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2021. 6. 21. &0183;&32;A high-quality wire is the requirement of almost every networking device. The reason is that the wire has to face impedance, noise, breakage, and much more. A wire must have suitable strength and resistance to high temperatures. This one is a dipole antenna with poly-stealth 13 quality wire which means that wire is inside a coated jacket that is tough and has a. Feb 23, 2018 - "Viewer request to try out an antenna for Ham Radio in the attic. Using the CQ Antennas Center Insulators from KE5FEN. Thanks David for the insulators -. Build a space efficient trapped dipole antenna for 40 -80-160 meter bands using RG-58 and PVC pipe by W8NX. VK5AH -HF 4 Bander dipole. A multiband 80- 40 -20-15 meters dipole wire. love for the lymph. st joseph parish staff. warcraft logs tbc classic 2020 hoyt powermax ddr a20 simfiles. dark thunder hybrid. Dipole antennas are great for attic installation and if this is the way you choose to go, you should probably purchase a great dipole antenna. There are different designs that you can choose from depending on how your attic is. See some suitable antenna on Amazon here 2. Keep the antenna away from interference. Two antennas in my attic FM yagi works quite well, and VHF-UHF hybrid does a real good job too, even at 60 miles in deep fringe. The FM has a Magnum Dynalab Signal. The Dipole Antenna 101 has all the information you need. Reviews; Blog; . You can make one in the attic or roof space with minimal cost. These antennas are perfect for internal areas of the house that have no access to an outside signal like attics. They may also be used when there is suddenly a temporary demand for more coverage on-site such.

. 2022. 3. 11. &0183;&32;Attic dipole antenna constructed of 12ga braided wire, a DX Engineering 11 balun, DX Engineering dipole mounting kit. Part 1 shows the antenna placement in the attic and. Here&39;s a guy that operates with a 102&39; G5RV at 18&39; - and a half-wave vertical dipole in a side-yard tree - about 20&39; at the TOP of the antenna - covering 10m. At one point that G5RV was laying on top of a hedge row. John averages more than 10K QSO per year running barefoot. He&39;s got about 10 variations of DXCC on his LotW page.. 2012. 2. 9. &0183;&32;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. 4x8 plastic plywood sheets; News; gronk meaning; why are some disney vhs so expensive; vue multi word component names; 52 dodge truck for sale; car accidents usa; the sims updater; dollar general lawsuit 2021; beatles spectral stereo download; twilight fanfiction edward human bella pregnant married. Dec 24, 2015 Dipole antenna balun center The dipole antenna I installed was cut roughly for 20m (14MHz) but the final tuning has not yet been performed, allowing for optimization for the in-situ configuration. To facilitate installation, tuning, and future maintenance, the antenna supports were chosen to be ring-eyed lag bolts with pulleys attached..

The antenna is basically an ordinary dipole, but rather than keeping it horizontal, a single mast or anchor point is used in the centre and the two halves of the dipole are angled downwards away from the central mast. Although it does alter the radiation pattern, making it almost omni-directional, its basic operation remains the same.. Indoor, or attic, antennas have several advantages (1) no rain, no corrosion, no wind damage, (2) little possibility of lightning strike, (3) no problems with property association communists, and (4) no need for trees or other external supports. It&x27;s possible to make a multiwire dipole out of 4 or 5 conductor TV antanna rotator cable. 2013. 4. 27. &0183;&32;The graph to the right shows roughly my planned layout of the antenna, with the double blue line representing the feed line, the orange being the longer dipole, and the green the shorter dipole. The blue area is the larger. Dec 29, 2018 MFJ-1836 and MFJ-1836H. MFJ has created a set of 12-wave dipole antennas folded into a square (sort of a cobweb antenna). There are two units that cover 10m-20m. They are the MFJ-1836 (229.95) that handles power up to 300 W, and the MFJ-1836H (259.95) that handles up to 1.5 kW. These antennas are roughly 12-feet as measured diagonally across .. 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. Restrictive Covenants.

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Feb 02, 2019 &183; Hook up the CB antenna , and make sure that the standing wave is correct. 200mhz 28mhz,l but reads 4. Tram 1120. fm22 wonderkids cheap. how to connect react js with sql server database. per optic ads sensitivity apex ps4 diy car amplifier ikea tray organizer. mackie slider. pwcs teacher salary. The advantages of these antennas are directional, good front-to-back, and smaller than a Yagi. With the tips of the driven element and reflector bent to nearly touch, it squeezes the width of the antenna into a much smaller space. I've posted a 15-meter Moxon video too. The Par Electronics Stressed Moxon brings this compact design to six meters. The Invertd-V antenna is a center-fed dipole antenna with the feed-point that is at the highest point of the structure. From this central feed-point location, the. Some antenna's have a built-in preamp. Attic Outside 5 - 11 High Gain 30 - 60 60&176; - 90&176; moderate Outside 11. From Long wire to Yagi. The simplest and the most performing HF (and low bands) antenna is the long wire or Beverage. This one is made of 15 meters of thin RG-8 coaxial cable tight 6m high in the NE-SW direction. House side, it is terminated with a 91 balun linked to a RG-58U coax to the transceiver equipped with an internal antenna tuner. This item MLA-30 Loop Antenna Active Receiving Antenna 100kHz - 30MHz for Short Wave Radio 48.79 SMA-UHF RF Connectors Kit SMA to UHF PL259 SO239 4 Type Set SMA JackPlug to UHF Nickel Gold Plated Test Converter Pack of 4 9.99 DHT Electronics Handheld Antenna Cable SMA Male to UHF SO-239 Female Connectors 6&x27;&x27; Pack of 2 6.50 ham active antenna.

Figure 1

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Here is the layout of the wires. It is a full-size 40 meter dipole that is folded back upon itself so that it will fit in the attic space. I trimmed the length for low SWR. It covers the whole 40 meter band with SWR under 21. The construction is 14 guage insulated stranded wire from Home Depot, suspended by TV antenna lead-in eye screws. Indoor, or attic, antennas have several advantages (1) no rain, no corrosion, no wind damage, (2) little possibility of lightning strike, (3) no problems with property association communists, and (4) no need for trees or other external supports. It&x27;s possible to make a multiwire dipole out of 4 or 5 conductor TV antanna rotator cable. A dipole in the attic of your home is a good idea if you have enough space in your attic to place one. Folded dipole antennas will work great if you do not have a metal roof. 6. Select the wire you want to use. Dipole antennas often are the easiest to build, and then turned into inverted V antennas by raising the center of the antennas up. T he vertical is a popular antenna among hams who lack the space for a beam or long wire antennas. In an electrical sense, a vertical is a dipole with half of its length buried in the ground or mirrored in its counterpoise system. Verticals are commonly installed at ground level, although you can also place a vertical on the roof of a building..

2020. 10. 25. &0183;&32;Fan dipole or Multi-band wire antenna is one in which multiple dipoles are connected with a common feed line, and they are spread out like a fan hence it is called a fan dipole antenna. As the name implies that the form. Dipole antenna balun center The dipole antenna I installed was cut roughly for 20m (14MHz) but the final tuning has not yet been performed, allowing for optimization for the in-situ configuration. To facilitate installation, tuning, and future maintenance, the antenna supports were chosen to be ring-eyed lag bolts with pulleys attached. An antenna in a second story attic probably will work about the same as a typical dipole put up outside. Small Vhf and Uhf beams work well too. Short antennas require 8 wire for the antenna, heavy duty size open wire, and a very good tuner will produce good results. Try a dipole. My first CB antenna was a Antron 99 which I haphazardly mounted on top of a 75 foot cedar tree after making a death defying climb. I was 16 years old at the time. After attending college, getting married and moving into a small basement apartment the CB bug really bit me again. I pulled out my old Realistic TRC-434 40 channel AM .. 2015. 8. 23. &0183;&32;I have RF in my Attic (I used to have bats) Ladder line fed Dipole in attic. Some local QRP folks known as the Knightlites meet regularly on 3.574MHz They meet on 80m so that nearby folks can participate via skywave effect of. After setting up the 40 meter dipole, I decided to add WARC band coverage to my antenna suite. 12 meter and 17 meter dipoles were added to the 40 meter dipole. Thus, in this limited attic. 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. Restrictive Covenants.

Figure 2

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Mar 03, 2021 Made from sturdy materials including solid aluminum and a waterproof dipole box, this antenna is designed to resist the elements even in a non-weatherproofed attic, so it can continue to provide your household with free access to TV channels for a long time.. An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40 , and 80 Meters John DeGood, NU3E nu3earrl.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. Figure 8 The KGI825 is a quarter-wavelength dipole antenna with 2 dB gain and a center frequency of 851 MHz. Image source PulseLarsen Antennas) The KGI825 can handle up to 60 watts of transmit power and offers convenient magnetic mounting inside a window between 0.138 and 0.158 inches thick (3.5 to 4 millimeters). 2017. 5. 12. &0183;&32;OF8STN is the BBTD. OH8STN is the loop. in regards to range, the loop is definitely down an average of 400km under the dipole. This should not be surprising as were using half.

A dipole antenna is a type of RF antenna that includes two conductive elements like wires or rods where the metal wire length is half of the highest wavelength approximately in free space at the operation of frequency. At the center of the antenna, the conductive materials are separated through an insulator which is called an antenna section.. From Long wire to Yagi. The simplest and the most performing HF (and low bands) antenna is the long wire or Beverage. This one is made of 15 meters of thin RG-8 coaxial cable tight 6m high in the NE-SW direction. House side, it is terminated with a 91 balun linked to a RG-58U coax to the transceiver equipped with an internal antenna tuner. Figure 8 The KGI825 is a quarter-wavelength dipole antenna with 2 dB gain and a center frequency of 851 MHz. Image source PulseLarsen Antennas) The KGI825 can handle up to 60 watts of transmit power and offers convenient magnetic mounting inside a window between 0.138 and 0.158 inches thick (3.5 to 4 millimeters). T he vertical is a popular antenna among hams who lack the space for a beam or long wire antennas. In an electrical sense, a vertical is a dipole with half of its length buried in the ground or mirrored in its counterpoise system. Verticals are commonly installed at ground level, although you can also place a vertical on the roof of a building.. Dipole Antenna Working & Its Applications. The antenna is a communication, used to transmit & receive signals to represent some information. The first antenna was invented by Germans in the year 1888 and used for wireless communication purposes. These antennas can broadcast both microwave & radio signals..

Put as much wire in your attic as you can run in the shape of a loop. Establish the feedpoint as high as possible. Use heavy gauge wire to minimize losses. I am soon to replace my smaller gauge wire with 8 speaker wire. Try to stand the antenna wire off from the rafters at least by a few inches. I used the longer of the two stand-offs that RS. A dipole a quarter wavelength above ground provides mostly high angle radiation without that null. Any lowering of the dipole antenna below 18 wavelength does not help short range communications, since ground loss increases. Of course, at 160 meters, 125 feet is a quarter wavelength, and such a tower structure is beyond my reach financially. Stealth AtticOutdoor Mount Amplified TV Antenna Bar Directional Outdoor HD; UHF; VHF TV Antenna. Model 34560. Find My Store. for pricing and availability. 24. Winegard. Elite 360 High-Band VHSUHF Amplified Omnidirectional Outdoor HDTV Antenna. Model WGDMS6000D. Find My Store. Try a dipole. My first CB antenna was a Antron 99 which I haphazardly mounted on top of a 75 foot cedar tree after making a death defying climb. I was 16 years old at the time. After attending college, getting married and moving into a small basement apartment the CB bug really bit me again. I pulled out my old Realistic TRC-434 40 channel AM.

Build a space efficient trapped dipole antenna for 40 -80-160 meter bands using RG-58 and PVC pipe by W8NX. VK5AH -HF 4 Bander dipole. A multiband 80- 40 -20-15 meters dipole wire. love for the lymph. st joseph parish staff. warcraft logs tbc classic 2020 hoyt powermax ddr a20 simfiles. dark thunder hybrid. Indoor Antenna Most Popular Coaxial-Cable Trap Dipole 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. Roofspace Antennas. You can find mounts for this setup pretty cheap on eBay and online CB stores. Basically it's one antenna hooked to the coax, and the other one is 180 degrees opposite it,. Verticals. T he vertical is a popular antenna among hams who lack the space for a beam or long wire antennas. In an electrical sense, a vertical is a dipole with half of its length buried in the ground or "mirrored" in its counterpoise system. Verticals are commonly installed at ground level, although you can also place a vertical on the.

It&x27;s simple and easily built. Roughly 9 feet from tip to tip, it can fit almost anywhere. It is horizontally polarized, which purportedly is best for VHF DX. And, it works. My write-up on my efforts at Six Meter Dipole has been the post with the most traffic on this website since it was published in 2014. So it must be a popular option as well. Attic antennas are also called outdoor antennas, so don&x27;t confuse the two. Finding the right TV antenna can be a challenge. Made using sturdy materials like solid aluminum and a waterproof dipole box, and this TV antenna can withstand harsh weather. Pre-assembled antenna components make it exceptionally easy to install. 2. ClearStream 2V. Vertical HF whip antenna for 20 or 40 metres. 1020 metre Yagi in the attic. 40 metre loaded dipole. Multi-band Inverted L antenna. Make a rotating VHFUHF HAM SAT antenna array.. Mar 17, 2020 It is an effective antenna for short-wave listeners (SWL) and amateur radio enthusiasts (HAM). Can receive medium-wave and short-wave in limited living areas. Excellent directionality can help reduce noise and improve SNR ratio. Can dig out weak signals that are overwhelmed by noise when conventional antennas are received.. Indoor, or attic, antennas have several advantages (1) no rain, no corrosion, no wind damage, (2) little possibility of lightning strike, (3) no problems with property association communists, and (4) no need for trees or other external supports. It&x27;s possible to make a multiwire dipole out of 4 or 5 conductor TV antanna rotator cable. The first antenna was a simple Zigzag dipole which I fastened to the roof spars using electric fence insulators. Previous experiences with indoor antennas had demonstrated to me that its a good idea not to fasten antenna wires directly to any structure. The efficiency improves with 30cm or more. 2013. 10. 9. &0183;&32;An 18ft Solarcon A99 was out of the question. After doing some research, I learned that a dipole antenna mounted in my attic might do the trick. About this same time, I came across John's article on Hamuniverse.com. Mar 17, 2020 It is an effective antenna for short-wave listeners (SWL) and amateur radio enthusiasts (HAM). Can receive medium-wave and short-wave in limited living areas. Excellent directionality can help reduce noise and improve SNR ratio. Can dig out weak signals that are overwhelmed by noise when conventional antennas are received..

One solution to the HOACC&R antenna issue is the installation of an attic antenna. In this video, Michael Martens (KB9VBR) and Joe (KD9CJX) explore several attic antennas that can keep you on the air. Ham Radio 4080160 Meter Inverted V Dipole Antenna; Ham Radio Antennas For Beginners-Build Your Own Today; HAM RADIO Your First HF Antenna;. Slinky Antenna. A Slinky is a toy and a science class tool made from a flexible 90 turn spring coil with a diameter of 2 34 inches. Each Slinky coil contains approximately 67 feet of spring steel wire and weighs about pound. When a Slinky is compressed, it is only 2 34" long, but it can be stretched into a helix as long as 15 feet in. Short Antennas "Loaded" Dipole. All-Band OCFD. HOA HF Vertical. NVIS dipole. 10M Antenna. 160M End-Fed. 160M Windom. Carolina Windom. HF Vertical. HF Military. Design Software. Antenna Calculator. Homemade Ant . The Sloper. SWL Antenna. Attic SWL Antenna. SWL Active Loop. Homebrew Tuner. Towers. Jan 15, 2010 A wire dipole inside the attic should be suspended away from any object in a free space with a non-conductivenon metallic string or cord for optimal results. Additionally, house wiring and large metal objects around it - or at the same height - may affect overall performance and cause some problems tuning the SWR as well. sandpiperx Member. 2018. 1. 24. &0183;&32;Indoor Attic Dipole Antenna for Ham Radio & CQ Antennas Center Insulators. Posted date January 24, 2018 in Antenna No Comments. Viewer request to try out an antenna for Ham Radio in the attic. Using the CQ.

Figure 3

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Dipoles - K4VRC Dipole Antennas Do not forget the dipole antenna for a single and multi-band use. It is possible to install a tuner in the attic and bring coaxial cable down from the antenna system to your station for a 11 SWR on all Bands. Dipole Lengths (12 wave antenna) 468 Feet freq (MHZ) Band MHz Length 10 28.4 16&x27; 6" 15 21.1 22&x27; 2".

About Attic 30 m dipole antenna The resource is currently listed in dxzone.com in 2 categories. The main category is 30 meter antennas that is about Antenna Projects for the 10 MHz - 30. The first antenna was a simple Zigzag dipole which I fastened to the roof spars using electric fence insulators. Previous experiences with indoor antennas had demonstrated to me that its a good idea not to fasten antenna wires directly to any structure. The efficiency improves with 30cm or more. The 40 meter dipole was loaded with some coils so that I could fit it in the attic. It gave me 40, 20 and 15 with a push because although a 40 meter dipole should give you a resonant 15 meter antenna, in this case with the coils for 40 it mucked the maths up and caused the ATU some trouble. On 40m, it worked a treat.. Try a dipole. My first CB antenna was a Antron 99 which I haphazardly mounted on top of a 75 foot cedar tree after making a death defying climb. I was 16 years old at the time. After attending college, getting married and moving into a small basement apartment the CB bug really bit me again. I pulled out my old Realistic TRC-434 40 channel AM. Dipoles - K4VRC Dipole Antennas Do not forget the dipole antenna for a single and multi-band use. It is possible to install a tuner in the attic and bring coaxial cable down from the antenna system to your station for a 11 SWR on all Bands. Dipole Lengths (12 wave antenna) 468 Feet freq (MHZ) Band MHz Length 10 28.4 16&x27; 6" 15 21.1 22&x27; 2". It&x27;s important that this mount be attached to the top antenna in a vertical dipole scenario. You&x27;ll want your coax to attach to the top antenna. It&x27;s also very important that the plastic insulatorspacer goes between the bracket and the actual mount that the antenna will thread into. This will isolate the antenna from the bracket.

Dec 18, 2018 Post 1715. Radio amateurs worldwide are facing more restrictions on their antenna building projects. Whether it&39;s deed-restricted (HOACC&R) properties or the lack of space for erecting full-sized HF antennas, hams are turning to a variety of experimental and unusual antenna systems to transmit their signals. In this video from Julian (OH8STN .. Since the radiation from this antenna is unlikely to load, by any great amount, into the network of wires, electrical conduits, etc., that are usually found in one&x27;s attic, this could prove to be the best little attic dipole ever, as very little of its radiated energy should get absorbed by its environment. Description. 20 m Dipole antennas Most Popular Trapped dipole for 40-80-160 meters Build a space efficient trapped dipole antenna for 40-80-160 meter bands using RG-58 and PVC pipe by W8NX Wire antenna The 4 Special all band wire antenna VK5AH -HF 4 Bander dipole A multiband 80-40-20-15 meters dipole wire antenna that can be extended to cover 160 meters too.. The antenna is basically an ordinary dipole, but rather than keeping it horizontal, a single mast or anchor point is used in the centre and the two halves of the dipole are angled downwards away from the central mast. Although it does alter the radiation pattern, making it almost omni-directional, its basic operation remains the same.. . Product Description. Frequency Devices 11 M Half Wave Dipole Antenna with Balun - Ready to Hang The Frequency Devices Half Wave Center Fed Dipole antenna with Balun is tuned to 27.2 MHz (11 Meters). It uses 14 722 stranded hard-drawn copper wire to meet the requirements of the National Electrical Code and have the best radiation efficiency..

Figure 4

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2013. 9. 16. &0183;&32;The nested dipole attic antenna I now use is a 40m dipole bent into a square and a 20m and 10m wire added below them. A rough drawing is shown below. I make use of the 40m dipole on 15m with some good results. So far the best DX is KP4 on 15m at just 5w SSB.

Oct 12, 2020 The half-wave dipole is the basis of comparison for antennas. Mobile whip antennas for HF are usually less than 20 percent efficient. However many apartment dwellers have operated using whips installed on their balconies. Magnetic loop antennas of 1 to 3 meter diameters have been used successfully even they are about 40 to 60 percent efficient.. . The antenna is basically an ordinary dipole, but rather than keeping it horizontal, a single mast or anchor point is used in the centre and the two halves of the dipole are angled downwards away from the central mast. Although it does alter the radiation pattern, making it almost omni-directional, its basic operation remains the same..

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1. We start with bending the ends of an ordinary center-fed dipole limited by an attic, garden, wall, etc. or to reduce turning radius. Then folding the ends back part way or into triangles. We then look at bending a dipole in the middle. up and down, side to side. to form V or L-type configurations. See illustrations of all eleven studies at Center-fed Dipoles. 2022. 8. 29. &0183;&32;Loft & Attic antennas for restricted spaces . antenna than when the Zigzag dipole was under test. I decided to perform some gain tests using WSPR. First I modelled all the. Slinky Antenna. A Slinky is a toy and a science class tool made from a flexible 90 turn spring coil with a diameter of 2 34 inches. Each Slinky coil contains approximately 67 feet of spring steel wire and weighs about pound. When a Slinky is compressed, it is only 2 34" long, but it can be stretched into a helix as long as 15 feet in. This item MLA-30 Loop Antenna Active Receiving Antenna 100kHz - 30MHz for Short Wave Radio 48.79 SMA-UHF RF Connectors Kit SMA to UHF PL259 SO239 4 Type Set SMA JackPlug to UHF Nickel Gold Plated Test Converter Pack of 4 9.99 DHT Electronics Handheld Antenna Cable SMA Male to UHF SO-239 Female Connectors 6&x27;&x27; Pack of 2 6.50 ham active antenna. Dipole Antenna Design. A dipole antenna includes two conductive elements like wires and rods or wires where the feeder at the center & radiating sections of the antenna are on either side..

2018. 1. 24. &0183;&32;Indoor Attic Dipole Antenna for Ham Radio & CQ Antennas Center Insulators. Posted date January 24, 2018 in Antenna No Comments. Viewer request to try out an antenna for Ham Radio in the attic. Using the CQ. Dipole antennas are great for attic installation and if this is the way you choose to go, you should probably purchase a great dipole antenna. There are different designs that you can choose from depending on how your attic is. See some suitable antenna on Amazon here 2. Keep the antenna away from interference. The first antenna was a simple Zigzag dipole which I fastened to the roof spars using electric fence insulators. Previous experiences with indoor antennas had demonstrated to me that its a good idea not to fasten antenna wires directly to any structure. The efficiency improves with 30cm or more.

Unemployment benefits in Brazil cover, on average, about 80 of former earnings and last three to five months. While benefits are being paid, men eligible and ineligible for UI are equally likely to commit domestic violence. Once benefits expire, eligible men are more likely to commit violence. Dipole Antenna Design. A dipole antenna includes two conductive elements like wires and rods or wires where the feeder at the center & radiating sections of the antenna are on either side.. Jun 24, 2020 Dipole and long wire antennas can also be used with mobileoutdoor style auto-tuners feeding them in an attic space. Another local uses an HF loop antenna tacked up around the circumference of the ceiling of a second-floor bedroom. With his antenna matching unit providing an acceptable match, hes on the air making contacts..

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