4X5MG

Category: Ham Radio

Electronics, Ham Radio

Controlling PSU fan

Controlling PSU fan

After my PSU died and released its magic smoke, I got the XP Power JPS250PS12 which can produce 250W (21A @ 12V), and cranked the voltage up to 13.8V using the gray pot. Even on 12V the…
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Electronics, Ham Radio

AllStar Node using the Baofeng 888

Baofeng 888 Allstar Node

AllStar Node using the Baofeng 888

I recently helped a few guys setting their AllStar node (configuring the RPi and all this stuff) and I wanted to have one for myself. The required hardware for that project are Raspberry Pi,…
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Electronics, Ham Radio

Using The QYT KT8900 for an Allstar node

QYT KT8900

Using The QYT KT8900 for an Allstar node

The Story

A fellow Ham recently bought the QYT KT8900, a small cheap chinese radio. After few months he had no sound at all, not even menu beeps. dead. I decided to…
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Electronics, Ham Radio

The CAT is back

The CAT is back

Around a year ago, my chinese CAT cable stopped working. I took my oscilloscope out of the box and tried to find where the problem is. I came to conclusion that the USB to serial chip…
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