The best now is the 8607 BVA OCXO from Oscilloquartz (now part of ADVA
optical networking).
On Fri, Oct 3, 2014 at 2:33 PM, Dan Kemppainen wrote:
> Hi All,
>
> Considering this old stuff was that good, what's the best that's
> currently available now? How does that compare to the best that's ever
Hi All,
Considering this old stuff was that good, what's the best that's
currently available now? How does that compare to the best that's ever been?
Dan
On 10/3/2014 7:19 AM, time-nuts-requ...@febo.com wrote:
> Tom,
>
> Nice performance. Wish we could get that today! My fairly modern BVA i
>
> /tvb
>
> - Original Message -
> From: "Richard (Rick) Karlquist"
> To: "Discussion of precise time and frequency measurement"
>
> Cc:
> Sent: Wednesday, October 01, 2014 9:03 PM
> Subject: Re: [time-nuts] How long do ovens take t
will still work out-of-the-box in 2064?
/tvb
- Original Message -
From: "Richard (Rick) Karlquist"
To: "Discussion of precise time and frequency measurement"
Cc:
Sent: Wednesday, October 01, 2014 9:03 PM
Subject: Re: [time-nuts] How long do ovens take to cool to ambient a
ll still work out-of-the-box in
> 2064?
>
> /tvb
>
> - Original Message -
> From: "Richard (Rick) Karlquist"
> To: "Discussion of precise time and frequency measurement"
>
> Cc:
> Sent: Wednesday, October 01, 2014 9:03 PM
> Subject: Re:
will still work out-of-the-box in 2064?
/tvb
- Original Message -
From: "Richard (Rick) Karlquist"
To: "Discussion of precise time and frequency measurement"
Cc:
Sent: Wednesday, October 01, 2014 9:03 PM
Subject: Re: [time-nuts] How long do ovens take to cool to ambi
On 10/02/2014 06:03 AM, Richard (Rick) Karlquist wrote:
On 10/1/2014 1:04 PM, Hal Murray wrote:
drkir...@kirkbymicrowave.co.uk said:
Anyway, later today (tomorrow ??) I will post a plot of frequency vs
time.
The question is though, how long is thing thing likely to take too cool?
I'd expec
> I'd expect an exponential decay so you need to specify how close to ambient
> you want to get. I'd guess a ballpark of 10x the warm up rate.
>
> You can probably measure it if you have the warmup graph. Turn it off, wait
> a while, turn it on, measure the freq, consult warmup graph.
Some o
On 10/1/2014 1:04 PM, Hal Murray wrote:
drkir...@kirkbymicrowave.co.uk said:
Anyway, later today (tomorrow ??) I will post a plot of frequency vs time.
The question is though, how long is thing thing likely to take too cool?
I'd expect an exponential decay so you need to specify how close to
drkir...@kirkbymicrowave.co.uk said:
> Anyway, later today (tomorrow ??) I will post a plot of frequency vs time.
> The question is though, how long is thing thing likely to take too cool?
I'd expect an exponential decay so you need to specify how close to ambient
you want to get. I'd guess a
Typical 10811 warm-up time is circa 10 minutes; cool-down time is actually
several times longer (since there is no active "cool-downer" in the case!)
More modern, smaller OCXO's will warm up and cool down more quickly.
If it's a double oven or user has added extra insulation around the basic
OCXO
Following on from my question the other day about the type of
oscillator in the HP 8720D VNA, I finally got around to setting this
up on the spectrum analyzer today. Luckily, some software I wrote back
in 2008 for a friends HP 7 system was easy to modify to grab the
save the frequency. So I can
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