[time-nuts] Lady Heather numbers

[Garren Davis]

Thanks. I worry a little bit because my setup is not the normal thunderbolt running on the
shelf or a rack. The oven for my oscillator is broken so I removed it from the circuit board
and put it in a double oven with proportional controller that I built for a long ago project.
The thunderbolt is in the outer oven running about 45C and the oscillator is in the inner
oven running about 65C. The temperature rise on the display is probably the furnace in the
house turning on this morning. I notice that the DAC voltage also rises and falls with the
temperature change and wonder if that affects the oscillator in the inner oven.

I'll let it run for the rest of the week and see what happens.

Garren


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On Behalf Of Bob Camp
Sent: Monday, February 25, 2013 9:35 AM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Lady Heather numbers

Hi

Based on a very short display time, nothing looks seriously broken. I'd suggest running the OCXO calibration routine at some point. Everything is still warming up / settling out for the first week or two, so who knows where it will finish out at.

Bob



-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On Behalf Of Garren Davis
Sent: Monday, February 25, 2013 12:00 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Lady Heather numbers


Hi,

I have been playing with my thunderbolt and Lady Heather over the weekend. I hope it's ok that I attached a screen dump of what I have. Can anyone comment on the picture. It's been running less than a day and I don't know if what I have would be considered good as far as accuracy and stability is concerned.

Thanks.

Garren






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