[time-nuts] Plug and play GPSDOs was:(no subject)

Robert Darlington rdarlington at gmail.com
Tue Jun 30 13:03:19 EDT 2009


I have my equipment attached to a rather large (100+ pounds) UPS device in
case of a power outage.  It'll run a Thunderbolt for a week I'd suspect.

I've purchased several items from fluke.l (that's an L not a one) on eBay
with good results every time.  The only "problem" I ever had was just this
week when I ordered a pair of Panasonic VIC100 antennas.  I asked him to
throw in two TNC to F adapters so I could go to ordinary RadioShack cable TV
cable.  I received two TNC to N instead.  This cost me $5!  No complaints,
just a minor annoyance, but now I have a pair of adapters I didn't have
before and I made due with a Pamona adapter kit till I find a proper
replacement.

-Bob

On Tue, Jun 30, 2009 at 10:56 AM, David Hilton-Jones <
David.Hilton-Jones at clneuro.ox.ac.uk> wrote:

> Many thanks Mark.
>
> I was thinking of setting up in a fixed position and leaving on
> permanently. But then if there's a power cut?
>
> Do you know if the China supplier is OK? Or any source in the UK of
> Thunderbolt?
>
> David
>
> >>> Mark Sims <holrum at hotmail.com> 30/06/09 17:48 >>>
>
> There is one thing that make most GPSDOs not quite plug and play...
> that is their need to know their location rather precisely.  They do
> this with a "self survey" mechanism.  The self survey can take several
> hours.  Most units can trigger this automatically if their location
> changes more than a specific amount.
>
> You are better off manually triggering the self survey and saving the
> results in the unit.  Unless you do this,  the unit might go into
> self-survey mode every time the power cycles or might get confused
> trying to use the old location.
>
>
> ----------------------------------------
>
>
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