[time-nuts] AC Connector On HP 5061B

Jeffrey Okamitsu w3kl at w3kl.com
Fri Oct 3 17:45:42 EDT 2008


For an interferometric application, isn't it sufficient to maintain constant phase difference?
 
Jeff

Jeffrey K. Okamitsu, PhD, MBA
+1-609-638-5402

--- On Fri, 10/3/08, Lux, James P <james.p.lux at jpl.nasa.gov> wrote:

From: Lux, James P <james.p.lux at jpl.nasa.gov>
Subject: Re: [time-nuts] AC Connector On HP 5061B
To: "Discussion of precise time and frequency measurement" <time-nuts at febo.com>, "Tom Van Baak" <tvb at leapsecond.com>
Date: Friday, October 3, 2008, 4:50 PM

> > When does the phase of the timebase input mean anything?
> > Most test equipment is happy to have a stable external frequency
> > input; the phase is immaterial, no? Can someone give me an example
> > when relative phase among various random pieces of test
> equipment is
> > important?
> >
> > /tvb
>
> Hi Tom,
>
> Your absolutely right.  The only two places that I can think
> of, off hand, would be televison and RADAR (systems with
> multiple terminals).
>
> Bill....WB6BNQ
>
>

Interferometers are another.

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