[time-nuts] GPS Locked and Unlocked Performance Comparison

Bruce Griffiths bruce.griffiths at xtra.co.nz
Wed Feb 13 18:21:51 EST 2008

David Welch wrote:
> I was wondering with so many 10 mhz sources running.or even a single cesium
> and gps receiver running, as I have now..and the 10 mhz is also routed to a
> clock driver system (leitch).I cannot receive 10mhz wwv broadcasts at all
> anytime,I am using a old radio shack sw radio on batt power..I tried even
> almost 3 blocks away and all I get is my 10 mhz carrier..so even a rooftop
> ant will not work ..I must have a lot of leakage somewhere to travel for the
> signal to peg the radios meter blocks away..

One source is the interconnecting cables, hardline or similar has the
lowest leakage.

Another leakage path is via the mains (or other supply) leads, RFI
filters on the mains (or other supply) inputs are advisable.
The mains wiring can be a reasonably effective antenna at 10MHz.


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