Products > Test Equipment

Use Siglent SSA as LCR Meter / Bode Plot?

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tautech:

--- Quote from: Attenbach on December 09, 2024, 06:38:00 am ---tau, I have the worlds best random number generator. This is my first spectrum analyser, or vna for that matter, and I have never seen this thing output a simple dot or curve on the sith chart.

--- End quote ---
Measurements I have shown are just of Open and Load without a Cal being applied to obtain the 50 Ohm dot or short sweep around the Smith chart edge for Short and Open.

They are only representative of measuring a Load and port Open with a factory Cal using SVA1032X.
Take them as nothing more......than FYI....

Currently without any full Cal kits as member and buddy hendorog have mine including a new 26.5 GHz Ecal for deep investigations with his VNA's and my SNA5004A.  :scared:

markus_jlrb:
@Attenbach,

I recommend you to buy a LiteVNA64, see link

https://eleshop.de/catalogsearch/result/?q=LiteVNA64
https://eleshop.nl/catalogsearch/result/?q=LiteVNA64

in order to get more experience on VAN staff and in order
not to destroy your more expensive SSA by playing with L's and C's.

As far as your f range of interest is not below 50kHz the
LiteVNA64 could help you to collect the necessary knowledge
and in case of destroying the device you only burn less then
200 Euro and not 2kE++.

LiteVNA64 is a good device but could be even to expensive for the
very first steps too, so in this case get a cheaper VNA of the
nanoVNA product family (less then 100Euro) to collect your first
experience.

Please do not misunderstood my advice - I just try to help you to
save money and earn fun with you new purchased tools without being
disappointed due to making some stupid errors.

Markus



Attenbach:
Dear Markus,

thank you so much for the advice, I appreciate it, incl. a link to a Eleshop! Awesome, thanks!

I will think about it, ironically, I bought the SSA for EMC pre-compliance (along with a LISN and a built-in 10dB attenuator) and was simply daring the crossflashing to see whether I could save on purchasing a dedicated LCR meter for semi-accurate testing passive components from my power supplies.

Instead of the nanoVNA, I assume it would be better to invest this into an LCR meter and give up on my RF trips, because that is not my field :) You all made it look so easy, so effortless. I wish...

Thanks for any further advice, or questions. I am willing to try out anything that may help you in understanding what's going on

PS: I will seriously consider getting the nanoVNA just to practice as you said.
PPS: I can also confirm I have never applied DC to the SVA, knowing what that could do.

KungFuJosh:

--- Quote from: Attenbach on December 09, 2024, 03:47:35 pm ---I could save on purchasing a dedicated LCR meter for semi-accurate testing passive components from my power supplies.

--- End quote ---

Have a look at the Shannon ST42 LCR Tweezers. They're quite good, and not expensive.

egonotto:
Hello,

maybe you should take a look at the Analog Discovery 3. It can also be used to measure LCR up to 30 MHz.

In the short thread
https://www.eevblog.com/forum/testgear/th2851-130-and-and-other-inexpensive-devices-to-measure-lcr/
some measurements are documented.

Best regards
egonotto

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