3 band hf

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3 band hf

216 links - and 1 categories

Antennas : 80M Antennas : Active
  • 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 ]
Antennas : Dipole
  • 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 ]
Antennas : Hentenna
  • Hentenna by IW3HZX - Hentenna plans and pictutes for HF and VHF UHF Bands in italian by IW3HZX
    [ Hits: 1664 | Votes: 2 | Rating: 4.5 ]
Antennas : Satellite
  • 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 ]
Antennas : Skeleton Slot
  • 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 ]
Antennas : VHF UHF Antennas : Vertical
  • 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 ]
Antennas : W3EDP
  • W3EDP HF Antenna - G3YCC article pn the W3EDP end-fed antenna for 80 to 20 meters bands
    [ Hits: 3967 | Votes: 5 | Rating: 7.2 ]
Internet and Radio : WebSDR
  • 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 ]
Manufacturers : Software Defined Radio
  • 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 ]
Radio Equipment : HF Transceivers : Yaesu FT-817 Radio Equipment : VHF-UHF Handhelds : Baofeng UV-3R
  • 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 ]
Technical Reference : Amplifiers : HF Amplifiers
  • 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 ]
Technical Reference : Filters
  • Stub HF filter - Multi transmitter filters for HF Bands
    [ Hits: 535 | Votes: 0 | Rating: 0 ]
Technical Reference : QRP Projects Technical Reference : QRP Projects : QRP CW Transceiver Technical Reference : Transverters

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