It is interesting to note that even when a band appears to be closed, there is well chances
for an open SIM31 path. If you have a restricted antennas, power or both, SIM31 could be
the preferred mode for you. Signals that are -18dB S/N on 3000 Hz equivalent noise bandwidth,
can be decoded with relative ease. All received stations, with S/N reports, was spotted
automatically to the PSKReporter.info map service and to the HamSpots.net/SIM web pages.
So you can see on world mape where are you well received and at what signal report.