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Products => Test Equipment => Topic started by: tkamiya on September 02, 2019, 04:42:26 am

Title: HP859x specAn owners with sweeper, how do you normalize display?
Post by: tkamiya on September 02, 2019, 04:42:26 am

I have HP8593L with HP8350B as well as plugin that goes to 26.5GHz.  Say I set sweeper to go min to max frequency and feed it to HP8593L.  My cables are certified to 26.5GHz.  However, with loss and variation in output of sweeper, toward high end, there are bumps and "sag"s.  There's about 10db difference.

I have seen this done before.  Using mathematical manipulation in specAn, make the trace appear straight.  I can't find how to do this anywhere including manual. 

If anyone is familiar with this operation, would you please share your method?

Title: Re: HP859x specAn owners with sweeper, how do you normalize display?
Post by: Bicurico on September 02, 2019, 06:53:10 am

Hi,

My Siglent SSA3000X has TG and this comes with a function called "Normalize" to do exactly what you want.

Also, I have been experimenting and implemented an error map compensation for my "VMA Simple Spectrum Analyser" software. This is available at this moment only for the SMA/NWT/D6/LTDZ range of devices.

However, even with the current version of "VMA Simple Spectrum Analyser for HP/Agilent 859x Series" you can sort of do this, using the MATH trace.

Feel free to visit my blog: https://vma-satellite.blogspot.com

The latest posts in my blog discuss this and show some insights.

I might be addidng the error map/calibration functionality to the other versions of my software (Siglent SSA3000X, R&S CMU200/CRTU and HP/Agilent 859x Series).

Regards,
Vitor