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

[Bob Camp]

Hi

25 years is far enough back that the device may well have had an antenna with
a downconverter in it. This let them move a much lower frequency back to the
device. One result was a savings in cable cost. There still are a few folks that do
this. 

Folks have done this or that to build an converter from scratch and mate it up
with a modern antenna. There is no fundamental reason why this can’t be done
for any device if the needed info is available. 

Bob

> On Aug 31, 2023, at 3:23 PM, D. Resor via time-nuts <time-nuts at lists.febo.com> 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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