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 any of :
* Restricted antennas.
* Restricted power.
* High local noise.
* Weak propagation.
SIM31 could be the preferred mode for you. Signals that are -18dB S/N can
with relative ease. All
received callsigns and S/N reports are
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.