The variation is from the atmospheric Doppler effect. Yeah, those
Cesium clocks they use make for a really "cheap" clock source :-)
-Tim
---
Tim Ellison, W4TME
Internet Systems Admin. & Customer Support Engineer
FlexRadio Systems™
4616 W Howard Ln Ste 1-150
Austin, TX 78728
Phone: 512-535-4713 Ext. 223
Email: t...@flexradio.com <mailto:t...@flexradio.com>
Web: www.flexradio.com <http://www.flexradio.com>
logo
/Tune In Excitement™/
PowerSDR™ is a trademark of FlexRadio Systems
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they are
addressed. If you have received this email in error please notify the
system manager. This message contains confidential information and is
intended only for the individual named. If you are not the named
addressee you should not disseminate, distribute or copy this e-mail.
Please notify the sender immediately by e-mail if you have received this
e-mail by mistake and delete this e-mail from your system. If you are
not the intended recipient you are notified that disclosing, copying,
distributing or taking any action in reliance on the contents of this
information is strictly prohibited.
On 7/15/2011 10:06 AM, geo...@gloria.us wrote:
Regarding WWV accuracy, I find that the WWV frequency varies +/-
fractions of a hz periodically, here in Vestal, NY! They must be
using a cheap crystal! <grin>
George
K2CM
-------- Original Message --------
Subject: Re: [Flexradio] frequency
From: "Ray, K9DUR" <k9...@rnacs.com <mailto:k9...@rnacs.com>>
Date: Fri, July 15, 2011 6:27 am
To: <t...@flexradio.com <mailto:t...@flexradio.com>>,
<flexradio@flex-radio.biz <mailto:flexradio@flex-radio.biz>>
Tim,
The other thing special about WWV is that the frequency is not
only known,
but it is known VERY accurately.
73, Ray, K9DUR
http://k9dur.info
_______________________________________________
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz <mailto:FlexRadio@flex-radio.biz>
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/ Homepage:
http://www.flexradio.com/
_______________________________________________
FlexRadio Systems Mailing List
FlexRadio@flex-radio.biz
http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz
Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/
Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
