Category Archives: Projects

LoRa GPS Tracker

LoRa is a newish Internet Of Things communications technology.  It promises long range (LoRa), transmits a small amount of power and is designed for sensors that may need to operate from batteries for very long periods of time.  The air … Continue reading

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144 MHz for the KX2 Transceiver

Many times I have thought it would be nice to have 2 metres on the KX2, I do miss it from the FT817 days. This bare board transverter was on Ebay from a Ukraine seller, the feedback was very good … Continue reading

Posted in Projects, radio communications, SOTA | 2 Comments

Handles for the IC-7200 Transceiver

Grab handles are a good idea for the IC-7200  for when the radio is taken out portable.  The problem is that they cost something like $120 as an accessory!  This is about 10% of the cost of the radio itself. … Continue reading

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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

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Weak Signal Mode APRS

Over the past few weeks I’ve been experimenting with APRS Messenger, a great PC based application that uses weak signal modes for Automatic Packet Reporting System (APRS). Traditional HF APRS uses 300 baud packet data for APRS messaging which isn’t … Continue reading

Posted in Hiking, Projects, radio communications | 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

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Sheet Metal Bender

This metal bender project arose out of the need to often make small enclosures for various radio related projects.  Some time back, I purchased one from Ebay but it was not very good and would flex while bending even thin … Continue reading

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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