Hi There are ( or used to be ) pictures of the full up cell stations that stuff like the 3801 and it’s cousins went into. Just how much searching it would take to find them … who knows. My recollection of them is a very boring bunch of faceplates in a couple of side by side custom racks. Couple LED's here / connectors there, not a lot else.
Back in the era when LPro’s were $30, the outfit that was selling the Lucent timing module with them in it would happily sell you the entire setup, shelter and all. Bob > On Oct 15, 2021, at 6:00 AM, Magnus Danielson via time-nuts > <[email protected]> wrote: > > Hi, > > Well, designs from before SA off did get better performance, even if not > optimum for the new condition. As they where installed, it did in itself not > cue for a shift, but rather, as the equipment it was installed with was > tossed, these receivers could be salvaged and used on their own. It would be > neat to see how that installation actually looked, because it's pulled from > some chassi and I've never seen how that setup really looked and was wired. > > Other receivers where not integrated the same way, so they would have longer > operational life. > > Cheers, > Magnus > > On 2021-10-15 02:35, Bob kb8tq wrote: >> Hi >> >> The stability profile of the GPS timing signal changed significantly when SA >> was turned off. >> Things like sawtooth correction that didn’t make much difference in the >> 1990’s now did >> make a difference. Time constants and OCXO parameters that made sense >> “before” didn’t >> make sense “after”. >> >> More or less: When you make profound changes in the GPS timing signal, the >> best approach >> to accurately recovering that signal has to change to match the new signal. >> Does everybody >> change everything the next day? Of course not. It takes a while for folks to >> work out what’s >> what with the “new rules”. >> >> Bob >> >>> On Oct 14, 2021, at 8:12 PM, Hal Murray <[email protected]> >>> wrote: >>> >>> >>> [email protected] said: >>>> The other way to look at it: The Z3801 and it???s kin basically went >>>> obsolete >>>> in 2000 when SA was turned off. Once that happened, the design approach >>>> changed. >>> Could you please say more. What changed in the design approach? >>> >>> Can I tell the difference by looking at a box? Or poking at the serial >>> port? >>> >>> >>> >>> -- >>> These are my opinions. I hate spam. >>> >>> >>> _______________________________________________ >>> time-nuts mailing list -- [email protected] -- To unsubscribe send >>> an email to [email protected] >>> To unsubscribe, go to and follow the instructions there. >> _______________________________________________ >> time-nuts mailing list -- [email protected] -- To unsubscribe send an >> email to [email protected] >> To unsubscribe, go to and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- [email protected] -- To unsubscribe send an > email to [email protected] > To unsubscribe, go to and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] -- To unsubscribe send an email to [email protected] To unsubscribe, go to and follow the instructions there.
