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KISS TNC by m0pzt

Projects : KISS TNC Most of this project is based-upon the firmware from Mobilinkd but some discrete parts and some soldering (or breadboard) is required to get things working. By re-flashing an Arduino-compatible microcontroller, it’s possible to turn it into a KISS TNC for use with APRS/AX25. Depending upon where you get your ‘duino […]

Arduino Multiband Beacon

Arduino Multiband Beacon INTRO http://blog.dxers.info/2016/01/been-playing-around-with-39usd-arduino.html 144 MHz (2 meters) http://blog.dxers.info/2016/01/arduino-uno-si5351a-breakout-as-144.html 432 MHz (70cm) http://blog.dxers.info/2016/01/arduino-uno-si5351a-breakout-as-432mhz.html 902 MHz http://blog.dxers.info/2016/02/arduino-uno-si5351a-breakout-as-902mhz.html TESTS http://blog.dxers.info/2016/02/etherkit-si5351a-beacon-and-another.html MULTI-BAND Operation (successful) http://blog.dxers.info/2016/02/arduino-tinkerkit-etherkit-si5351a.html 5-BAND Operation (TESTING) http://blog.dxers.info/2016/02/arduino-tinkerkit-etherkit-si5351a_9.html

 

ที่มา: http://blog.dxers.info/p/arduino-multiband-beacon.html

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VHF BEACON AND APRS TRACKER

VHF BEACON AND APRS TRACKER (ENGLISH VERSION) 29/06/2015f4goh

This little low cost FM transmitting card can be used for different applications, like:

APRS Tracker APRS WX station APRS for sounding balloon Fox hunt Beacon for emergency exercice

Most of the time , the transmission of an APRS signal is AFSK , that is […]