[time-nuts] Advice on getting a used Agilent E4432B RF-Generator

[Dr. David Kirkby]

On 19 November 2013 16:53, cfo <xnews3 at luna.dyndns.dk> wrote:
> On Tue, 19 Nov 2013 09:35:00 -0700, Tom Knox wrote:
>
>> Amazing price, is there a gun involved?
>>
>> Thomas Knox
>
> No gun , but some previous buys from same seller.
> And no options installed in the unit.
>
> I have just been told that the attenuator is made up of some PIN-Diodes ,
> and is virtually immune to wear.
>
> So i have decided to get the unit.
>
> CFO

If it is made up from PIN diodes, I wonder what the logic of Agilent
letting you read the number of times they have switched?

The sig gen I have, which I mentioned on the HP forum earlier, but was
not sure of the number, is an HP 8665A. I paid about £700 (GBP) for
that about a year ago, and being a late firmware version, goes to 4.5
GHz, although its performance is only specified to 4.2 GHz. BUT I do
have an attenuator issue on that!!! They are clearly mechanical and
some changes of output level do not occur correctly.



Dave