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

[Matt Krick]

I'm currently working on a GPS translation board that replaces the RF front
end board inside the unit.  It is just about ready to go.

On Thu, Aug 31, 2023, 13:55 Tom Van Baak via time-nuts <
time-nuts at lists.febo.com> wrote:

> 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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