Dear Agilent support,
we have an N9010A EXA Signal Analyzer with the VSA software.
What i would like to do is to record a very long time trace (several hours) to harddisk for offline analysis.
Ideally, i was thinking about a small C-application, remote controlling the analyzer over some LAN based protocol (e.g., VISA).
I found some examples, how to get single time traces with IQ data (up to the length of the internal buffer of ~ 4 MSamples). So if put the acquire command in a loop, i'll get continuous data.
My question is, can I acquire a realtime trace without gaps this way? This would be possible if there is some kind of double buffering implemented in hardware. Then I could read out one buffer while the measurement continues and fills the second buffer.
I speculate that this should be possible because the VSA software is able to do "real-time" measurements as well.
Thanks for any hints on this subject.
Best wishes
Michael
we have an N9010A EXA Signal Analyzer with the VSA software.
What i would like to do is to record a very long time trace (several hours) to harddisk for offline analysis.
Ideally, i was thinking about a small C-application, remote controlling the analyzer over some LAN based protocol (e.g., VISA).
I found some examples, how to get single time traces with IQ data (up to the length of the internal buffer of ~ 4 MSamples). So if put the acquire command in a loop, i'll get continuous data.
My question is, can I acquire a realtime trace without gaps this way? This would be possible if there is some kind of double buffering implemented in hardware. Then I could read out one buffer while the measurement continues and fills the second buffer.
I speculate that this should be possible because the VSA software is able to do "real-time" measurements as well.
Thanks for any hints on this subject.
Best wishes
Michael
I did a small experiment, fetching the IQ data over Telnet (SCPI). The transmission is way too slow for my application, even when binary transfer is turned on.
So now i'm wondering, how does the VSA application communicate with the spectrum analyzer?
It has a pretty good performance, showing the 4 MSample spectrum in just a few seconds.
Can i use the same interface to access the IQ data with a custom application?
Cheers,
Michael