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How do I make measurements on low level over-the-air CDMA signals using the E7495A/B Wireless Base Station Test Set?

E7495A/B Options 810, 811, and 812 include a pre-selector filter that attenuates out-of-band signals. This reduces the overall signal input into the E7495A/B and allows the built in auto-ranging feature to increase the IF gain. This lowers the noise floor and increases sensitivity for measuring low-level over-the-air signals.

The pass band of the pre-selector filter for each option is as follows:

  • Option 810 (Cellular): 869 to 894 MHz
  • Option 812 (Korean PCS): 1805 to 1880 MHz
  • Option 811 (PCS): 1930 to 1990 MHz