SDR recording catch.
0007 Sign on, 6935.7 or so, watched the carrier slide down to 6935.
0009 Music started, SIO 444.
0029 Carrier had drifted down to 6933.75, then watched it slide up to 6934.93 kHz.
0107 Signal dropped from SIO 444 to 111 in the matter of a few seconds.