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Feb 12, 2018 - Low-cost home brew antennas for amateur radio. See more ideas about ham radio antenna, ham radio, radio antenna. Multiband 40 - 10 Meter Vertical Using PVC by HI3/KL7JR. Antennas,Aerials,Homebrew,DIY,M0MTJ Amateur Radio, HAM Radio,HF Radio,HF Bands,2 meters...
antenna is a necessity for MARS/SHARES operations and especially for Automatic Link Establishment (ALE) operations. As such I offer three proven antennae designs herein for consideration as effective, inexpensive and easy to install and maintain NVIS antenna types. This piece was originally written a few years back to assist my fellow NJ Army
  • Apr 11, 2010 · 4ele 10m & 6ele Duo MonoBander 20/15 (G-250 Rotator), 40m Double Bazooka, Fullsize G5RV, 40m Fullsize Rotary Dipole, Delta Loop 40m, Fishing Pole Ant. (40-10) - (all homebrew) HF Mobile Station Yaesu FT-857D + FC-30 ATU
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    BUILD THE DIPOLE. the dipole is an essential element of the YAGI antenna. He receive the wave. the impédance ( résistance in function of the frequency ) is one parameter very important. for the most popular FM TUNER receive the impédance is 75 ohms.
    Welcome to my 'Home-brew' page From time to time, it's nice to create a piece of equipment that you've made yourself. I hope to add more as time goes by and I'll also include some antenna designs that are simple, effective and easy to construct and cost only.
  • Sep 04, 2010 · Loading Coils for 160-Meter Antennas, Charles Michaels, W7XC, QST magazine, April, 1990. A detailed look at how one can relatively optimize the Q of a loading coil. Vertical Antennas, William Orr, W6SAI and Stuart Cowan, W2LX. A good source of general information on verticals, with practical designs.
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    Wire antennas are a great simple way to work 40M and 80M rather than a noisy vertical antenna that requires horizontal radials. Our 7-Band antennas are OCF (off-center-fed), with a 45 foot leg and a 90 foot leg, totaling 135 feet. With the middle at 30 feet and the ends at 10 feet the 7-Band antenna requires about 120 feet of ground space.
    multi-band antenna. 4. Stealth antennas for the loft Fig 4.2(a): You can see that when erected in a straight line the dipole is quite directional. Fig 4.3: This five-band loft-mounted antenna has been used at two locations with great results. Fig 4.2(b): But when erected as an inverted-V you gain a couple of S-points (10 - 12dB) in the ...
  • 40M Triangular Full-Wave Vertical Loop Antenna -- From W5DXP 40M/80M Trap Dipole -- From QRZ 40 Meter Delta Loop By PY4VE Via K4TX ShortyForty Dipole-- By W5VM Via K7MEM ShortyForty Dipole-- From FlashWebHost Sterba Curtain 40M-- from KB8PGW G5RV 40m Beam Antenna -- From W5DXP 40m Vertical Antenna for $10 -- From KG6IIR Verticals. 30 Meter Antennas
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    See full list on electronics-notes.com
    Following this article is a sequence of photos of a homemade 40m base loaded portable antenna made with a Buddipole 71-inch whip with the loading coil mounted inside a common marker. All you need to add to the project is a 1.5 X 1 inch PC board and a pushbutton.
  • With twice the gain of a standard J-Pole antenna, the 2 meter Slim Jim antenna is a J-Pole on steroids! The Slim is an end-fed folded dipole antenna that has a gain of 6 dbi and a nice low RF take off angle. This makes the 2 Meter Slim Jim antenna a great solution for repeater sites, data and packet stations, APRS, and even every day ...
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    The antenna was tested first using my latest acquisition, a Racal 12m mast before being mounted on the top of the house. I was testing for SWR and ability for the antenna to null out interference from next-doors plasma TV! Here is a picture of the hub with just one of the telescopic fibreglass spreaders in place. Nevada unemployment debit card faq
    Optibeam 40/30M yagi. This antenna is advertised to have Sometimes K9AY is quieter but sigs are not as loud as the yagi. Nice to have the option though and do use it at times. Seldom need the preamp but it provides
  • EH Antenna for 40 and 20 meters. Homebrew G5RV. 40 meter mini Moxon Antenna. This week I've started investigating on Inverted L antennas for low bands (160 to 40). Expecially for restricted space scenarios, like mine.
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    Lots of radio amateurs build their own verticals. Most of them tend to stick to vertical antennas with a 1/4 or 1/2 wave sizing. Just a happy few build a 5/8 wave vertical antenna. This is remarkable, since the 5/8 has the lowest angle of radiation and has about 1dB more gain (compared to 1/4 and 1/2 verticals). Fsa ela reading practice test questions grade 10 answers
    Jun 29, 2019 · Antennas, ham radio 1/4 wave vertical, 40m, Antennas, FT-8, ham radio, Homebrew Inadvertently Stress Testing a Homebrew Buddistick 2 Comments Posted by rjbono on February 7, 2018
  • Apr 10, 2016 · When run on 80m or 40m, this antenna needs no preamplifier, as long as quality feedline is used (e.g., RG-6 or RG-8X). Even though the pattern gain on 160m is nearly 15dB below that on 80m, a preamplifier still wasn't necessary for making any 160m contacts. While the preamplifier did seem to raise some of the weaker signals a bit, there were no ...
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    Notebook showing Small Magnetic Loop antenna results by cutting and testing method. I will try to explain in few words how the small magnetic loop antenna works. 1) The magnetic loop antenna is an RF transformer. The primary is the small inner loop that is 1/5 of the size of the main loop. The secondary is the main loop, and is the actual antenna. Benzedrex amazon
    Oct 14, 2015 · A Homebrew Antenna Tuner 3-30m Ok, so my goal for a long while has been to homebrew a complete station, from antenna to tuner, transmitter and receiver. I have been playing with and experimenting with lots of circuits getting my head around what works and what does not work and coming up with a design that will be usable.
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Many people can't mount a 40 meter antenna far enough away from other objects to eliminate detuning effects. See for yourself how bad this is with a 2 meter mobile station and an SWR meter--then scale things up dimensionally by a factor of 20. Thus, for proper performance, low-frequency antennas often need to be tuned in-place.
The reason it works well as an active antenna is that the coupling loop is the only part of the antenna that is actually connected to the preamplifier (the main winding/tuning become obsolete and play no part in the action of the antenna above 3MHz), so the actual antenna length used is only about 7 feet (i.e. the circumference of the loop).
The antenna system consists of a 40-10 EFHW (~60' Wire matched to a QRPGuys EFHW transformer mounted on a DIY wire winder cut from a yard sign), 5 aluminum tent pegs, 2 pieces of shock or bungee cord for tying off the antenna ends, a 25' BNC terminated RG-174 coax, and a 14-1/2 ft fiberglass fishing pole with DIY collar and guy lines.
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Apr 11, 2010 · 4ele 10m & 6ele Duo MonoBander 20/15 (G-250 Rotator), 40m Double Bazooka, Fullsize G5RV, 40m Fullsize Rotary Dipole, Delta Loop 40m, Fishing Pole Ant. (40-10) - (all homebrew) HF Mobile Station Yaesu FT-857D + FC-30 ATU
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Antennas Vertical : Click ↓ Votes ↓ Flag ↓ 4 square 40 meter, K7NV: 3_elementi_array, M0MCX: 7 band semi vertical trap antenna, VE3HKY: 1/4 Wave HF Multiband Vertical for 40 - 10 Meters: 80/40m Vertical, EI7BA: 80m full size 1/4 wave GPA, ON7EQ: A Home Brew HF Vertical From Copper Pipe: A Practical 5-Band Homebrew Wire Beam, N4KC
Corrosion makes this Continue reading The liquid HF vertical for 10m to 40m → Posted in Antenna | Tagged antenna , fluid , groundplane , hf vertical , homebrew , homemade , liquid , multiband , SteppIR , vertical
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Many say that delta loops don’t require a decent ground system. however this is a bit like saying that a vertical antenna with a single raised radial does not need a solid ground system. Loops antennas are particularly useful on 80 and 40 meters . A resonant loop antenna will have a circumference of 1 λ.

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Dec 04, 2011 · If you really need to get on 40m better than you have been in the sort of 3-10 foot antenna class, your next antenna should have a motor. Or if you're worried about feedline radiators because you can put the antenna 20 feet up on a pole, just go ahead and make the pole the antenna instead.

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Wire antennas are a great simple way to work 40M and 80M rather than a noisy vertical antenna that requires horizontal radials. Our 7-Band antennas are OCF (off-center-fed), with a 45 foot leg and a 90 foot leg, totaling 135 feet. With the middle at 30 feet and the ends at 10 feet the 7-Band antenna requires about 120 feet of ground space.

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The antenna is the most important component in a proper radio setup and those included telescoping whip antennas simply don’t perform well on the HF bands. Based on our correspondence, I know you had fun piecing together this little system using a simple bill of materials and items you had on hand during the Covid-19 quarantine. Nov 09, 2015 · One antenna that looked promising is the Cobra Antenna. This antenna is heavily advertised on QRZ.Com. There are three versions of this antenna available: a 41-ft. antenna for 40m – 6m ($99) a 73-ft. antenna for 80m – 10m ($115) a 140-ft. antenna for 160 – 10m ($125)

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