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

[D. Resor]

Thanks everyone for your help and input.  It seemed a bit suspicious that I could not find any current information on what is obviously dead technology.

Don Resor

-----Original Message-----
From: Tom Van Baak via time-nuts <time-nuts at lists.febo.com> 
Sent: Thursday, August 31, 2023 1:49 PM
To: Discussion of precise time and frequency measurement <time-nuts at lists.febo.com>
Cc: Tom Van Baak <tvb at LeapSecond.com>
Subject: [time-nuts] Re: Kinemetrics Truetime 468-DC usability

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
_______________________________________________
time-nuts mailing list -- time-nuts at lists.febo.com To unsubscribe send an email to time-nuts-leave at lists.febo.com