antenna long138 links - and 1 categories
Antennas : 2M
- Hybrid LFA Yagi Oblong antennas
- A project for a 144 MHz hybrid LFA - Oblong yagi antenna made based on YU7XL design by G1HZN
[ Hits: 642 | Votes: 0 | Rating: 0.00 ]
- Mini Whip Antenna
- A shortwave active antenna, riginally designed for long wave and medium wave reception, but that works well all the way up through the shortwave bands based on the PA0RDT design
[ Hits: 416 | Votes: 1 | Rating: 10.00 ]
- 9:1 Voltage Unun
- A 9:1 voltage unun using a T-200-2 powdered iron toroid core to feed a long wire multiband antenna.
[ Hits: 1005 | Votes: 3 | Rating: 5.33 ]
- Compact fan dipole for 40 30 and 20 meters band
- An homemade fan dipole antenna for 20 30 40 meter bands, setup in a 15 meter wide garden. The longest leg for 40 meter is folded to fit in the 7.5 m
[ Hits: 403 | Votes: 0 | Rating: 0.00 ]
- End Fed Long Wire Antenna
- The antenna is an inexpensive, multiband, end fed HF antenna. It has a matching network consisting of a toroid core and an antenna lead of 30
[ Hits: 1675 | Votes: 1 | Rating: 1.00 ]
- Shortened EFHW Antenna 80-10m
- A shortened multiband antenna, about 23m long, for 80m - 10m bands with a low SWR (<1.3) on 80m and 40m, and <3 till 10m. Bandwith on 80m is 300kHz
[ Hits: 928 | Votes: 0 | Rating: 0.00 ]
- 20 thru 10 Meter Fan Dipole
- The 20 thru 10 meter dipole is constructed from #10 stranded insulated wire available in most hardware stores.
The feedpoint uses an 8 inch long section of 2 inch diameter PVC pipe. A section of wire joins the elements at either side of the feedpoint to avoid the inductance of square knots that I use on lower frequencies by W1TR
[ Hits: 1584 | Votes: 3 | Rating: 4.33 ]
- Multiband Dipole
- A long article on multiband dipole, with an overview on designing this wire antenna, and planning a robust installation and proper feed line
[ Hits: 1034 | Votes: 3 | Rating: 7.00 ]
- Pennant Loop adventures
- Experimenting with pennant loop antennas article by Jedd Smith, includes layout ideas, modeling and design along to some pictures
[ Hits: 294 | Votes: 4 | Rating: 7.00 ]
- Portable link dipole
- A lightweight inverted vee antenna that can be supported by a 10 metre long fiberglass squid pole. The antenna is designed to cover 10, 15, 20, 40 and 80 m bands.
[ Hits: 1364 | Votes: 1 | Rating: 5.00 ]
- Curtain Antenna
- An antenna for shortwave radio broadcasting consisting of rows and columns of dipoles, is a high gain directional antenna, designed for medium and long range communications.
[ Hits: 539 | Votes: 0 | Rating: 0.00 ]
- RF Measurement on W3EDP antenna
- RF Current measurements on a Long Wire W3EDP antenna
[ Hits: 438 | Votes: 1 | Rating: 1.00 ]
- Electrically Small Antennas 2016
- An antenna system is electrically small if it's enclosing sphere is <λ/2π. So a 10m band antenna of under 1.6m long qualifies.
[ Hits: 297 | Votes: 0 | Rating: 0.00 ]
- Off-center Fed Windom Antenna with Vertical Radiator
- 80 to 6 meters, 2 KW, designed to be used at heights of only 25 to 45 feet, includes a twenty foot long vertical radiator
[ Hits: 530 | Votes: 1 | Rating: 9.00 ]
- 5 element wire Yagi antenna for 20 m
- A 5 element wide spaced yagi for the 20m long path to Europe was installed at ZL6QH, the antenna is fed with a 600 ohm open wire feed line.
[ Hits: 671 | Votes: 0 | Rating: 0.00 ]
- Some Useful ZS6BKW Modifications
- The ZS6BKW antenna evolved from an optimization of the G5RV antenna. The SWR on 80m is too high and the 40 ft ladder line matching section is a little too long on 17m and a little too short on 10m
[ Hits: 368 | Votes: 0 | Rating: 0.00 ]
- Broadband Power Technology
- Active Receiving Antennas, designed for reception of shortwave, mediumwave and longwave signals and VHF/UHF signals
[ Hits: 187 | Votes: 0 | Rating: 0.00 ]
- Mod for Acom 1000 amplifier
- The problem originates by improper TXOUT-to-RF timing (RF transmission exists still after a TX-EN prohibition), combined by too long decay of their CW pulses.
[ Hits: 180 | Votes: 0 | Rating: 0.00 ]
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