[time-nuts] DMTD Mixer Terminations

[Joseph M Gwinn]

time-nuts-bounces at febo.com wrote on 03/03/2010 10:56:46 PM:

> From:
> 
> Bruce Griffiths <bruce.griffiths at xtra.co.nz>
> 
> To:
> 
> Discussion of precise time and frequency measurement 
<time-nuts at febo.com>
> 
> Date:
> 
> 03/03/2010 11:03 PM
> 
> Subject:
> 
> Re: [time-nuts] DMTD Mixer Terminations
> 
> Sent by:
> 
> time-nuts-bounces at febo.com
> 
> Whilst your corrected measurements for the 10534 and 10514 are now 
> within about 10% of those found by NIST for one of their mixers, the 
> discrepancy with Minicircuits estimates for the RPD-1s is somewhat 
> larger but their phase detector gain specs seem incompatible with their 
> max output specs.

The diode ring mixers MiniCircuits offers as phase detectors are usually 
designed for and characterized at 500 ohms load, not 50 ohms.  Does this 
resolve the discrepancy?

Joe