That's interesting. It's quite a narrow band....possibilites for the usual narrow-band modes... CW/PSK/WSPR/QRSS/DFCW? Babelfish translation below:- "The Council of the IBPT, pursuant to article 13 o
Dave, in fact it is one frequency that can be used, with max. 10kHz bandwidth, thus 69.950 +/- 0.005 MHz. But if you put an USB TX on 69.950 and "key" it with a 2kHz tone you have CW on 69.952 ... et