User Guide

PAMS
Technical Documentation
NSE–8/9
Troubleshooting
Page 40
Issue 1 07/99
5. PCN Transmitter
5.1 . General instructions for PCN TX troubleshooting
Apply a RF–cable to the MJS–13 RF–connector to allow the transmitted
signal 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
ontinous Alt+c
TX D
ata Type: Random Alt+d, r
Chan
nel: 700 Alt+n, 700
A
pply Alt+a
5.2 . Path of the transmitted PCN signal
This path defines the general route of the transmitted signal:
COBBA_GJP (N200), SUMMA (N700), 232 MHz SAW Filter (Z702),
CRFU3 (Upconverter N600), PCN Filter (Z603), PCN Buffer (N502), PCN
Filter (Z502), MMIC PA (N501), Directional Coupler (L500), TX/RX Switch
(Z504), Diplexer (Z503), Antenna.
The related component number(s) are defined inside (.).
There is also power detection (V500) and power control circuits inside
SUMMA for transmitter power control.