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176 links

SOTA Associations - SOTA
SOTA is continually growing with new Associations regularly coming on board Click on an Association ...

[ Hits: 49 | Votes: 0 | Rating: 0 ]

FSK vs AFSK - IK3QAR
In the field of RTTY transmissions with audio boards you can transmit either in FSK ...

[ Hits: 156 | Votes: 0 | Rating: 0 ]
Treehouse YSF reflector - pa7lim
The treehouse project is an YSF reflector with multiple rooms You can change rooms via ...

[ Hits: 101 | Votes: 1 | Rating: 10 ]

Remote CW Key Project - IW7DMH
A simple DIY project for a remote cw key connected to your Flex Rig actually ...

[ Hits: 126 | Votes: 0 | Rating: 0 ]

ZenitPCB - ZenitPCB
An excellent tool to create design printed circuit boards in a simple and easy to ...

[ Hits: 142 | Votes: 1 | Rating: 8 ]
DesignSpark - RS Online - RS Online
DesignSpark PCB is a free PCB design tool by rs online designed to help the ...

[ Hits: 71 | Votes: 0 | Rating: 0 ]
PCB gEDA - gEDA
PCB is an interactive printed circuit board editor for Unix Linux Windows and Mac systems ...

[ Hits: 104 | Votes: 0 | Rating: 0 ]

WFView Open Source interface for Icom transceivers - Wfview
Wfview is a program that allows many modern Icom ham radio transceivers such as the ...

[ Hits: 361 | Votes: 2 | Rating: 10 ]

Remote Orbitron Interface - VK5DJ
Remote Orbitron enables either direct connection between a computer and the shack unit using a ...

[ Hits: 140 | Votes: 1 | Rating: 9 ]

Arduino Nano and si5351 Digital VFO/BFO - VK3HN
A kit Digital VFO with pre soldered surface mount parts and burned in firmware a ...

[ Hits: 378 | Votes: 2 | Rating: 6 ]

Frequency counter project - QRP Labs
This project includes quite a number of useful testing features which were very useful when ...

[ Hits: 128 | Votes: 0 | Rating: 0 ]

DL4YHF PIC-Keyer - DL4YHF
This page describes a printed circuit board that you may use to build a QRP ...

[ Hits: 128 | Votes: 1 | Rating: 7 ]
CW Keyboard and Keyer - W5UXH
A Combination CW Keyboard and Paddle Keyer It uses a single Atmel microprocessor the ATmega328P ...

[ Hits: 264 | Votes: 1 | Rating: 8 ]
CW KEYER - ON4EA
A home made CW keywer based on the W5UHX board.

[ Hits: 145 | Votes: 1 | Rating: 10 ]

Speech Processor - SM0VPO
How to improve performance of your audio using a home made speech processor In this ...

[ Hits: 249 | Votes: 2 | Rating: 10 ]

Home Brew paddles - VK3TMP
A home made morse paddle made with a perf board

[ Hits: 157 | Votes: 1 | Rating: 10 ]

Behringer HA400 Headphone Amplifier and RFI - WB5NHL
Removing disturbing RFI from the Behringer HA400 Headphone Amplifier using ferrites and capacitors soldered in ...

[ Hits: 121 | Votes: 2 | Rating: 5.5 ]

Optocoupled Transceiver-PC Audio Isolator project - IK5NAX
An optocoupled audio interface between PC and Transceiver for digital modes The article includes full ...

[ Hits: 197 | Votes: 0 | Rating: 0 ]

Spectrum Analyser I1KFH - I1KFH
A home mande spectrum analyzer project with several pictures and disposition of components boards based ...

[ Hits: 157 | Votes: 0 | Rating: 0 ]
Specan Spectrum analyzer - VU2ESE
The Specan is actually a very simple but robustly built receiver it is in essence ...

[ Hits: 86 | Votes: 1 | Rating: 9 ]