Chapter 9 273
BERT
Measuring RF Loopback BERT with Option 300
5. Press Timeslot # > 2 > Enter.
Press
Timeslot Type > Normal.
Press
Configure Normal > E > Multiframe Channel > TCH/FS > PN9 or PN15.
NOTE If the default training sequence (TSCO) does not match the training sequence sent by the
BTS, press Return > Return > TS and select the proper training sequence.
6. Press
Return > Return > Return > Timeslot Off On to On.
7. Press Timeslot # > 1 > Enter.
Press
Timeslot Type > Normal > Configure Normal > E > Multiframe Channel > TCH/FS > PN9 (or PN15).
Press
Return > Return > Return > Timeslot Ampl Main Delta to Delta > Timeslot Off On to On.
Repeat these steps for timeslot 3.
8. Press
Amplitude > More (1 of 2) > Alternate Amplitude > Alt Ampl Delta > 50 > dB.
9. To set up traffic channel 124 in GSM mode:
Press
Frequency > More (1 of 2) > Freq Channels.
Press
Device (BTS MS) to MS > Channel Band > GSM/EDGE Bands > P-GSM Mobile.
Press
Freq Channels Off On to On.
Press
Channel Number > 124 > Enter.
Refer to Figure 9-4. The active entry area displays the following:
Channel: 124 (914.80000000MHz)
To Next Page
Loading...
