The only way to use all of the provided params is to export the sweep data to a PC and do the calibration there.
I was using my SVA1032X and found when I turn on min/max or averaging traces there is no way to "reset" the traces which makes it hard to connect probe and then start the min/max, has anyone else seen this, am I missing something?
Additionally I found that there is no way to freeze screen, ie stop. For example I am probing with min/max on and then need to release the probe and save waveform, but it does not appear I can do this. Anyone have suggestions on how to stop and freeze the system?
I am also looking at trying to do impedance measurements with the SVA, it looks like it should be possible and was wondering if anyone has done this and might have a python scripts for such a feature?
Thanks
I was using my SVA1032X and found when I turn on min/max or averaging traces there is no way to "reset" the traces which makes it hard to connect probe and then start the min/max, has anyone else seen this, am I missing something?
Additionally I found that there is no way to freeze screen, ie stop. For example I am probing with min/max on and then need to release the probe and save waveform, but it does not appear I can do this. Anyone have suggestions on how to stop and freeze the system?
I wanted to measure the impedance of piezo probe. So I setup the VNA on S11, Smith chart R+jX, and got the enclosed smith chart.
The SVA1015X or alike
Please in VNA mode, is it possible to change the IF Bandwidth?
I searched the thread concerning IF bandwidth but could not find anything (strangely)
It is a SSA3021X plus hack/upgrade and I did calibrate with short/open/50 Ohm load. I also tested the VNA with 100 ohm and 50 ohm resistors to make sure the impedance was reasonable.
I actually got the magnitude and phase graphed, for the VNA
One of the things with the piezo is looking for the resonate frequency, which is typically the point where the phase is closest to zero. In the O-scope version this matches what I was expecting and is at ~8.25Mhz, while the VNA shows to be at 8.5Mhz which is a significant difference. A second issue I wonder about is that from what I have read the resonance frequency should have the lowest impedance, which does not match the data.
Are you using the same start/stop frequencies and number of points? If these are different it only makes sense that the saved file won't open.
I don't own this device, so I can't test, but my own software uses a similar feature with this exact limitation
Regards,
Vitor
Don't be so hasty as we need check this out first.
Yes datasheet says VNA stimulus now = higher BW models but there are also other error in the datasheet in spec for all models.
No hastiness here, just thinking out loud.
Nonetheless, I remember who has indicated in the past the low freq. distinction as a sign that the HW should be different.Yep, of course and it's very likely the inbuilt bridge was swapped out however if you hunt through the datasheet there are still a # of differences to the 3.2 GHz model including weight = lesser HW.
But when the # of VNA data points are wrong by an order of magnitude it screams someone is not doing their job !Fresh arrival.
100 KHz is certainly the minimum stimulus frequency that can be set.
Still waiting for official confirmation......
Quick question if I may,
Since I use my now liberated SVA1032X only for hobby purposes I'm not in the market for a professional mechanical calibration kit but for something slightly nicer then the average AliExpress stuff. I found a fairly economical mechanical calibration kit, made of Rosenberg SMA parts, on SDR-kits.net
The kit comes with calibration instructions from Kurt Poulsen OZ7OU, are made with the best intentions but not the easiest to understand for me.
The idea is to enter the female cal kit parameters under Calibration>cal Kit>User1 and the male cal kit parameters under User2
I can enter the "define open" delay of 42.3ps and no need to change C0, C1, C2 or C3 so that's all ok. But when I try to enter the "define Load" parameters the delay and Terminal Impedance fields are greyed out and there are no fields for C0, C1, etc, while the kit comes with a measured terminal impedance and the instructions to define CII as 5pf.
Any idea how I can enter the calibration parameters?
Link to the instructions: https://www.sdr-kits.net/documents/Rosenberger_Female_Cal_Standards_rev5.pdf
Can this hack be used on the SSA3015x plus ? I was told the hardware is exact, is this true?
Andrew