[time-nuts] I wish to shorten GPS antenna cable - should I let receiver find the position again?

Jianhui Luo jianhui.luo at gmail.com
Thu Apr 23 14:24:19 EDT 2015


Yes. You will get same location. Some GPS time receivers have cable length
compensation for 1PPS output.

Remember 1 foot is about 1 nano second error in 1PPS.

Tim
On Apr 23, 2015 1:15 PM, "Dr. David Kirkby (Kirkby Microwave Ltd)" <
drkirkby at kirkbymicrowave.co.uk> wrote:

> I have an HP 58503A which I am using as a frequency source only - not
> to tell the time. I want to shorted the antenna cable a bit, but are
> wondering if I should let the GPS receiver finds it position again. Or
> either of the following better
>
> * Remove antenna cable, put a new N plug on, and screw it back in with
> the receiver kept powered up all the time.
> * Power off GPS receiver and power it back on with the cable connected.
>
> I'm not moving the antenna, so the actual position will not change,
> but of course the signals will get to the receiver a bit sooner.
>
> Dave, G8WRB
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