User`s guide

Base Station Emulator Mode 3
E6651A User’s Guide 39
CINR Test
Upon establishing two way communications, the E6651A can
adjust the CINR value of the transmitted signal.
1 Set the Downlink CINR Test Mode: After establishing
two way communications, press in the BSE Mode
Selection Menu to select .
2 Run the Downlink CINR Test: 4 test modes are available:
OFF, Preamble, Pilot and Hybrid.
• OFF: signal with no interference is transmitted.
• Preamble: interference is added in signal in Preamble
portion to produce signal with designated CINR value.
• Pilot: interference is added in signal in Pilot portion to
produce signal with designated CINR value.
• Hybrid: interference is added in signal in Preamble and
pilot portions together to produce signal with
designated CINR value.
3 Adjust CINR value: use the Knob or Numeric Keys to select
the desired CINR value of transmitting signal.
4 Measure the Signal Quality: In Downlink Test Mode, the
E6651A transmits a downlink signal that is only available
for measurement at the subscriber station. Contact the SS
vendor for a testing tool that may be connected to the SS
for downlink signal performance measurement.
Settings
Parameter Settings