Nutsinee: there is a perfect explanation on why the HP 4395A is off by 2.5 dB. The 4395A using a True RMS detection method rather than a conventional logarithmic amplifier and envelope detector--as most other analyzers do (even many other HP Spectrum Analyzers). Therefore, when you are in NOISE mode on the 4395A, the displayed value is a TRUE measure of noise level (in V, A or W per root Hz). This is true in the HP 3588/89A, 4395A and 4396B. The 3585A/B and 4195A use log amps and envelope detectors so they will read 2.5 dB low. For more information, see (somewhat obscure) Agilent Product Note PN 4395/96-1, "How to Measure Noise Accurately Using the Agilent Combination Analyzers." The 4395A is a great tool and gets it right!
Hi, after running the analyser I see you save data on disk. Will you be able to send me the link for the disk please. Instead of the disk I am trying to save data on laptop. So, I have connected analyser to the LabView using Laptop. But I am unable to save the data on my laptop. There is only option to save data on disk or memory. From your experience could you give any suggestions please. I will really appreciate your respons.
Have you solved your problem? If not, an easy way is to use the "Connection Expert" software (IO Libraries from Keysight). When your 4395A is connected via the GPIB link, send these 2 commands: FORM4 , press the "SEND COMMAND" button OUTPDTRC? , press the "SEND & READ" button You will then receive serial data with a "," delimiter. Simply copy and paste into a text file, replacing commas with line breaks.
Thanks for the video.
you should get the technician to convert those old floppy drives into sd card readers
Nutsinee: there is a perfect explanation on why the HP 4395A is off by 2.5 dB. The 4395A using a True RMS detection method rather than a conventional logarithmic amplifier and envelope detector--as most other analyzers do (even many other HP Spectrum Analyzers). Therefore, when you are in NOISE mode on the 4395A, the displayed value is a TRUE measure of noise level (in V, A or W per root Hz). This is true in the HP 3588/89A, 4395A and 4396B. The 3585A/B and 4195A use log amps and envelope detectors so they will read 2.5 dB low. For more information, see (somewhat obscure) Agilent Product Note PN 4395/96-1, "How to Measure Noise Accurately Using the
Agilent Combination Analyzers." The 4395A is a great tool and gets it right!
Hi, after running the analyser I see you save data on disk. Will you be able to send me the link for the disk please. Instead of the disk I am trying to save data on laptop. So, I have connected analyser to the LabView using Laptop. But I am unable to save the data on my laptop. There is only option to save data on disk or memory. From your experience could you give any suggestions please. I will really appreciate your respons.
Have you solved your problem? If not, an easy way is to use the "Connection Expert" software (IO Libraries from Keysight).
When your 4395A is connected via the GPIB link, send these 2 commands:
FORM4 , press the "SEND COMMAND" button
OUTPDTRC? , press the "SEND & READ" button
You will then receive serial data with a "," delimiter. Simply copy and paste into a text file, replacing commas with line breaks.
Example:
-1.110120E+001,-2.322466E+001,-5.554843E+001,-6.284383E+001,-6.241705E+001,....................
replace "," by carriage+line feed
-1.110120E+001
-2.322466E+001
-5.554843E+001
-6.284383E+001
-6.241705E+001
....................