In a message dated 3/19/04 10:55:19 AM Eastern Standard Time,
john.currie@ns.sympatico.ca writes:
Hi Walter, I wonder if the shf stations used modulated cw? Looks like
they used Gunn oscillators, which could have drifted a GHZ doring the
transmission
At that frequency, they were using an incandescent lamp... :-)
Actually, the transmitter block diagram at the Web page cited in the original
post shows a really sophisticated PLL system to stabilize the oscillator to
the accuracy of the 5MHz source.
John
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