Yeah, interesting they moved to 6479 LSB, just before this (a couple weeks ago) VC01 was on 6478 USB. But in the past I have seen them not even change freq, just change modes for days on end.
I have heard the Robot often, it is in here pretty much every morning, but in general I never really listen to it. This morning I let it run in the background while I did a few things at the desk. I noted something odd, it appears to occasionally switch to different transmitters.
Roughly every 6 minutes (on average) the signal would make an abrupt, between numbers groups, signal level change and a very slight pitch change. Also, the transmitted bandwidth would change very slightly. All of these might be indicative of a different transmitter picking up the sequence.
Noted change times, UTC:
1410:38
1421:40 (almost twice 6 mins, could I have missed one?)
1427:14
1427:40
1432:53
1438:53
1444:02
1449:58
1455:12
1501:08
1506:20
1512:16
T!
