[time-nuts] US Army Frequency Standard

Brooke Clarke brooke at pacific.net
Tue Jan 24 17:34:26 EST 2012


Hi John:

Is there a photo of the freq std on line?

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/Brooke4Congress.html


John Howell wrote:
> Thanks Bob,
>
> If it helps the switched frequencies are: 0, 10, 20, 40, 60, 80, 100, 120, 140, 160, 180, 190Hz.
>
> John.
>
> On 24 Jan 2012, at 22:09, Bob Camp wrote:
>
>> Hi
>>
>> Sounds about right for calibrating / verifying vibrating reed frequency
>> readouts.
>>
>> Bob
>>
>> -----Original Message-----
>> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
>> Behalf Of John Howell
>> Sent: Tuesday, January 24, 2012 5:00 PM
>> To: Discussion of precise time and frequency measurement
>> Subject: [time-nuts] US Army Frequency Standard
>>
>> Hi All,
>>
>> I recently obtained a curious Low Frequency Standard dating from the late
>> 1950s. Its output can be switched to a number of frequencies from 10 to
>> 190Hz, derived from a tuning fork. It is marked "Signal Corps" and "US Army"
>> with a type number TS-65D/FMQ-1.
>>
>>
>> Does anyone have any information about this unit, in particular what it was
>> used for and why the strange negative going pulse output and specific
>> frequencies.
>>
>> Thanks in advance,
>> John H.
>>
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