Another question:
is it possible only on SSA3021X Plus or also on SSA3015X Plus?
Once a SSAX+ reaches V3.2.2.4.0, they all start using the same FW.
So, you can do a conversion to SVA1015X but you can't upgrade beyond that. Here.
Does that mean the "new" SVA will always stay at firmware V3.2.2.4.0 ? No future updates ?
I opend the machine and guess what? It is realy a hardware fault.
I opend the machine and guess what? It is realy a hardware fault.
So, I have been reading this thread about the upgrade, of a SSA to a SVA. And I came across this "cabel fix".
BUT, if you look at this video from the repair thread, this guys SSA does not have those extra connectors
or that second short cable.
https://www.eevblog.com/forum/repair/fixing-the-rf-front-end-of-a-spectrum-analyzer/
Does that mean that this can not be converted to a fully functioning SVA ??
Many Thanks !
rudi
BUT, if you look at this video from the repair thread, this guys SSA does not have those extra connectors
or that second short cable.
Does that mean the "new" SVA will always stay at firmware V3.2.2.4.0 ? No future updates ?
I believe the reference to 'upgrade' was that you can't go from a 3015 to a 3021/32
So I will be able to flash future SVA firmware upgrades in to my unit, correct ?
I have a question regarding calibration kits.
What kits do you use ?
So far I have been using the cheap SMA kit from AliExpress: open, short and load.
But I see so many really expensive kits. What is your take for up to 3.2 GHz calibrations ?
Do the expensive kits really make a difference ?
You’re doing a S21 measurement.
S21 sends out the signal from port 2 and measures on port 1.
So where (how) have you attached the 50ohm load??
Did you re-enable telnet in the startup script after the upgrade? If you are using the telnet ADS script, are you using the right model number, as it changes in later firmware and after a cross flash.
....
The worst of it all, I can not longer telnet in to the unit. Even the telnet ADS that used to work, have
stopped working. I tried static IP and DHCP, same result.
...
You’re doing a S21 measurement.
S21 sends out the signal from port 2 and measures on port 1.
So where (how) have you attached the 50ohm load??
Did you re-enable telnet in the startup script after the upgrade? If you are using the telnet ADS script, are you using the right model number, as it changes in later firmware and after a cross flash.
There is no change in the image when I set it to S11. Sorry about the mixup, I do
understand the difference between S11 and S21, etc
The Load is on the "RF Input" I assumed that would be "Port 1", but I have tried
to add the load on the TG port, and nothing changes.
Thanks,
rudi
Port 1 is TG, Port 2 is RF In.
S11 measurements are reflection measurements on Port 1 whereas Port 2 measurements (S21) come from RF In.
The garbage you see is a product of interpolation from too few points (201) and a wide frequency sweep.
In the VNA menu you can set the points to the max of 751 and a totally different result will be produced and likewise with a narrow sweep.
Jump over into the SVA thread for more info and stuff on Cal kits:
https://www.eevblog.com/forum/testgear/siglent-sva1015x-1-5ghz-spectrum-vector-network-analyzer-(coming)/