The new refclock directive is implemented and documented
hmurray at megapathdsl.net
Mon Jun 27 18:23:37 UTC 2016
esr at thyrsus.com said:
>> hp58503a should probably be hpgps. It works for several devices.
> OK. Can you enumerate some other devices so I can list them in the header
> comment and on the driver page?
The documentation already mentions the Z3801A. There are a lot of them in
the ham/hacker community courtesy of the cell phone industry many years ago.
I think these were the first GPSDOs available at recycled prices. The manual
is available and makes a good read for background info on GPSDOs. There is
lots of non-HP info available on the web.
They are really old (GPS software says COPYRIGHT 1991-1995 MOTOROLA) so the
GPS units aren't very sensitive.
There are several other Z38xx versions available. There are usually a few of
them on eBay.
Recently, a batch of new Z3811/3812 two unit pairs appeared, also known as
KS-24361. Lucent unloaded their stockpile.
These are my opinions. I hate spam.
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