Products > Test Equipment
Agilent E4406A Vector Signal Analyser
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cyr:
My unit came with license files for almost all options, as described here:

https://www.eevblog.com/forum/testgear/%27free%27-vsa-options/

I have no idea why, but I'm not complaining. Not that the various personalities are *that* useful, but they can't hurt. Constrained by the 48M flash though, maybe a DIY 64M upgrade could be possible - or a software mod to load files from LAN or SCSI...
G0HZU:

--- Quote ---The digital communication personalities are a nice bonus. Are they required for the demodulation of normal digital types like  16 QAM etc?
--- End quote ---

As far as I know the E4406A doesn't have a generic analog/digital personality option. So you are just limited to whatever mobile phone personality options it was shipped with.

However, the VSA software does all the various demod modes with option AYA. You can define the digital filter type, bit rate and loads more parameters for each demod type you choose.

http://cp.literature.agilent.com/litweb/pdf/5990-6387EN.pdf
G0HZU:

--- Quote from: edavid on April 05, 2015, 10:36:44 pm ---
--- Quote from: G0HZU on April 05, 2015, 02:32:52 pm ---I'm probably going to replace the Lithium coin cell battery on the main CPU card.

Has anyone done this already? Is it easy to take apart and gain access to the battery? I've not had the covers off to look inside yet...

--- End quote ---

It's harder than it should be... refer to the service guide for the CPU board removal procedure:

http://www.keysight.com/upload/cmc_upload/All/E4406-90178.pdf

--- End quote ---

Thanks... I think I'll wait a while before taking it apart. I generally avoid taking test gear apart unless really necessary. However, the service document states that the battery lasts for just 3 years typically so I reckon mine will probably die soon...
G0HZU:

--- Quote from: cyr on April 05, 2015, 11:52:21 pm ---My unit came with license files for almost all options, as described here:

https://www.eevblog.com/forum/testgear/%27free%27-vsa-options/

I have no idea why, but I'm not complaining. Not that the various personalities are *that* useful, but they can't hurt. Constrained by the 48M flash though, maybe a DIY 64M upgrade could be possible - or a software mod to load files from LAN or SCSI...

--- End quote ---

That's interesting...  It would be nice if it were possible to dump the personality into the machine via LAN but I've got a lot to learn about this instrument and at present I know very little about what can be done with it to increase its versatility.

G0HZU:
To show it can also do 'old school' analogue FM demodulation here's an image of it demodulating my Marconi 2024 sig gen set to 5kHz FM deviation and a 2.093kHz modulation frequency.

You can see it measure the peak deviation correctly and also the demodulated tone is measured at 2.093kHz in the demodulated spectrum in the lower left corner. It shows a deep Bessel null here as expected :)

It can also do AM and PM modes.
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