Multi-Channel Attenuation Control Units
Technical Overviews
Keysight Technologies
Multi-Channel Attenuation Control Units
J7204A/B (4-channels)
DC to 6/18 GHz
J7205A/B (5-channels)
DC to 6/18 GHz
Key Features
–Exceptional 0.03 dB insertion loss repeatability per section for the entire 5 million cycles ensures accuracy and reduces calibration intervals
–Excellent attenuation accuracy and flatness ensures precise measurements
–Multi-channel attenuation path (up to 5-channels) enables multi-DUT measurements at one time
–LAN and GPIB interface with soft front panel provide easy connectivity, programming flexibility and control
Mobile Receiver Sensitivity Test
The receiver sensitivity test measures a receiver’s performance using known signal conditions which include: modulation and coding type, SNR, and power input levels. Using the specified conditions, receivers must be able to decode data bits with a specified bit error rate (BER) at different input power levels.
External step attenuators are normally used in mobile receiver sensitivity test as they provide accurate power levels. They allow for an extremely accurate power measurement where the power level from the source can be kept constant leaving the attenuator to handle the signal conditioning from 0 dB up to 121 dB. In this case, the power level linearity problem at the source itself can be eliminated.
The multi-channel attenuation control units provide calibration data (as an option) to allow you to do a correction on the attenuation value and provides you with the exact input power level for each DUT. In addition to the superb repeatability of 0.03 dB and excellent attenuation accuracy and flatness, this method ensures the utmost accuracy and stability of the input power when performing receiver sensitivity test.
Specifications
Specifications refer to the performance standards or limits against which the J7204A/B and J7205A/B attenuation control units are tested at 25°C.
Typical characteristics are included for additional information only and they are not warranted specifications. Those denoted as “typical”, “nominal” or “approximate” and are printed in italic.