TESTS AND ADJUSTMENTS
3-26
Table 3-1 Normal operating power level
The output power can be read by means of the RMM Program or the Local Display/Keyboard.
3.1.3
LF Phase Adjustment
Figure 3-1 LF phase CSB illustration.
Figure 3-2 LF phase SBO illustration.
3.1.3.1 One-frequency system
Connect oscilloscope channel A to the BNC test connector labelled CSB located on LPA/GPA
Course 1 (2).
Set oscilloscope input mode to DC.
Adjust
150 Hz COU phase adj
R3 on Low Frequency generator LF1223A (Figure 3-5)
observing oscilloscope channel A until the waveform equals left hand graph in Figure 7-2.
LLZ Course
15W CSB
LLZ Clearance
15W CSB
GP Course
5W CSB
GP Clearance
0,5W CSB
DEMODULATION CSB: NORMAL
DEMODULATION CSB 10° LF PHASE ERROR
DEMODULATION SBO: NORMAL
DEMODULATION SBO 10° LF PHASE ERROR
