[time-nuts] GPS over fiber

Tom Knox actast at hotmail.com
Tue Sep 25 00:26:58 UTC 2012


Using my Aeroflex GPS simulator and Agilent ENC analyzer I could see no noticeable effect on S/N. But these signal are near the analyzers limit.
Best Wishes;
Thomas Knox



> Date: Mon, 24 Sep 2012 16:41:42 -0700
> To: time-nuts at febo.com
> From: eb at telight.com
> Subject: Re: [time-nuts] GPS over fiber
> 
> That would certainly provide good distance capability and isolation, 
> but there may be a severe penalty in signal to noise ratio (and some 
> non-linearity) due to converting to optical and back. It may be 
> worthwhile considering the specs of the overall E-O link versus the 
> extra gain and SNR or NF of conventionally amplifying and driving 
> longer coaxial cables.
> 
> Ed
> 
> 
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