[time-nuts] HP 5065A super

[jimlux]

On 2/23/18 1:33 PM, Bob kb8tq wrote:
> Hi
> 
>> On Feb 23, 2018, at 4:23 PM, Attila Kinali <attila at kinali.ch> wrote:
>>
>> Hoi Bob,
>>
>> On Thu, 22 Feb 2018 21:58:09 -0500
>> Bob kb8tq <kb8tq at n1k.org> wrote:
>>
>>> The same nickel plating effect gets into a lot of things. If you are shopping for very
>>> low IMD connectors, nickel plating is out. Things get non-linear (to a very slight
>>> degree) when it is present. If -180 db is the goal for those spurs, you might only
>>> hit -120 db with the nickel connectors …..
>>
>> Interesting. About what frequency range are you talking?
> 
> UHF up into microwaves. It was part of a lecture back when I was in school … I
> assume the basic physics hasn’t changed since then :)
> 


Passive intermodulation distortion? What is the physics... hysteresis 
curves in the magnetization of the nickel is what I would suspect.