Category Archives: SOTA

Diamond RHM8B Antenna Strain Relief

I came across this interesting part at the Tokyo Radio Fair last month. It is a BNC strain relief for the popular Diamond RHM8B antenna, particularly when used with a PL259 socket adaptor on an FT-817.  If anyone has one … Continue reading

Posted in radio communications, SOTA | 2 Comments

Lightweight 2m Yagi for SOTA

With HF conditions poor at the moment,  2 metres with a bit of antenna gain is a good backup or main setup for SOTA. I wanted to make this antenna very lightweight and easy to carry in the pack without … Continue reading

Posted in Projects, radio communications, SOTA | Tagged | 9 Comments

MFSK16 APRS Tracker

Over the past couple of weeks I have been running this  MFSK16 APRS HF tracker in the car as a breadboard on 40m. I tossed up on whether to make a leaded or surface mount PCB, but ended up with … Continue reading

Posted in Projects, radio communications, SOTA | Tagged , , | 3 Comments

Yaesu VX8-DR GPS Revisited

A while back I made a GPS receiver module add on for the VX8-DR so that it could be used for APRS while on SOTA hikes. The module worked well although it was not that practical for portable operation because … Continue reading

Posted in Projects, radio communications, SOTA | Tagged , | 1 Comment

QCX QRP Portable Transceiver Build

This compact “QRP” or low power radio kit from QRP Labs in UK was too good to resist.  At $49.00 USD, it packs a lot of functionality into a small package.  The radio is based around an IQ phasing receiver … Continue reading

Posted in Projects, radio communications, SOTA | Tagged , , | 9 Comments

CW Paddle for the KX2

I came across this KX2 paddle from the QRPGuys recently.  The price was right at USD 25.00, postage was USD 5.00, so quite a bit cheaper than the original one.  It’s made from soldered PCB material so it won’t be … Continue reading

Posted in Projects, SOTA | Tagged | 4 Comments

Toorongo Range VK3/VT-026 Again

With freezing temperatures although clear skies, it looked like this would be one of the last times to get to a winter bonus summit for a while (or so I thought).   The ice was removed from the car and … Continue reading

Posted in Hiking, SOTA | Tagged | 4 Comments