Joe the reason why its not so uncommon may not be obvious in the US :-))
12.8MHz is used as a reference for commercial and amateur PLLs in Europe
where the common channel spacing is 12.5kHz (/1024) or 6.25kHz (/2048). This
may mean that 12.8MHz oscillators may be more easily found in Europe ?? A
TCXO should be capable of 0.1ppm. I have seem a lot in mobile/cellular
product from a UK firm called Golledge but I dont know what the specs were.
Alan G3NYK
----- Original Message -----
From: "Joseph Gray" <jg...@zianet.com>
To: "Discussion of precise time and frequency measurement"
<time-nuts@febo.com>
Sent: Saturday, November 24, 2012 3:59 PM
Subject: Re: [time-nuts] 12.8 MHz OCXO
David,
Thanks for the links, but none of those meet my 0.25 ppm requirement.
Joe Gray
W5JG
On Sat, Nov 24, 2012 at 1:55 AM, David C. Partridge
<david.partri...@perdrix.co.uk> wrote:
With only 0.25ppm needed would a TCXO do?
Howsabout this:
<http://www.kuhne-electronic.de/en/products/special-offer/128-mhz-crystal-oscillator-tcxo.html>
or
<http://www1.futureelectronics.com/doc/IQD%20FREQUENCY%20PRODUCTS/E4191LF.pdf>
or even
<http://cgi.ebay.com/310376642284>
Dave
-----Original Message-----
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Joseph Gray
Sent: 24 November 2012 08:26
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] 12.8 MHz OCXO
Can anyone recommend an inexpensive 12.8 MHz OCXO that outputs a sine
wave? I've looked online, but the only ones I find costs hundreds of
dollars. Anything 0.25 ppm or better is fine. A Vcc of 5-13.8 VDC
preferred.
Joe Gray
W5JG
_______________________________________________
time-nuts mailing list -- time-nuts@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@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@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@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
