40 MHz ISM Band WSPR (40.662 MHz USB)
40mhz Ringo |
Ringo Feed |
Mount |
SWR (K6DGQ) |
Screen View |
The ISM radio bands are reserved internationally for industrial, scientific and medical (ISM) purposes... wiki
WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions... WSPR
To view my 40 MHz ISM Band WSPR spots please visit Cali VHF UHF
