[time-nuts] Re: HP Z3801A project update

[paul swed]

Hi Ed
I have used satstat also but favor ladyheather. So nice.
Internally there was a mod that allowed the 3801 to output true rs 232.
Numbers of jumpers as I recall. Like 8 or 10.
If your using satstat then it doesn't remember anything.
As suggested in the points if the almanac is gone it can take quite a few
hours to regain it. No harm or foul, just time.
Its been a long time since I was in the 3801. But I just hooked the aa
batteries to the gps receiver terminals for that. No muss or fuss. The
reason to keep the batteries outside is to easily check V and watch for
corrosion or leakage. I change them every 2 years or so. Even if good.
Regards
Paul
WB8TSL

On Thu, Feb 24, 2022 at 6:36 PM ed breya <eb at telight.com> wrote:

> Paul,I'm using the old HP SatStat program. It's plenty good enough for
> my simple needs. I also found I have a bunch of old stuff from over ten
> years ago, while organizing the older PCs and consolidating backup
> files. The original Motorola WinOncore program is included. This can
> talk to the RXs directly, but I don't think it can when the RX is
> installed in the 3801A. I think there are enough layers in between, that
> you have to use SatStat only with the 3801A, and WinOncore only for
> stand-alone RX operation. I actually have a piece of an original
> Motorola demo/testing unit, which has the RX board mounting and
> connection, and RS-232 interface and such to run it. I'm pretty sure I
> have the instructions and schematic for it somewhere, and even the metal
> box it went into, but not found yet. Eventually I'll be able to rig up a
> deal to plug the same DB-9 M connector into it or the 3801A, depending
> on the situation.
>
> Looking a little at the WinOncore manual, it seems like you can get much
> deeper into the RX control and operation. I can't remember if I ever had
> it set up and running like this years ago. I think I was going to, but
> then dropped it when I got the Z3801A.
>
>
> Ed
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