137kHz

It is some years since I tried this band, but I really ought to give it a go again. The last time was QRSS3 (I think) when I went looking for the signal with a mag-mounted E-field probe on the car roof, my deaf FT817 and a PC. After 24km I gave up as I was still getting decent copy despite the very low ERP.

Although I am pretty sure I have given this link several times before, you may be interested if you are starting out on that band.

See https://sites.google.com/site/g3xbmqrp3/mflf/137khz_tvrtr