. I do not recommend this, unless you do not happen to have blown fiberglass insulation in your attic. Outside antennas must be grounded for safety and reception. Returning back to Ham radio after a 40 year hiatus. Most of the signals are within 108 and 145 degrees (compass heading) but one is at 225 degrees. 10 Meter Radios. The gain of this stage is set by R17, R18, and R19. There is nothing that you can do to guarantee that your electronics will survive a direct strike. Minimum SWR. 15Meters swr was ok. 6 MHz), 70 cm (420-450 Mhz), and post February 2009 UHF-TV bands. A UHF antenna can be hidden inside of a vent pipe outdoors on top of a roof. Silverline cares about the environment. As it relates to an antenna in an antenna in an attic it's irrelevant but if you want to belabor the point be my guest. Please give me your thoughts for location and make and model of antenna. MFJ-1769 is a full-size high-effiency 26’, 20-15-10-6 Meter full legal limit rotatable dipole that is super low-profile -- almost invisible from across the street! With a 13-foot turning radius and tiny 9 lb. See full list on electronics-notes. So, some differences may be due to non-ideal impedance matching or the difference in height. The GE 20431 Futura Outdoor/Indoor/Attic TV antenna is one of the best-looking options on the market. Great deals on 10 Meter Antenna. On 20 meters the bandwidth was more generous, ranging from 14. Terrain Loss The area between the broadcast and receive antenna's should be clear of obstructions for best reception, the free space region. net Abstract A coaxial-cable trap dipole antenna installed in the attic provides a surprisingly effective solution to HF operation on the 10, 15, 20, 30, 40, and 80 meter amateur bands at a QTH with restrictive covenants that prohibit outside antennas. We tested seven OTA models to find out which is best. Attic antennas •Many types of antenna can be mounted in the attic IF you don’t have Radiant Barrier (Tech Shield). The Scatter Forager "grid" antenna in the image above will be used for picking up VHF-Hi channel 9, 11, 13, and VHF-Lo 6, post Canadian Transition, August 2011. "Glad I cut the cord and found an antenna that works great. May be used in attic or outdoors. TBJ-1 (ham) triband base antenna (144-148 MHz, 222-225MHz, 440-450 MHz) Maximum power 75 watt $64 (comes complete with pvc pipe) featured in March QST 2017 US patent 9,608,336 (postage $10-15 - depending on location from California). This aerial is designed to fit into a small attic, loft or roof space, or even into the. is active for 40,20,15 and 10 and aligned After the coil is only active for 80 meters. Space saving. Indoor antennas (including attic antennas) are not generally susceptible to direct strikes. Micro Center - Computers and Electronics - Thousands of products to buy: desktops, laptops, monitors, build your own PC parts, upgrades, digital imaging, printing. That is because the antenna has a low angle of radiation and 4-6 db gain over a dipole in its favored, broadside directions. (yes, I know it's an overkill) One of the ideas is active antennas used for TV reception. My lab is right under the area and I have short piece of hardline going to that area. -Connect a SWR meter to the antenna and to the radio, making sure you attached it to the right connector posts-Take a SWR reading, and if it is beyond 1. Mounted outside or in an attic this antenna will pull in your local weather broadcast with a solid signal allowing you the assurance to get all weather alerts. Build a 10 or 20 metre Yagi antenna in your attic Building an effective HF antenna can be difficult when space is limited, building a beam antenna may appear impossible if you don't have enough room to house the directors and reflectors required by these beam antennas. Also Great For Limited Spaces. 2 Meter Beam Antenna Plans November 12, 2018 - by Arfan - Leave a Comment Collapsible 3 element 2 meter yagi ae5ph radio note dg7ybn building yagis cushcraft radio antennas the wb0cmt 3 element 2 meter yagi using pvc boom build an optimum ed 2 meter quad. Build a multiband HF antenna using multiple dipoles and single coax feed. I added “fans” for 20 and 10 meters using the MFJ 259b to measure and cut. Attic Antenna-- From NU3E -- An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 40, and 80 Meters All-band Wire Antenna - From Joe Tyburczy, WB1GFH BackPack Antennas -- From HFpack, The HF Portable Group. So dilemma is length of antenna vs the slope. On 40 meters the 2:1 SWR bandwidth extended from 7. You simply take a piece of 300 ohm twinlead about one inch longer than in the picture above, trim both of the ends down to bare wires, twist and solder. The antenna terminates to an SO-239 and can be directly be connected on an external antenna tuner with a 1 foot jumper cable (not supplied). Part of the 80 through 10 meter G5RV antennas is ladder line as well. They cover all bands from 80-10 meters with a wide range antenna tuner. Lengths are given in feet, inches and fractions of inches, and in meters. Enough about that. To get my feet wet I was considering a Double Bazooka to put into my garage attic to get started. The best height for a 10M antenna is 30 ft and up. 40 ft Antenna 2 - Double bazooka made from RG11 coax fed with LMR400. A lot of hams are struggling in an HOA with antennas outdoors. 25″ piece of steel conduit that I painted white, to match the antenna. High Frequency 160-10 Meters; 25-88 MHz (CB/6m/Low Band) 25-31 MHz (CB/10M) High Gain; 30-88 MHz (Low Band) High Gain; Field Tunable Whips; 108-174 MHz (VHF) Amateur VHF/2 Meter Antennas; Commercial VHF Antennas; 175-225 MHz (VHF) 300 to 379 MHz; 380-512 MHz (UHF) Quarter Wave UHF Antennas; High Gain UHF Antennas; No Ground UHF. Newest 2020 Five Star Yagi Satellite HD Tv Antenna Up To 200 Mile Range Attic Or Roof Mount Tv Antenna Long Range Digital Ota [Newest 2020] Five Star Yagi Satellite HD TV Antenna Up To 200 Mile Range Attic Or Roof Mount TV Antenna Long Range Digital OTA. It’s overall length is 204ft , and should be fed with good quality 50 Ohms coaxial cable. These are multi-band, center-fed dipole antenna capable of 1,500 watts. The MFJ-1706 is just a dipole. Space saving. Posted date: December 14, 2014 in: Antenna No Comments. The Scatter Forager "grid" antenna in the image above will be used for picking up VHF-Hi channel 9, 11, 13, and VHF-Lo 6, post Canadian Transition, August 2011. Fast & Free shipping on many items!. With the antenna wires laid out on the ground, fully extended, run the 20 1. The larger the wire, the wider the bandwidth. 40-10 Meter Antennas. This unique design means Wilson antennas will last and last in the most rugged of travel… no matter where you use them. May be used in attic or outdoors. MFJ-1778 - G5RV Wire Antenna - Multi-Band center-fed dipole antennas. Note that scaling-down a full-size antenna by more than 50% causes significant performance reductions. We have complete OCF antennas and also the impedance transformers and chokes as separate products (see below for various options with and without vertical radiators). If you are building - I leave that up to you - CB antennas are available fairly cheap brand new and used. To remedy the narrow bandwidth I used a bowtie dipole antenna for 10 meters. 032 wall thickness and fits perfectly over the 10 gauge copper wire I used for forming the corners of the Moxon. If you can get a bit more wire up in your attic than I am able to hang, the open loop might perform as a folded dipole on 80 meters or lower. 228 MHz with the lowest SWR at 1. Our attic antenna > > needs to be pretty much left by itself - no trips up > > there to change frequencies. Since we are installing it in an attic or other confined, indoor location, most likely we will need to build or buy a loaded mobile antenna. The all-band doublet antenna is nothing more than a 1/2. **Non Sponsor** I have never seen 2 fiberglass antennas mounted together on Horz before!. It took me 2 minutes running to lower 80 meter Open wire line antenna and put up DBZ. Practical Antenna Handbook - J. fuzzthepiguy. The SIGMA G5RV Half Size HF Wire Antenna is an HF Amateur Band, Receive and Transmit Antenna, covering 40m to 10m bands. Wire loop antennas like this one are quite effect and stealthy as well. Typical VSWR for 10 through 80 is 1. 0 m); and the longest wire is 35. The antenna has a standard 3/8-24 threaded connector for secure mounting. We have filter more than 100+ of product to give you top 10 list of best outdoor fm […]. Roofspace Antennas How to build a roofspace antennas and get them to work. Mounted outside or in an attic this antenna will pull in your local weather broadcast with a solid signal allowing you the assurance to get all weather alerts. My noise antenna is a 40 to 10 meter multi-element wire-dipole located in the West end of the attic of my home. 40 ft Antenna 2 - Double bazooka made from RG11 coax fed with LMR400. In theory, we could fashion a four-wire antenna for the 80, 40, 30, 20, 15 and 10-meter bands. What if I don't have a big enough lot to hang a 122 foot antenna? We offer two other standard versions, one at 66 feet and one at 33 feet. I wanted my 2 meter version to be free standing and rotatable so I built mine with brass tubing on a center, non conductive boom just like a beam. element and let it serve also as the 15 meter element which eliminates the 15 meter section. The 40 Meter Isotron Antenna. My attic is not the most antenna friendly place for a conventional horizontal dipole (i. Some experimentation may have to be done with the coil length for a full wave design). There are a different variety of RV antennas– outdoor antenna, indoor antenna, and foldable antenna. ARRL Handbook 1990-2009. A "magnetic loop" antenna, so named because it responds primarily to the magnetic rather than electrical component of a radio wave, is a very small (relative to wavelength) single-turn loop tuned to resonance with a series capacitor. net Abstract A coaxial-cable trap dipole antenna installed in the attic provides a surprisingly effective solution to HF operation on the 10, 15, 20, 30, 40, and 80 meter amateur bands at a QTH with restrictive covenants that prohibit outside antennas. DX Engineering is your portable antenna headquarters! We offer a massive selection of HF portable stealth antennas, including dipole, vertical dipole, loaded vertical, telescoping, whip, and wire antennas. Efficiencies on the 60 meter band are enough that the signal should be usable, though 6 dB ( one S-unit ) lower than from a 90 foot long, dipole antenna. This page contains some antenna designs for the 2 meter amateur (144-148 MHz), MURS (151. I could always later on mount it outside. – 20/15/10 is about 26-27 ft (20M dipole = 33 ft) • Traps add some loss – Typically 1-2 dB – A lossy antenna is better than no antenna • Traps reduce the SWR bandwidth – Trim lengths carefully and use a tuner!. 40 ft Antenna 2 - Double bazooka made from RG11 coax fed with LMR400. They can also be mounted in a loft or attic, where the dry conditions and increased elevation are advantageous for reception and antenna. The three horizontal ground plane radials are no longer attached to the base, but could be reused instead of the stainless steel whips attached to the whip. Omni-directional antennas like the 2 Meter J-Pole or 2 Meter Slim Jim antennas have a donut shaped radiation pattern. It is a great antenna for HAM radio operators living in HOA controlled housing, hams desiring a very stealthy RV antenna, Field Day operations, sailboats, portable operating, attic and backyard installations, ARES and RACES, etc. That is because the antenna has a low angle of radiation and 4-6 db gain over a dipole in its favored, broadside directions. Ideas on 80 meter attic antenna? 4. 10, 15, and 20 Meter models are designed for mast or tower mounting. A "Broomstick" antenna made with a 2-meter section of 25-mm diameter plumbers PVC pipe, terminated with a 30-cm diameter top loading disk is the minimum I would use for transmitting. I sent a post out on the Yahoo group ham-antenna over time there seemed to be a consensus coming in that it may be the SEP. I have the option of using a large attic mounted antenna or a small (less than 1 meter) outside antenna. I substituted an SGC SG-239 automatic tuner for the tuned circuit shown above. org ecause I recently ungraded to a Technician Plus license, I wanted to take advantage of my new I-IF privileges. Great for city lots, apartments, and other limted-space setups, these portable stealth antennas deliver maximum performance from minimal space. antennas eg. In this way, with two multiband antennas, I. To this end Woody installed an MFJ-17758 80-40 meter trap dipole in the. Attic TV Atenna - any ideas? 6. I have an Arrow Jpole and it works great - no gain really but gain antennas are going to be too tall for most attics. "The FM10 is somewhat directional. tech/dipole ===== #HamRadio #. Use the untuned winding as a tickler coil in a regenerative set. Trapping the Mysteries of Trapped Antennas 3. – 20/15/10 is about 26-27 ft (20M dipole = 33 ft) • Traps add some loss – Typically 1-2 dB – A lossy antenna is better than no antenna • Traps reduce the SWR bandwidth – Trim lengths carefully and use a tuner!. Depending on the specific model you go after, you can expect anywhere from 50 to 70 miles of reception in optimal conditions. DG-G5RV-AB 80/10 Meters - $81. Made From a TV Satellite Dish. In the column under each antenna listed in the grid is the best signal strength percentage according to the signal meter that could be obtained by the antenna on the channel listed in red to the left. Install a 9:1 UNUN at the antenna end of the coax. Indoor antennas (including attic antennas) are not generally susceptible to direct strikes. Construction Info For 30-Meter Magnetic Loop Antenna. (same coil design is used for 20 thru 10 meters for the half wave antenna. The 10 meter antenna however, was very narrow. That is much better than having to hide the antenna in an attic space. There is nothing that you can do to guarantee that your electronics will survive a direct strike. More Antenna Classics - C. It’s overall length is 53ft , and should be fed with good quality 50 Ohms coaxial cable (recommended feed length of 45 or 90 ft). In an earlier post I described how I was having SWR issues (Attic antenna ghosts)with my Alpha Delta DX-EE antenna in the attic. Coax Trap Design calculator software 5. See full list on pa0rob. But, I found very few antennas out there that met the one key requirement for ALE a resonant vertical with coverage of the 80-40-20-30-20-15-12-10 meter ham bands, without need for a tuner.
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