Hello Alan, hello friends, I also see a weak continuous trace 136.547kHz also another exactly 100Hz higher, I did wonder whether they were the mark and space frequencies of a 100Hz shift FSK station.
Hello all, I have heard weak FSK on 136.6 kHz during morning hours only, can not use Spegram etc on LF until get my Rx --> PC interface QRM somehow cleaned. Will continue daily Field strength measure