User Guide

PAMS
Technical Documentation
RAE-3
8. Troubleshooting
Page 8 – 121
Issue 1 06/01
TX_Data Type: Random
Use WinTesla to select:
PA N702, pin 4
Spectrum analyzer:
NO Check PA N702
Check Power Control Loop
YES
Check TXC
Pout = +8dBm, 902 MHz
Spectrum analyzer:
NO Check
Directional coupler L553
YES
RX/TX switch Z670
YES
(EGSM TX troubleshooting continued)
TX power Level: 15
Power = +21 dBm, 897, 6 MHz
L502
GSM TX OK
PA N702, pin 8 pwr>+1dBm, 902MHz
Spectrum analyzer:
NO Check
V801, PA buffer
R753 3dB att.
Figure 125.