[time-nuts] 9390-55108 IRIG

Bob Camp lists at rtty.us
Fri Aug 9 17:53:10 UTC 2013


Hi

If you are trying to pass timing around a large area (factory / test range / base) on telephone lines, time on an audio tone is a pretty good idea.

Bob

On Aug 9, 2013, at 1:38 PM, Al Wolfe <alw.k9si at gmail.com> wrote:

>   The TrueTime GPS receiver and frequency standard I have puts out IRIG-B as well as 4 each 10 Mhz. signals. What in practical terms is the IRIG-B (AM, not DC) good for?
> 
> Al, K9SI
> 
> 
>> The DC code was usually TTL compatible PWM and the IRIG-B would be 3V pk-pk AM. Marker 8 cycles, "1" 5 cycles and "0" 2 cycles wide. Spaces 1V pk-pk.
> 
> 
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