[time-nuts] NTP IRIG config help

Rob Kimberley rk at timing-consultants.com
Tue Mar 8 07:25:27 EST 2011

I looked at the data sheet of the sel-2407 and interestingly it states
"demodulated" IRIG-B, which seems a bit odd. Either it's a modulated code
i.e. a sinusoidal wave with amplitude modulation (usually about 3:1), or
it's what we call a DC code i.e pulse width data stream not superimposed on
the 1 KHz carrier.

Rob Kimberley

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