[hpsdr] Gibraltar fanning out clock and 1pps to HORTON/CASMIR/MERCURY/..

Achim Vollhardt avollhar at physik.unizh.ch
Mon Jul 10 06:41:52 PDT 2006


Dear HPSDR group,
I would like to remind people about the coherent system approach Bob and
others mentioned some while ago:

IF we manage to derive all signal path clocks from a single source
(let's assume a 10 MHz GIBRALTAR for now), this system will be able to
PRECISELY time any recorded signal to the sub-100 ns level! This opens
endless possibilities.. Maybe we also should route the 1pps signal from
GIBRALTAR to the backplane as an index marker to resolve any
ambiguities.. Long Baseline Interferometry comes into my mind here!

To all designers: please have a look, if your cards can support this.

I think it would be a shame to miss such an opportunity, up to now HPSDR
has all the things it needs for it.

73s Achim, DH2VA





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