Motorola DIMETRA MTS 2, Инструкция по установке, настройке и базовому обслуживанию

Страница: 235 / 517

MTS 2 and MTS 4 Installation, Con
fi
guration and Basic Service Manual Receiver Veri
fi
cation Procedure
Receiver Verification Procedure
This procedure provides commands and responses to verify proper operation of the Base Radio receive path.
The Bit Error Rate (BER) measurement meets speci
fi
cations at less than 0.01% (1.0e-02%) to pass the process.
Procedure 6-9 How to Verify the Receiver
1
Switch on the power of the Base Radio.
2
Enter the Test Application mode and login.
Contact your local Motorola representative or Technical Support to obtain password.
3
At the prompt, type: freq -orxch1 . This command displays the receive frequency for the current
Base Radio. Record the result.
To set the receive frequency, use the command freq -orx_all -fXXX.XXXX .
For example, to set the receive frequency to 401.0125MHz, type freq -orx_all
-f401.0125 .
4
Use following commands to change TX and RX frequency if necessary. If you read the frequency
you want to use in the previous step, skip this step:
•
freq -otx_all -f394.0125
•
freq -orx_all -f384.0125
5
Type
sge -orx_all -son
and press
Enter
to enable system gain alignment.
6
At the prompt, type:
ptm -orx_all -mTCH_72 -s15 -tMulti_Frame_Trigger
–d-6
.
For Stabilock 4031/4032 use single slot only and delay 0:
ptm -orx_all -mTCH_72 -s8 –tFrame_Trigger –d0
It may be necessary to adjust the trigger delay set by the -d option.
7
At the prompt, type: enable -orxch1 -dbr1 -son . This command enables the receiver branch
under test and should enable br1, br2, or br3 respectively depending on the branches that you
are testing.
8
Set the signal generator to generate a T1 signal and inject to the relevant antenna port.
6802800U74-N September 2009
6-27