[Elecraft] OT - 30.53 KHz carrier pulses on 40 meters

[mike]

I have been noticing a 1 second on / 1 second off carrier at 30.53 KHz
intervals on 40 meters. For instance I just captured a P3 screen showing the
pulse at 6.97681, 7.03788, 7.06841 and 7.09894 MHz. At first I suspect a new
switching power supply, but the signals are still there when running off a
battery. Anyone know what this might be? I am puzzled.  73  ..mike  AI6II



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