[time-nuts] 5370 processor boards available

Chuck Harris cfharris at erols.com
Wed Oct 8 09:52:23 EDT 2014


Hi Mike,

The B is significantly faster in handling the GPIB interface,
and other internal processor functions than the A... and John's
board levels the playing field quite nicely.  My 5370A runs much
more quickly using John's board.  I run the "B" firmware on my
"A" counter.

The input module changes are largely irrelevant to most users.

-Chuck Harris

Mike S wrote:
> On 10/8/2014 8:46 AM, Chuck Harris wrote:
>> Other than turning the 5370A into a capable replacement for the
>> 5370B...
>
> ?
>
> I believe the only significant difference between the A and B is that the B had a
> slightly more robust input module, and came standard with the 10811 OCXO.
>
> There were some firmware differences related to GPIB handling, but the "B" firmware
> works in the "A". I posted instructions a while back - http://www.flatsurface.com/5370A/
>
>
>
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