Wondering if anyone else is experiencing this same behavior. I am controlling the analyzer through GPIB. Firmware version is 14.06 (most current). Here is what I am doing and what I see happen.
*RST to preset the analyzer.
Set center freq to 2MHz, span to 50kHz, RBW to 1kHz, and turn on Marker Noise function.
I set sweep to single, turn on averaging, 30 sweeps, average type is video.
I send INIT; to start averaging, then watch *OPC waiting for completion of the 30 sweeps.
From this point on, the spectrum analyzer takes 3-10 seconds to process each GPIB transaction. What I want to do after the above is do a marker min search, then turn off averaging, turn off marker noise, then turn continuous sweeping back on. Each of these is done as a single command via GPIB to the analyzer and is taking 3-10 seconds to execute before the next command executes. The analyzer will remain in this "sluggish" mode until I preset it.
I have tried this on another E4407B that has 14.04 firmware and do not see this problem. However, the firmware update from 14.04 to 14.06 included improvements to GPIB timing and I was seeing issues with GPIB commands randomly having syntax problems, unterminated headers, etc with working code. The update to 14.06 has corrected that issue, but now I am seeing this slow down.
Anyone have a similar experience. Can anyone from Agilent address this? Is this a known issue? Will there be a firmware fix for it? Any work-arounds (without dumping 30 traces to the PC and letting it do the averaging and marker noise)?
Thanks for any suggestions or help.
Troy.
*RST to preset the analyzer.
Set center freq to 2MHz, span to 50kHz, RBW to 1kHz, and turn on Marker Noise function.
I set sweep to single, turn on averaging, 30 sweeps, average type is video.
I send INIT; to start averaging, then watch *OPC waiting for completion of the 30 sweeps.
From this point on, the spectrum analyzer takes 3-10 seconds to process each GPIB transaction. What I want to do after the above is do a marker min search, then turn off averaging, turn off marker noise, then turn continuous sweeping back on. Each of these is done as a single command via GPIB to the analyzer and is taking 3-10 seconds to execute before the next command executes. The analyzer will remain in this "sluggish" mode until I preset it.
I have tried this on another E4407B that has 14.04 firmware and do not see this problem. However, the firmware update from 14.04 to 14.06 included improvements to GPIB timing and I was seeing issues with GPIB commands randomly having syntax problems, unterminated headers, etc with working code. The update to 14.06 has corrected that issue, but now I am seeing this slow down.
Anyone have a similar experience. Can anyone from Agilent address this? Is this a known issue? Will there be a firmware fix for it? Any work-arounds (without dumping 30 traces to the PC and letting it do the averaging and marker noise)?
Thanks for any suggestions or help.
Troy.
Troy.