[time-nuts] Simulating LORAN-A GRI Timing Generator

[J. Forster]

That's just about what I want to do.

Best,

-John

========================


> John,
>
> Quoting "J. Forster" <jfor at quik.com>:
>
>>
>> The GRI and Delay counters need to be 5 decimal digits. My current
>> thinking is manual entry of the numbers via BCD coded thumbwheel
>> switches.
>>
>
> More than thirty years ago, I built a Rate Generator for LORAN-C
> excatly according to the above principle. It is still wandering
> at my junk box and is a three digit preset counter (3XSN7490)
> a quad input decoding gate (SN7420) and the thumbwheel switches.
>
> Using more or less the same principle there is also a six digit
> delay resolving one microsecond.
>
> They are very ancient designs but they work pretty well.
>
> Best regards
> Antonio
> CT1TE
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
>