Unruh wrote:
> "David J Taylor"
[]
>> With just the reference clock type 20, I get the accuracy needed.
>> The PPS line from the GBS-18 LVC is wired to the DCD line of the
>> serial port.  In my ignorance, I don't see why you even need the SHM
>> driver, but as I said before, I'm no expert!  I don't see why my
>> system picks up the PPS from just the type 20 driver, and yours does
>> not.
>
>
> Because you have the PPS kernel patch installed or it was
> automatically
> instaled in BSD? The OP does not and does not want to.

Thanks.  Yes, I had to recompile the FreeBSD kernel to include this patch. 
I must have thought at the time that it was mandatory, or was advised to 
do this.

Cheers,
David 

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