User's Manual

18 68P80801E35-A 9/1/2001
Troubleshooting EBTS System Manual - Vol 2
Generation 2 Single Channel BR Station Verification Procedures
NOTE
RX Path1 RSSI must read -80dBm ±1dBm for the BER
Floor verification to be accurate. Adjust the output
level of the R2660 to compensate for loss in the test
cables and three-way splitter.
BER Floor Measurement: Generation 2 Base Radio with RFDS
1. Verify that the R2660 is set to 810MHz and is producing a power level of
-80dBm. (See “Receiver Verification Procedure: QUAD Base Radio with
RFDS” on page 61.)
2. Using the MMI commands below, issue the command to put the BR into
single branch mode. If the resulting bit error rate for receiver branches 1, 2,
and 3 is less than 0.01%, the receiver has passed the test.
3. Check Receiver 1. At the prompt, type (inputs are in bold, comments are in
italics):
field> freq -orxch1 -f810
field> enable -orxch1 -soff
field> enable -orxch1 -dbr1 -son
field> ppc -orxch1 -mchn -s1
field> ppr -orxch1 -a1000 -r1
field> enable -orxch1 -soff
field> enable -orxch1 -dbr2 -son
field> ppr -orxch1 -a1000 -r1
(skip this step if the system is configured for 2 Branch Diversity)
field> enable -orxch1 -soff
field> enable -orxch1 -db3 -son
field> ppr -orxch1 -a1000 -r1