Hello everyone,
I recently received a liberated SSA3021X+, now I'm using it to get into the world of RF.
I seem to have stumbled over a bug though: I connected my SDG6000X to the SVA. It is set to 120 MHz sine @ -20 dBm. This works great.
Then I want to measure harmonics. The automated measurement works great, but only with RBWs >= 30 Hz. If I set it to 10 Hz or lower, the fundamental and all harmonics will be displayed with an amplitude that is above the reference level. If I set the reference level to +30 dBm, the fundamental will be measured at +36 dBm, with harmonics up to 6 dB above that. Changing VBW has no influence.
Now the funny thing is that I tried to reproduce it after playing around with a different bug, and then I got an error message "Invalid RBW" when trying to get below 30 Hz. After a reboot, I could go below 30 Hz again and reproduce the issue.
The other bug is: While Harmonics measurement is active, changing the detector from "Pos Peak" to anything else either
* freezes the measurement. The yellow star will appear is it seems to look for the fundamental again, but after it's finished, the graph is not updated anymore. Or:
* will also create "measurements" with extremely high fundamental and harmonic amplitudes. The amplitude even increases with every change between "Neg Pos", "Sample" etc., saturating at almost 200 dBm.
Can anyone reproduce those issues? I'm on firmware 3.2.2.6.0R7.
Does anyone with an SVA1015X have input N-type connectors that become quite hot to the touch after about 30-45 minutes?
Yes, I have that too. But a lot of measurement devices seem to get warm in order to maintain a stable temperature, so I wouldn't worry about it. Just a weird spot to get warm.