Comment Comment by discretion22 136KHz is available : https://rsgb.services/public/bandplans/#5and 472KHz (https://rsgb.services/public/bandplans/6/)and 1.8-2Mhz (https://rsgb.services/public/bandplans/7/)There a surprising amount of things it can be used for and some really interesting innovation at the bottom end of the spectrum. Well worth getting qualified as an Amateur operator if you want to experiment. parent discretion22 3 years ago
and 472KHz (https://rsgb.services/public/bandplans/6/)
and 1.8-2Mhz (https://rsgb.services/public/bandplans/7/)
There a surprising amount of things it can be used for and some really interesting innovation at the bottom end of the spectrum. Well worth getting qualified as an Amateur operator if you want to experiment.