Rohde & Schwarz ESU: Difference between revisions
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* Larger RBW at higher frequencies. | * Larger RBW at higher frequencies. | ||
* Using the receiver mode instead of the Time domain. | * Using the receiver mode instead of the Time domain. | ||
* Using the analyser mode instead of the Time domain. | |||
= Links = | = Links = | ||
Revision as of 11:30, 26 October 2009
The ESU is a full compliant Spectrum analyzer/Receiver of Rohde & Schwarz.
The ESU is the replacement for the ESIB.
Documentation[edit]
The programmer manual can be found here
Features[edit]
The ESU has a new feature compared to the ESIB en the ESPI. LAN is standard. It has what is called time domain scan. which is FFT functionality to get spectrum. This FFT option is an additional option that you need to pay for. note that at this moment the FFT method is not a valid way of getting the spectrum compliant. but when using is a pre-compliant way of getting the frequencies of the peaks it is. known special limitations are:
- min span in time domain scan is 10 times the RBW
- pre amplifier, can only be use from 1 kHz in receiver mode.
- Pre amplifier, can only be used up to 3.6 GHz. for the full range you need a special option.
Firmware[edit]
The latests known firmware (at 2009, october 14th) is: 4.33 SP1. The release notes of that firmware version can be found here
Time domain scan[edit]
Using a very small RBW on higher frequencies in combination with the Time domain scan will result in big files. This is caused by the fact that the ESU is taking 4 measuring point for each frequency. The step size is determined by the RBW.
Possible solutions are:
- Larger RBW at higher frequencies.
- Using the receiver mode instead of the Time domain.
- Using the analyser mode instead of the Time domain.