I'm sure this has been mentioned before, but it seems that recently there are a lot of stations that are using the default WSPR Tx audio frequency of 1500 Hz. Naturally, this results in a some transmissions not decoding due to interference.

Give yourself and others a better chance for decoding by picking a semi-random frequency between 1400 and 1600 Hz.

Thanks & 73,
Terry N6RY
DM33sp