3 band hf
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Antennas : 80M- X80 Multi-band HF Vertical Antenna Review
- The X80 is a commercial version of a so-called Rybakov vertical antenna.
[ Hits: 1026 | Votes: 1 | Rating: 1 ]
- Mini-Whip Active Antenna
- This HF active antenna is a build of the PA0RDT Mini-Whip from a kit, it covers the entire HF band (3 to 30 MHz) and below (supposedly down to 10 kHz). It is powered by an external 12-15V supply, consuming about 50 mA.
[ Hits: 93 | Votes: 0 | Rating: 0 ]
- Broadband Dipole 2MHz o 30MHz with no ATU
- A broadband travelling wave dipole for HF bands, whose VSWR is less than 2:1 from 3 to 15 MHz and does not exceed 2.6 to 1 from 2.3 to at least 30 MHz
[ Hits: 3320 | Votes: 2 | Rating: 6 ]
- Hentenna by IW3HZX
- Hentenna plans and pictutes for HF and VHF UHF Bands in italian by IW3HZX
[ Hits: 1664 | Votes: 2 | Rating: 4.5 ]
- Dual Band Satellite Yagi
- The antenna is a VHF side is a 2m moxon, tuned on 145.825 MHz. The driven element of the moxon couples to a driven element for a 5 element 70cms Yagi, tuned on 436.5 MHz.
[ Hits: 1199 | Votes: 2 | Rating: 8.5 ]
- VHF Skeleton Slot Antenna
- The skeleton slot antenna design was developed in the UK for TV use soon after WW2. This document describe and adapted version for the 2 meter band
[ Hits: 1108 | Votes: 2 | Rating: 10 ]
- Duo band antenna for 145/435 MHz
- Dual band vhf uhf dipole antenna by DL7JV
[ Hits: 2329 | Votes: 3 | Rating: 4.33 ]
- Multi-Band VHF Vertical Aerials
- A few thoughts on Multi Band VHF Aerials by Peter Ward VK3ZAV
[ Hits: 730 | Votes: 1 | Rating: 8 ]
- 13m high elevated vertical
- This article explores the performance of an unloaded elevated vertical, base matching and feed line as a multi-band HF antenna system.
[ Hits: 1356 | Votes: 0 | Rating: 0 ]
- W3EDP HF Antenna
- G3YCC article pn the W3EDP end-fed antenna for 80 to 20 meters bands
[ Hits: 3967 | Votes: 5 | Rating: 7.2 ]
- WebSDR from Austria
- OE4RLC, OE3DUS in Allhau Austria with wire antenna and full HF amateur radio bands coverage
[ Hits: 5071 | Votes: 41 | Rating: 6.43 ]
- PM-SDR
- A new SDR-receiver from the italian SDR developers community. Low-cost, DDS-less Software Defined Radio full coverage receiver for all HF bands, used with powerful software on the PC for multi-mode operation
[ Hits: 2412 | Votes: 3 | Rating: 5.67 ]
- Yaesu FT-817 review by G3XBM
- Yaesu FT817 all band, all mode handheld transceiver article.
[ Hits: 771 | Votes: 0 | Rating: 0 ]
- Baofeng UV-3R Yahoo Group
- This group is for support and discussion of the Baofeng UV-3R micro dual band VHF/UHF radio.
[ Hits: 459 | Votes: 0 | Rating: 0 ]
- HF power amplifier using GI7B
- Gi7b is tube designed for microwaves but working good as HF amplifier. Idea is to build cheap, reliable HF amplifier covering 160 meters band.
[ Hits: 4062 | Votes: 12 | Rating: 4.92 ]
- HF Power Amplifier by CT1FMS
- An RF power Amplifier for HF bands with 3 GI-7B tubes by CT1FMS
[ Hits: 1661 | Votes: 4 | Rating: 6.25 ]
- Stub HF filter
- Multi transmitter filters for HF Bands
[ Hits: 535 | Votes: 0 | Rating: 0 ]
- Multi-Four a VXO QRP Transmitter for HF bands
- This transmitter has been designed for use on 20 30 40 and 80 m with 5W output
[ Hits: 1049 | Votes: 0 | Rating: 0 ]
- XBM80-2 An Experimental 80m CW Transceiver
- This is an experimental CW transceiver for 80m, although the same idea will work on all HF bands
[ Hits: 1180 | Votes: 2 | Rating: 5.5 ]
- A Simple QRP Transverter for 4m (70MHz)
- 70 MHz transverter, 4m band, by G3XBM
[ Hits: 890 | Votes: 1 | Rating: 2 ]
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