[Elecraft] GPS Disciplined 10MHZ source from China

[Clay Autery]

Need to get that TMP cable (radio to Freq. Ctr) made and get back to the
project of determining exactly how close you can get on average without
an instrument(s).

Pretty sure I can get a lot closer than 25 Hz using my ear.... even my
old aviator's ear.

Glad I chose NOT to try the eBay/Chinese PCB box deals...

______________________
Clay Autery, KY5G

On 5/8/2017 5:26 PM, Jay Miller wrote:
> 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