Search Results for "2 m antenna"1671 links - and 10 categories
Antennas : 20M
- Cedevita-20 Antenna
- The Cedevita-20 is a hybrid monoband antenna, the result of merging the radiator of a shortened vertical with one element of a dipole. It fits on most balconies and must be hung from the ceiling.
By ik1zyw Paolo Cravero
[ Hits: 5091 | Votes: 3 | Rating: 5.33 ]
- QM7 7 elements 144 MHz Yagi-Uda Antenna
- The QM7 antenna is a simple 7 elements Yagi with 3.70 m boom length for the lower 144 MHz SSB/MGM band, used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 11.35 dBd; i.e. 13.5 dB forward gain over the isotropic radiator, while the F/R is about 12.5 dB
[ Hits: 5165 | Votes: 15 | Rating: 5.27 ]
- 8 Element Quad for 145 Mhz
- 8 elements quad antenna for 2 meters band, centered on 145 Mhz
[ Hits: 27930 | Votes: 96 | Rating: 5.96 ]
- A portable 2-element VHF yagi
- Build a portable VHF yagi antenna for 2 meters. All you need is two rabbit ear antennas from Radio Shack, two CATV baluns, four feet of 3/4 CPVC pipe with one tee.
[ Hits: 26938 | Votes: 22 | Rating: 7.23 ]
- PA0NHC 80/40mtrs dipole antenna
- Dipole antenna for 80 to 20 mtrs with END-coax feed by PA0NHC
[ Hits: 6748 | Votes: 7 | Rating: 7.43 ]
- Mobile Helix Antennas for HF
- Normal mode helix antennas for HF mobile. Photos andn plan for a 20 meters mobile helix antenna by N2MH
[ Hits: 12940 | Votes: 13 | Rating: 7.99 ]
- Copper J-Pole Antennas
- Conejo Valley Amateur Radio Club, article edited by Rory Eikland, KG6HCU and Ken Larson, KJ6RZ, they have had excellent experience building and using J-Pole antennas, and share their experience on planning VHF and UHF Jpole antennas.
[ Hits: 12156 | Votes: 14 | Rating: 7.50 ]
- Thinking about Ideal Loops
- Loop antennae have been used from ELF to UHF since the beginning of radiocommunications. At low frequencies, the main problem for loop antennae is to have enough sensitivity; the antenna being very small respect to the wavelength the collected energy is also small. To increase the output level the loop may be made resonant, so loosing it%u2019s intrinsic aperiodic characteristics.
[ Hits: 1906 | Votes: 0 | Rating: 0.00 ]
- The two foot loop Antenna
- two foot AM loop antenna
[ Hits: 3258 | Votes: 1 | Rating: 8.00 ]
- Effective HF Mobile Antennas
- Effective HF Mobile Antennas Keith WB2VUO, explains difficulties on gaining antennas efficiency on lower bands with mobile antennas.
[ Hits: 7619 | Votes: 4 | Rating: 6.75 ]
- A Magnetic Loop antenna for 7-21 mhz
- If you find external wire antennas obtrusive for amateur radio or short wave listening, then this is the antenna for you, is just 1 meter diameter
[ Hits: 3467 | Votes: 2 | Rating: 5.50 ]
- The 5 Bands Wire-Beam
- This wire-beam has one radiator-element, feeded with 450-Ohm-Wireman-twinlead and needs an antenna-tuner. For the bands 6m, 10m, 12m, 15m, 17m and 20m bended reflector-elements are used.
The support is a cross of 4 fibreglass-fishing-rods
[ Hits: 5490 | Votes: 2 | Rating: 7.00 ]
- Travel loop antennas
- PA11019 Travel loop antennas, these antennas cover 6.300 to 29.200 mHz , handle 35 Watts and have a packing size of 43 cm, ideal for fieldwork, or mobile operations.
[ Hits: 3405 | Votes: 1 | Rating: 9.00 ]
- Quad and ModQuad Antenna
- Some thoughts on a "hardware-store special" 2-meter quad, and a modified quad for 2 or 10 meters by K3MT
[ Hits: 6939 | Votes: 5 | Rating: 6.20 ]
- Understanding Standing Wave Ratios SWR
- We worry a lot about Standing Wave Ratio (SWR) in amateur radio since SWR is one indication of how well our antenna system is working. Most HF transceivers and antenna tuners have built in SWR meters. SWR is a measure of a transceiver'
s output power verses the portion of that power reflected by the antenna system
[ Hits: 8208 | Votes: 8 | Rating: 4.75 ]
- Antennas basics
- An antenna study guide by NZART, cover basic topics like dipoles, wave lenght calculation, baluns, beams, dummy loads, and measurements.
[ Hits: 23868 | Votes: 14 | Rating: 8.21 ]
- GAP Titan DX performance test
- GAP Titan DX Evaluation, antenna for 10m 15m 20m 40m 80m
[ Hits: 13544 | Votes: 17 | Rating: 5.59 ]
- IC-PCR 1000 in Germany on-line receiver
- Icom PCR 1000 HF/VHF/UHF Antenna VHF/UHF Diamond X 50N HF W3D22 80m/40m 34m (111,54 feet) long based in Germany Hamburg JO43XO.
[ Hits: 6207 | Votes: 44 | Rating: 3.04 ]
- Telewave's innovative engineering produces the industry's toughest antenna systems. Yagi, Fiberglass Collinear, and Dipole models are available from 66-2500 MHz. Wattmeters, test equipment,rf power meters, duplexers, filters and cavities, transmitters combiners
[ Hits: 1707 | Votes: 0 | Rating: 0.00 ]
- W2LJ's QRP Amateur Radio
- Dedicated to QRP, Morse Code and operating in the great outdoors, this pages contains a description of a CW QRP portable set, also some stuff on the Buddipole and PAC-12 antenna systems.
[ Hits: 2338 | Votes: 4 | Rating: 9.00 ]
2 m antenna
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