[time-nuts] Re: HP 53132A - 5 GHz input 3 missing sensitivity

[James Reed]

Dear Olivier:  Your HP 53132A has "adjustable" sensitivity.  I am attaching
a screenshot from both the 53132A data sheet and from the operations
manual. Each input channel can be adjusted for "Low", "Medium" or "High"
sensitivity, as detailed on page 1-19 of the Operations manual.

James Reed - KC3SGI
11492 Abbys Way
Bridgeville, DE  19933
(302) 604-1327



On Tue, Jul 7, 2026 at 8:46 PM Olivier ADLER via time-nuts <
time-nuts at lists.febo.com> wrote:

>
> I got a second hand HP53132A frequency meter with the 5 GHz input option
> 050.
>
> This input is missing a lot of sensitivity. I get around - 5 dBm of
> sensitivity only.
>
>
> Is it a common fault on those meters ?
>
>
> Seems like there are some MMIC followed by a frequency divider chip.
>
> Is there a good chance that this card be repaired at a reasonable cost ?
>
>
>
> Thanks for helping,
>
> Olivier.
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