[time-nuts] Looking for TimePod 5330A for purchase or rental
Magnus Danielson
magnus at rubidium.dyndns.org
Sun Mar 3 12:26:27 UTC 2013
Stephan,
On 03/03/2013 10:57 AM, Stephan Schiller wrote:
> Hello all,
>
> I'd like to purchase or rent a milesdesign TimePod 5330A Programmable Cross
> Spectrum Analyzer.
>
> Rental would be for a duration of a few to several months (can be agreed on), in
> this year. Careful treatment of the device will be assured.
>
> My application is the measurement of phase noise of ultrapure microwave signals
> generated by a femtosecond laser. This state-of-the-art approach produces
> ultra-low noise microwaves. The goal specifications are -70 dBc/Hz at 0.1 Hz and
> -90 dBc/Hz at 1 Hz, -110 dBc/Hz at a frequency of 9 GHz.
This would require down-mixing, and the TimePod can do that, but the
larger Symmetricom boxes can't handle it. with down-mixing I mean that
after splitting the signal, two mixers with a pair of 8,99 GHz signal
sources (to make the signal about 10 MHz) should do it. You also want a
quiet reference oscillator. Got to try this one myself one day.
> The Symmetricom version of the TimePod does not have the capability of
> measurement at 0.1 Hz offset frequency, therefore I am looking for the original
> device.
Good point.
Can the Symmetricom version grab data so it can be presented by the
TimeLab with that range?
Cheers,
Magnus
More information about the Time-nuts_lists.febo.com
mailing list