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This walkie is sold without the wide band receiver enabled, this is, only 144 and 432 MHz band

This RF probe circuit allows RF to be measured in the presence of DC

Measuring antenna current with and RF Ammeter

A page dedicated to the Morse Code contact procedure

F2CW-ZL3CW African DXpedition Log Search Page

Design a 50MHz long-yagi antenna by PA3FGA

Construction of OZ2M 70 MHz transverter

NRSC AM bandwidth measurements with the loop antenna

NHRC-2 Based Repeater Controller A perfect controller for a simple repeater or link, or portable/solar powered system.

Integrated PSK station for 80 & 20 meters without using a PC Pictures and diagrams by N2APB

A Tape Measure Beam Antenna for Radio Direction Finding based on WB2HOL design.

FTDX 5000 product page with related accessories

Kenwood TM-201/401 Increased TX Audio, mod for microphone gain

Amadeus is a very powerful sound recorder and editor for Apple MacOS. Available in Lite and Pro version, is intuitive and a support many sound formats.

The CAT and audio interface version 3 project by PA5CA presents a comprehensive solution for integrating amateur radio transceivers with computer sound cards, facilitating digital mode operation and CAT control. It includes detailed schematics for the interface circuitry, illustrating the isolation transformers for audio paths and optocouplers for CAT data lines, ensuring robust electrical separation between radio and PC. The resource also provides PCB layouts, enabling constructors to fabricate their own boards for this specific design. The project outlines the component selection and assembly process, emphasizing the use of readily available parts to build a reliable interface. It addresses common challenges in sound card interfacing, such as ground loops and RF interference, through its isolated design. This construction guide offers practical insights into building a functional interface, making it suitable for hams interested in DIY radio accessories for digital modes like FT8, RTTY, and PSK31.

Interfacing the IC706MKIIG for Soundcard & TNC modes

4 Square K9AY Array project for 80 and 40 meters band

KD0SO receiving loop for 160 meters

OZ9FW CDG2000 High-end transceiver homebrew project

By Radio Amateurs of Northern Vermont

IV3GFN beacon for six meters band

This simple project, based on the orginal CobWebb-Antenna model, is about an horizontally polarized, omi-directional antenna for the six meter band.

Multi language contest log program for 9A VHF UHF contest. Freeware for Windows

Industry Canada is pleased to introduce an exam generator software package to facilitate the amateur examination process that our accredited examiners have taken on our behalf.

G4ILO article page on an optional Elekraft K3 Pan Adapter solution

Find QSL managers using various QSL databases

Spanish only website with mail list and meteor showers reports.

RF/Microwave Simulator for Puppy Linux by WN2A

Dave N9EWO's view's and comments on the Vertex-Standard-Yaesu (V-S-Y) VX-2R also compared to the Icom IC-P7A

An article describing how to homebew a VHF 4 elements Yagi antenna.

A review of portable SOTA equipment used by G4ISJ

For a lightweight portable station, all you need is a handheld transceiver, a tiny packet TNC, and an Android smartphone.

Homebrewing a vhf bicone antenna with 8 clothes hangers and 4 feet of Sch40 non-metallic rigid conduit

List of Ham Radio Emergency Items. A list developed to give a starting point that the user can develop his or her own list if items from

Two different ways to create autotransformer for end fed half wave wire antennas, by using ferrite or air core.

Abbreviations used for words on CW, ranging from commonly used abbreviations like B4 for Before or TU for Thank You to very obscure abbreviations known only to the one using them

A VHF UHF mobile operation setup with APRS tracking by wd6cmu

50MHz DX Bulletin edited by O. Bjorn Matt Madsen

Shareware Windows logging program for the 10-10 QSO party

Sommerkamp FTDX500 - Yaesu FTDX400 restoration

Improving the reception on 70 MHz for the yaesu FT-847

Remotely-Operated 1200 Baud AX.25 Narrowband Packet Radio and APRS on a Baofeng UV-5RA and Raspberry Pi 2

Providing solar on-line activity resources for the joy of solar science exploration

2009 IARU HF World Championship Contest Rules

The resurrection of a R-4C by W7VO

UV-3R Review at G4ILO Blog with long textual review, pictures and some sound files

Sponsored by TARA Troy Amateur Radio Association The worlds very 1st. PSK contest

The Vacuum Tube FAQ by Henry Pasternack

Provide an ATV repeater function for the North Jersey Exterior Area that is available not only for general amateur radio use, but also for providing a unique communications resource during emergencies as well (FCC Part 97.1 (a))

Technical specifications and details of the Yaesu FL-2100B HF Power Amplifier