[time-nuts] LORAN-A GRI Timing Generator

[J. Forster]

Battleship Massachusetts has one, right near you.

-John

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

> Loran A wow. That is indeed ancient. Did you find a old receiver or what
> that you are tinkering with?
> Regards
> Paul
>
> On Fri, Jan 7, 2011 at 5:28 PM, J. Forster <jfor at quik.com> wrote:
>
>> I just got to thinking a few minutes ago a Tektronix DD501 or a BNC
>> digital delay would be just about perfectly suited.
>>
>> I really don't like SRS much. They have been really unhelpful lately.
>>
>> Best,
>>
>> -John
>>
>> ==================
>>
>>
>> > Hi John:
>> >
>> > There are a number of options.  A couple that come to mind are:
>> > (1) us a Stanford Research DG535, see:
>> > http://www.prc68.com/I/TandFTE.shtml#DG535
>> >
>> > (2) use a PIC or other micro controller.
>> > http://www.prc68.com/I/PIC16F88.shtml
>> >
>> > Have Fun,
>> >
>> > Brooke Clarke
>> > http://www.PRC68.com
>> >
>> >
>> > J. Forster wrote:
>> >> I'm designing a simulator for LORAN-A...  YES, LORAN-A. It needs
>> about
>> >> 24
>> >> different GRIs from roughly 50,000 uS to 30,000 uS. Rounded to
>> integers,
>> >> the GRIs come out to something like 49,407 uS.
>> >>
>> >> Does anybody have any simple ideas for generating such a signal. For
>> >> simplicity, I'd like to use a standard crystal and no aardvaark
>> parts.
>> >>
>> >> Thanks,
>> >>
>> >> -John
>> >>
>> >> ==============
>> >>
>> >>
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>> >>
>> >>
>> >
>> >
>>
>>
>>
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>