[time-nuts] Switching oscillators

shalimr9 at gmail.com shalimr9 at gmail.com
Sun Dec 9 22:16:55 UTC 2012


Then the next best thing is a time-delay relay set for a delay sufficient to ensure the OCXO has warmed up.

Didier


Sent from my Droid Razr 4G LTE wireless tracker.



-----Original Message-----
From: Joseph Gray <jgray at zianet.com>
To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
Sent: Sun, 09 Dec 2012 3:53 PM
Subject: Re: [time-nuts] Switching oscillators

The finished project will be placed where I won't have regular access
to it, so I think I have justification for wanting this complication.
Also, I want to monitor which oscillator is in use, so my application
will know.

Joe Gray
W5JG

On Sun, Dec 9, 2012 at 2:18 PM,  <shalimr9 at gmail.com> wrote:
> You do not want to depend on an instrument that will switch its reference willy nilly while you take measurements.
>
> Have a switch so that you have some control on what is happening.
>
> Sometimes too much automation is just complication without justification.
>
> Didier KO4BB
>
>
> Sent from my Droid Razr 4G LTE wireless tracker.
>
>
>
> -----Original Message-----
> From: Joseph Gray <jgray at zianet.com>
> To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
> Sent: Sun, 09 Dec 2012 3:13 PM
> Subject: [time-nuts] Switching oscillators
>
> I have a device that has an internal TCXO. I want to feed it with an
> external OCXO, but I don't want to completely replace the TCXO.
>
> Here is the scenario. On initial power on, or after a power loss, I
> want the internal TCXO to be used. Once the OCXO is up, I want to
> switch to it. How could this be done easily and cheaply?
>
> Joe Gray
> W5JG
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>

_______________________________________________
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.


More information about the time-nuts mailing list