Re: GPS Disciplined 10MHZ source from China

Posted by Elecraft mailing list on May 09, 2017; 9:38pm
URL: http://elecraft.85.s1.nabble.com/GPS-Disciplined-10MHZ-source-from-China-tp7630465p7630474.html

OK, so what was the "Item Number" on the bay?   As I'm unable to find
that seller to see what exactly it was you purchased.

Or, what is the make/model number of it (if it's an ex commercial item,
such as a Thunderbolt.)

The devil is in the detail with these things.

73
Dave G0WBX


On 09/05/17 21:53, [hidden email] wrote:

> Date: Mon, 8 May 2017 16:26:10 -0600
> From: "Jay Miller" <[hidden email]>
> To: <[hidden email]>
> Subject: [Elecraft] GPS Disciplined 10MHZ source from China
> Message-ID: <001001d2c84a$1881a390$4984eab0$@mindspring.com>
> Content-Type: text/plain; charset="us-ascii"
>
> I was curious so I bought a GPS disciplined 10MHz source from China using
> the eBay seller "cybereveryday."  I have a calibrated scope and a Rubidium
> 10MHz source. I noticed a frequency offset on three of the WWV frequencies
> when I plugged it into the K3 XREF module after getting "GPS Lock" rather
> than using my Rubidium lamp standard   I measured the 10MHz output from the
> GPSDO and it is 10,000,025 Hz. (2.5 PPM) The eBay ad states "Accuracy: than
> above OXCO 2 order of magnitude."  The point is, even using the K3 zero-beat
> method with 15 MHz WWV I can get closer to being dead on frequency than
> using this Chinese mfg. GPSDO. Again, Elecraft quality and engineering WINS.
>
>  
>
> Jay Miller, N4NUI

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