[time-nuts] Ebay FE-5680A Rb: Are they that good?

Bob Camp lists at rtty.us
Thu Dec 8 15:05:31 EST 2011


They are adjustable via the RS-232 port. You type commands at them and they
change frequency. Type another command and they save the setting in
permanent memory. 

They are still pretty close to 10 MHz (like less than 2x10^-10).


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Chris Albertson
Sent: Thursday, December 08, 2011 2:54 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Ebay FE-5680A Rb: Are they that good?

On Thu, Dec 8, 2011 at 10:58 AM, Chuck Forsberg WA7KGX N2469R
<caf at omen.com> wrote:

> FE-5680A Rubidium Atomic Frequency Standard Oscillator Transceivers 10Mhz
> Out

There was a lot of email about these a short while ago.  But is is
still not clear to me if these are even adjustable and if not, how far
have they drifted off of 10Mhz since they were new.    I'd like to buy
one and calibrate it to a GPS.

Chris Albertson
Redondo Beach, California

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