GiamMa-based researchers SDR R&D IoT on Twitter: "GiamMa-based researchers SDR R&D IoT: Si5351 QRSS Beacon: An amateur radio #QRSS #transmitter (beacon) based on the #Si5351 #synthesizer & #Arduino Nano by VE2ZAZ https://t.co/N0sHOE4urf #
EI7GL....A diary of amateur radio activity: QRSS signals heard on 28 MHz - 1st Nov 2022
IW3SGT IV3-2161/TS HOME PAGE - HF QRSS EXPERIMENTS
Ham Radio Very Slow CW: QRSS | Canyon Traders
Ultimate3/3S case kit
The G4FUI QRSS Grabber Receiver
QRSS ATtiny | Ham radio, Qrp, Arduino
EI7GL....A diary of amateur radio activity: QRSS signals heard on 80 metres - 1st Apr 2019