[time-nuts] Best phase detector / mixer for 100MHz?

[Rick Karlquist]

Bruce Griffiths wrote:
> Richard (Rick) Karlquist wrote:
>>
>>
>> On 11/23/2012 9:38 AM, Bruce Griffiths wrote:
>>>
>>> NIST have shown (at least at 10MHz) that the high level mixers they
>>> tested are noisier than the ZRPD1.
>>>
>>> Bruce

>>
> http://tf.boulder.nist.gov/general/pdf/2556.pdf
>
> Where all the high level mixers measured have a higher phase noise than
> lower level mixers/phase detectors like the ZRPD1.
>
> Bruce

This data is surprising.  I am wondering if it is being corrupted
by AM noise on the source?  They do not mention what the source is.
They could be measuring AM noise suppression differences in the
phase detectors.

Rick