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Query: HF
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Categories
- Radio Equipment > HF Vertical Antenna > Butternut HF2V
- Manufacturers > Antennas > HF
- Radio Equipment > HF Amplifiers
- Operating Modes > HF Operations
- Radio Equipment > HF Portable Antenna
- Technical Reference > HF Radios
- Radio Equipment > HF Transceivers
- Radio Equipment > HF Vertical Antenna
- Radio Equipment > HF YAGI Antennas
- Shopping and Services > Antennas > VHF Antenna
- Technical Reference > VHF Radios
- Operating Modes > VHF UHF
- Antennas > VHF UHF
- Manufacturers > Antennas > VHF UHF Microwave
- Radio Equipment > VHF-UHF Amplifiers
- Radio Equipment > VHF-UHF Handhelds
- Radio Equipment > VHF-UHF Mobile
- Technical Reference > Amplifiers > HF Amplifiers
- Technical Reference > Amplifiers > UHF Amplifiers
- Technical Reference > Amplifiers > VHF Amplifiers
- Radio Equipment > HF Amplifiers > Acom 1000
- Operating Modes > Aircraft scatter
- Radio Equipment > HF Amplifiers > Ameritron AL-811
- Software > Beacon Monitoring
- Radio Equipment > HF Portable Antenna > Buddipole
- Radio Equipment > HF Vertical Antenna > Cushcraft R8
- Radio Equipment > HF Transceivers > Elecraft K4
- Radio Equipment > HF Transceivers > Elecraft KX2
- Manufacturers > Antennas > VHF UHF Microwave > Ground Plane Antennas
- Antennas > Handhelds
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A 5 band two element quad antenna working from 20 to 10 meters using hardware-store parts or modifying an existing commercial triband quad by KC6T -
Building an RFD antenna, a easy to build portable aerial -
This article explores the performance of an unloaded vertical as a multi-band HF antenna. -
2 x GI7B in push-pull 2m and 6m 1kW Power amplifier from PA0ZH -
A remotely tuned 80m to 10m wire vertical antenna -
A proven and practical approach to dealing with RFI from grow lights and more. -
Web based VHF-UHF RF planning powered by SPLAT! and Google Maps. Access via website, Android App or dynamic Google Earth interface. -
A scanned PDF of this interesting book on HF Dipole antennas published by Stanford Research Institute -
Here are some lengths and spacings for various direct connect beams. -
Unlocking the full multiband potential of the 225 Ohm elementary radiator in a folded monopole, dipole-like or turnstile layout, by Francesco Errante -
2m/70cm GS31B Power amplifier pictures -
Official Kenwood page about the TS-50 HF Transceiver -
VK3YE magnetic loop antenna plan that cover 7 Mhz to 20 Mhz and shortening loop can work on 21 Mhz. -
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17-Element Very High Frequency/Ultra High Frequency Log Period Dipole Array -
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A recommendation for all radio amateurs how to use the bands, as revised at the Interim Meeting Vienna 2016, effective 01 June 2016. -
Homebrew UHF VHF portable Yagi-Uda antenna design and construction notes for satellite operations -
This antenna is designed to be mounted off the side of a tower. Works on 136-153 Mhz range but also on 70 cm band -
Monthly Digital Contest Calendar, this site offer a list of scheduled ham radio digital modes contests. -
The 1721 HF Roundtable Group meets nightly on 7.261 + - QRM. Just a big ham radio family. Informal QSO'S in a rountable fashion. -
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Triband DK7ZB VHF Yagi antenna for 6 m, 4 m and 2 m with a single feedpoint -
Band Plan for HF Bands by IARU Region 1, effective 2014. -
Kurzwellenbandplane der IARU Region 1 available in german and in english -
Sometimes many VHF-UHF modern transceivers have problems with BROADCAST Interference and CROSS-modulation from FM commercial broadcast stations this article shows a simple Batteworth HI-Pass VHF Filter to reduce this problem -
40/20/10 Meter Fan Dipole attic antenna article by KD2GOE -
A complete guide to operating the weak signal modes on VHF/UHF/Microwaves. VHF Contesting honor role for the western states, rover, eme basics and vhf contesting. -
"Software uses four-tone frequency-shift keying for meteor scatter. WSJT stands for ""Weak Signal communications, by K1JT"", and plans call for the program to include more than one communication mode." -
Diplexer is a passive device, a special filter circuit that seperates 2 different bands, not to be confused with the duplexer that usually separate 2 different frequencies on the same band. -
Microwave parts for ham radio and experimenters. -
Experiments on HF antennas for restricted spaces. In this article author experiments antennas for 80-10 meters band having just a very small garden and several restrictions. Basic antennas consists of laded multiband dipoles and fan dipole antennas -
This is an experimental CW transceiver for 80m, although the same idea will work on all HF bands -
This article is designed to be an introduction to the terms and basic mechanics of propagation methods that are to be found on the HF and VHF bands. -
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 -
Using the A99 on 2 meters band -
Calculating HF helical whip antenna for mobile or portable operation -
List of european vhf uhf beacons by G4URH -
An antenna system with a difference. It is a cheap and simple to make antenna, can be built with three bamboo spreaders and wire -
XLS file with technical specifications about ham radio transceivers -
This is a two element colinear design for vertically polarized radiation. It may be constructed for use on either 2m or 70cm -
Vhfdx Chat is dedicated to the serious VHF DXer. Meet VHFDXers from all around the world, discussing EME, Meteorscatter -
This is the 195-foot tall rotating Rohn 55G tower at W8JI with yagis for 40 20 15 and 6 meter bands. -
This is a SSB and CW transceiver for the 80m and 20m bands. It produces 25 Watts out and uses a digital frequency display. -
This page contains ideas, hints and tips about Auxiliary Items that will help you to enjoy the sport of HF Contesting without emptying the bank account -
The information in this article has come from many amateur sources, the most notable was from WA6TEY (sk 1985) Ray Frost, who was a pioneer of VHF Quad designs and one of the best Southern California Transmitter Hunters. Ray built hundreds two meter quads in single and paired configurations as well as his famous mobile radio direction finding quad. -
HamShield is a powerful VHF UHF transceiver that lets your Arduino talk to far away people using ham radio bands -
ARRL review of the ICOM IC 7600 HF and 6m transceiver published on QST.
