User Guide

PAMS
Technical Documentation
RAE-3
8. Troubleshooting
Page 8 – 122
Issue 1 06/01
5.4 PCN Transmitter
General troubleshooting instructions
Apply a RF–cable to the RF–connector to allow the transmitted signal to act as
normal. RF–cable should be connected to measurement equipment or to at
least a 10–dB attenuator, otherwise the PA may be damaged.
Start Wintesla–Service–Software and
Select: P
roduct Alt+p
B
and b
P
CN p
Select: Te
sting Alt+e
R
F Controls r
TX
Power Level: BASE Alt+x, b
TX C
ontinuos Alt+c. . . . . . . . . . . . . . . . . . . . . . . . . . .
TX D
ata Type: Random Alt+d, r
Chan
nel: 700 Alt+n, 700
A
pply Alt+a. . . . . . . .
5.4.1 Path of the transmitted PCN signal
DET
RX/TX Switch
RX
RX
TX
TX
OUTP_D_TX/
OUTM_D_TX
OUTP_G_TX/
OUTM_G_TX
2
2
Last edit 13:35 07–02–00
Open collector
Open collector
GSM
PCN
VBATTRF
PWC
DET
TXP TXC
Vpctrl_fb Vpctrl_g
Vpctrl_p
RF
Controls
VTX_B_G
V_ANT_1/
V_ANT_2
2
PA
Diplexer
Dir. Coupler
TXC
TXP
VBATTRF
TXQ_0/TXQ_180
TXI_0/TXI_180
2
2
VTX
VTX_B_G
Antenna connector
Figure 126. EGSM TX signal
Buffer