[time-nuts] lightening protection of a GPSDO system / optical isolated distribution amp

Dr. David Kirkby (Kirkby Microwave Ltd) drkirkby at kirkbymicrowave.co.uk
Wed Nov 26 20:30:21 EST 2014

On 27 Nov 2014 01:14, "Chris Albertson" <albertson.chris at gmail.com> wrote:

> After this minimum you have th think about the probability of a strike.
> you live in Orlando Florida then it might be 100% and nearly zero in other
> places and then you ask what the radio equipment cost.   I paid $18 for
> Motorola Encore GPS receiver.

if a GPS receiver was the only item that would get damaged I would not care.

If it damaged 3 signal generators,  three VNAs, a frequency counter, and a
spectrum analyzer, I would care.

My experience with the lighting going down the telephone line and
destroying a few computers, printer and modem would make me unhappy about
an external antenna.

Nobody has answered my other question - whether one gets a better
disciplined oscillator with an external antenna.


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