Service Manual

251
6802800U74-AN
Chapter 6: Configuration and Testing
Step example:
RX1 delta : -100-(-96) = -4
RX2 delta: -100-(-97) = -3
RX3 delta: -100-(-96) = -4
13 Set the RSSI calibration values using the results from step 12 using the following command:
fcp -orxch1 -pcal_br<receiver number> -v<calculated calibration value>
Step example:
fcp -orxch1 -pcal_br1 -v-4
fcp -orxch1 -pcal_br2 -v-3
fcp -orxch1 -pcal_br3 -v-4
NOTICE: RSSI calibration is not operational before the BR is reset.
14 Repeat step 2 and then step 5 through step 13 for all branches until the RSSI level is correctly
calibrated for all branches.
15 Reset the BR. Use the following commands:
sge -orx_all -soff
reset -ocontrol
16 Verify RSSI for receive path 1, 2, and 3. Type ppr -orxch1 -a10 -r1
The following example shows a correctly calibrated RSSI level for all 3 receive paths.
Step example:
Receiver Number
=
1
2
3
SGC Attenuation
=
26214
26214
26214
Sync Location
=
276
264
258
Sync. Amplitude
=
131070
131070
131070
Total Bits
=
2592
2592
2592
Bits in Error
=
0
0
0
BER (%)
=
0.0000000000
0.0000000000
0.0000000000
RSSI (dBm)
=
-100
-100
-101
Postrequisites: BR-Arch-2 only: Verify and tune the receivers for the high power setting. See
Verifying and Tuning the Receiver RSSI Levels in a High Power Setting for BR-Arch-2 on page 251.
6.5.4.3.4
Verifying and Tuning the Receiver RSSI Levels in a High Power Setting for BR-
Arch-2
Receivers in BR-Arch-2 can work with two different power levels and require additional actions to fully
configure their RSSI levels. Perform this procedure only in BR-Arch-2 architecture.
Prerequisites:
• Ensure that the RSSI levels for low power setting are properly configured. See Verifying and Tuning
the Receiver RSSI Levels on page 249.
• Set up the equipment for receiver verification and tuning. See Setting Up the Equipment for
Receiver Verification on page 248.
• Contact your local Motorola Solutions representative or Technical Support to obtain required
password.