Rohde & Schwarz ESIB
The ESIB is a full compliant Spectrum analyzer/Receiver of Rohde & Schwarz.
The ESIB was formerly known as the ESI. Several products of Rohde & Schwarz are based on the ESIB receiver or are very similar:
- Rohde & Schwarz ESI
- Rohde & Schwarz ESIB
- Rohde & Schwarz ESPI
- Rohde & Schwarz ESCI
- Rohde & Schwarz FSP
- Rohde & Schwarz ESU
The ESIB developement has come to a halt, the ESIB is replaced by the Rohde & Schwarz ESU
RBW Filter settings
The ESIB has both 3 dB and 6 dB specific RBW filter settings. Some standards (like CISPR16) specify the use of 6dB RBW filters. If the ESIB is used in (scanning) receiver mode, the 6 dB RBW filters will always be used, because no 3 dB filters are implemented in the (scanning) receiver mode. According to R&S release notes, the 6 dB RBW filters in analyzer mode of the Rohde & Schwarz ESIB are only available in firmware version 2.07 and higher. RadiMation detects which firmware version is installed in the receiver, and, if the firmware version is 2.07 or higher, the ESIB will use the 6 dB filters in analyzer mode. ESIB receivers with a firmware version below 2.07 will use the 3 dB filters in analyzer mode.
Documentation
The programmer manual can be found here
Firmware
- Firmware version 4.01 was released on 2001, juni 29
- Firmware version 4.33 was the latest version available in 2006, Februar
QP detector
The QuasiPeak-detector is a very special detector. In difference to the MaxPeak-detector it has a defined minimum charge and discharged time:
After internal switching, ESIB waits until the measurement result has stabilized before it starts the actual measurement and from this time on counts the inserted measurement time.
This means the whole time on one frequency point is minimum equal MEAS TIME + CHARGE TIME + DISCHARGE TIME
