[USRP-users] amplifier gain USRP WBX

Rob Kossler rkossler at nd.edu
Thu Oct 1 10:39:55 EDT 2015


On Wed, Sep 30, 2015 at 11:23 PM, fquitin via USRP-users <
usrp-users at lists.ettus.com> wrote:

>
> Well, I don't have an immediate idea, other than the
>> frequency-dependent delay through the attenuator may be somewhat
>> different at
>>   different attenuation levels.
>>
>
> I wouldn't expect that delay to be very large with a 1 cm-long
> attenuator... I'll try re-running the experiment, in case we messed up
> something in the setup.
>
> Thanks anyway!
> Francois
>
>
>
The following shows the phase characteristics of this digital step atten.
I'm not sure if this explains what you're seeing...

[image: Inline image 2]

https://www.hittite.com/content/documents/data_sheet/hmc472lp4.pdf
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