[Gb-ccb] 1PPS signal specifications

[Martin Shepherd]

On Thu, 4 Sep 2003, John Ford wrote:
>...it's because of the coaxial double-sheilded cable, and the fact
> that the other end terminates in a shielded box.  The receiver analog
> section, where the data cables originate, will not be in a shielded
> box.

Ahh. That explains a few things. I hadn't realized that the receiver
wasn't going to be in a shielded box. I was assuming that it was
subject to the same RFI emission constraints as the CCB, and would
thus have to be shielded and use filtered connectors. In fact, in my
selection of filtered connectors, I have been selecting the 3dB points
under the assmuption that there would be similar filtered connectors
at both ends of each cable, and thus double the attenuation of a
single filter. However if the receiver box isn't shielded, then
presumably filtered connectors aren't used there either, so I need to
go back and change my selection of filtered connectors.

Martin