[time-nuts] Monitoring the Rapco 1804M - how antenna changes affect the unit
bg at lysator.liu.se
bg at lysator.liu.se
Thu Nov 3 20:22:11 UTC 2011
Hi David,
>> Ah, I didn't realize this was based on the Trimble board - I was
>> having a mental seizure and thinking it was using a Motorola OnCore,
>> as so many of the others did. Are you really sure it is an SV6?
>> Trimble also made an SV8 timing that was in the same form factor and
>> if it was using that it would certainly explain why you sometimes see
>> more than 6 satellites - although I have a vague memory that if you
>> talk to it as if it was a 6-channel board it starts pretending to be
>> one for reasons of backwards compatibility, so even if you do have the
>> SV8 in there it likely won't do you much good.
>
> Next time I have the unit open I will take a look. Are there obvious
> markings to distinguish the boards (it's a board and not a box), as I
> recall looking but no seeing any.
I have two 1804Ms with 6channel trimble boards and one with 8-channel. The
8-channel one will occasionally emit an 8-channel message. Most often at
bootup.
--
Björn
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