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Many times I was facing a complicated problem: using two software programs that need to access the same serial port at the same time. This i...

This night I finished my small RTTY Beacon based on an Arduino Uno and a AD-9850 DDS. The tuning frequency is 14.088 kHz, USB. RTTY is sen...

So... I found on my junk box a Kantronics Kam Plus modem. It stayed there about 2 years untill I found (yes, in my other junkbox) a 25 to ...

A few years ago, I publish a cable diagram for Kenwood TH D7 , the little APRS dual band radio.I received some questions about the next step...

I found on Android Store a nice application for my favorite PSK 31 Digimode, "PSK Droid". Altough, it works very nice when using ...

I am a big fan of Digimodes as you maybe know already! Therefore, I am always in the search of the “perfect” Digi Interface which also has t...

Acum cateva seri testam o interfata pentru moduri digitale si am ajuns in banda de 20m unde, am avut placuta surpriza sa intalnesc o statie ...