[time-nuts] Is this measurement for real?

[Bill Dailey]

Sounds about right.

Sent from mobile

> On Dec 7, 2013, at 2:24 PM, "quartz55" <quartz55 at hughes.net> wrote:
> 
> I've been testing my soundcard measurement capability with Speclab, so I hooked my LPRO Rb to lock my Moto Service Monitor, fed the 1K audio out into the sound card and I measured the freq over about a half hour.  I got a spread of about 107uHz.  I've tried a few other things through my TS2000 using a 1500Hz tone from the USB and I can see when the fan goes on and off although I have the RX main osc locked to the GPSDO with the XRef from VK3HZ.  I can only assume the drifting in the RX is due to the DSP processing crystal drifting with temp.  I get about 13mh drift on that.  Anyhow, here's a shot of the 1000Hz directly into the soundcard with Speclab. http://i251.photobucket.com/albums/gg287/DogTi/time/1k30m_zpsc4173981.jpg  I almost don't believe it, does anyone else?
> 
> Dave
> N3DT
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