Hey all
I got my SSA3021X yesterday. I'm just starting to learn about SAs and everything that has to do with them, so please be patient with me and my questions
I've already been in an EMI/EMC lab to have some products analyzed though.
Playing around with the SSA and EasySpectrum caused some questions popping up
Maybe you experienced users or Siglent may have some informations about that.
So I'll just ask them here, if that's okay:
1: In the lab the guys easily found leaks using a probe connected to a (way more expensive) SA.
They turned up the volume of the built in speaker and the noise de-/increased with the amount of radiation at the probe's location.
The Siglent SSA also has an option to connect headphones. I used my Samsung Galaxy headphones and demodulated some radio stations already
The volume was set to "1" and my ears nearly started bleeding. So either it's an output to connect a speaker or the pre-amp inside the SSA is not yet adjusted right.
Is there any way to ask Siglent for a better handling of the volume?
Is there any way to listen to (probably transposed) signals that are going into the SSA?
IMO (if it doesn't exist already) it would be great to make the SSA play some kind of audio signal (like 500 Hz sine or whatever) and make its volume de-/increase with the signal strength? With an amp connected to the SSA this would be helpful for leak hunting.
2: EasySpectrum is quite nice. Being able to set EMI limits and start (automatic) measurements.
It would be nice if there was an option to set the window size according to the PC's screen size/resolution. That way viewing the charts would be a lot better/nicer.
3: I've also bought the beehive 101A probe kit. There's a datasheet with formulas to calculate their output power if I'm not wrong. Stupid question, but is there a way to tell the SA what kind of probes are connected or to enter some correction data about the connected probe?
A DSO can be told what probe (1:10, 1:100 etc) is connected so it shows the correct values.
Beside cable attenuation etc, how do I know what power levels I really measure?
4: Some keypress beep feedback would also be great, maybe Siglent could add an option in the system settings ...
5: I set the SSA to show some peaks in the noise (for example: radio stations). Using the peak list I only saw one of them listed and I had a hard time to jump to the next peak that was clearly visible on screen. I used the rot-enc wheel to get to the desired/next/previous peak but that was quite uncomfortable.
Is there any easier way to jump to peaks while the measurement is not stopped (trace set to view)?
7: pushing peak button, stopping the measurement (trace -> view) and going back to peaks shows a list of them.
"Marker" is set to "normal". The button "next peak" does nothing here. "left" and "right" jump to the expected peaks. But pushing the "peak peak" button sets marker from "normal" to "delta pair" making a "1r" appear on screen on the lowest falling edge peak.
Is that to be expected?
6: How can I scroll or "scan" through the frequency band? Either there's a bug or I misunderstood something.
For example: start freq: 2.7 GHz, stop freq: 2.8 GHz, resulting span is 100 MHz
Selecting center freq (which results in 2.75 GHz), with a freq step of 10 MHz and turning the rot-enc wheel, shouldn't the next step be at 2.76 GHz? Here it jumps to 2.7505 GHz, doing 500 kHz steps ...
Thanks for any advice, hints and stuff like that