[time-nuts] Have I wrecked my FE-5680A?

Nick Sayer nsayer at kfu.com
Fri Apr 29 13:06:40 UTC 2016


> On Apr 28, 2016, at 10:19 PM, Clint Jay <cjaysharp at gmail.com> wrote:
> 
> Does the PPS appear?
> 

I tested this just now and, no, it does not ever appear.

I do note that the output frequency is quite a bit on the high side. Could this be a case of the C217 trimming fix being required, or is Bert right and the unit is hosed?

> On 29 Apr 2016 02:02, "Nick Sayer via time-nuts" <time-nuts at febo.com <mailto:time-nuts at febo.com>> wrote:
> Just as I started testing the GPS discipline board prototype, my FE-5680A seems to have developed a very odd problem.
> 
> If I give it power, it outputs a “kinda” 10 MHz sine wave while it sweeps around looking for a physics lock. This is as expected.
> 
> About the time that I would expect the lock light to turn on, instead the output just stops. The lock light never comes on.
> 
> This unit’s been working fine for months now. It’s conceivable that I’ve sent it some sort of serial command it couldn’t digest, but using the Windows calibrator software seems to work - albeit there not being any output from the oscillator at all.
> 
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com <mailto:time-nuts at febo.com>
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts <https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts>
> and follow the instructions there.




More information about the Time-nuts_lists.febo.com mailing list