radio frequency scanner free download – SourceForge

HF-Sounder Version 1.4 (Beta)

Finds best HF band for site-to-site communications using Fldigi

… (NCS) listens to each band in the same sequence, starting at the same designated time. In the second half of the ten minute cycle, the remote site becomes the listener and the NCS transmits a text message on the band where the remote site’s signal was strongest. Both stations then switch to that frequency and start operating. If more than two stations in the net, the other stations can use the tool in Listener mode, and switch to the band announced by the NCS at the end of the sequence.