Cheap Antenna Analyzer

Hf Antenna Analyzer

Cheap Antenna Analyzer

Background

Recently, I stumbled upon 4X6UB’s post (can be found here) about his cheap HF antenna analyzer. Since I don’t have one and buying MFJ or others are expensive (Besides, building one is much more fun than…
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TS100 Soldering Iron Review

TS100 Soldering Iron

TS100 Soldering Iron Review

I’ve been looking for new soldering iron for a while. I don’t solder a lot but I wanted to buy something that is reliable than my old one which has no station or temperature control. I…
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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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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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