[time-nuts] Re: Kinemetrics Truetime 468-DC usability

Tom Van Baak tvb at LeapSecond.com
Thu Aug 31 20:48:42 UTC 2023


Hi Don,

The GOES timing service went off the air almost 20 years ago. An 
extremely informative article:

"The GOES Time Code Service, 1974–2004: A Retrospective"
by Michael A. Lombardi and D. Wayne Hanson
https://tf.nist.gov/general/pdf/2013.pdf
also available at:
https://www.nist.gov/publications/goes-time-code-service-1974-2004-retrospective

The old Truetime receivers are still found on eBay now and then. Some 
people buy them just to re-purpose the 1U case and attractive plasma 
digital display. The display tubes are sometimes discussed over on the 
Neon / Nixie mailing list

/tvb

On 8/31/2023 12:23 PM, D. Resor via time-nuts wrote:
> There is a very reasonably priced working Truetime 468-DC receiver available
> for purchase.
>
> I found and downloaded the Op/Installation guide.
>
> I have tried searching for some answers via the internet but came up with no
> definitive answers.
>
> While searching for information concerning the GOES Satellite.  I was unable
> to determine if the East/West frequencies 468.8250 MHz and 468.8375 MHz are
> still in use.
>
> According the manual there were two options for the GPS antenna, the A-468MS
> or the A-468H.  Seems these are both more rare than hens teeth, and if found
> can be very expensive.
>
> Must one of these two above mentioned antenna models be used, or can
> newer/later GPS antenna be installed instead?
>
> Seems this unit does not suffer from the 25 year calendar roll-back.
>
> Opening a can of worms here I'm sure, are there any other condemning
> considerations I have overlooked?
>
> Thank You
>
> Don Resor




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