Maintenance
4-17
7
1
2
3
4
5
Transmission test
• Connect the antenna cable to the "ANT" socket (see Figure 2.1, item 6) using the torque
wrench.
• Set the “I/O” switch (see Plate 6.IV, item 2 or9) on the primary convertor to “I”.
• Select a IDR IDO 3G channel (see Section 3.4.2).
• Select the 1.5 W transmission power level (see Section 3.4.3).
• Enable transmission (see Section 3.4.4).
• Make a communication in IDR mode on the selected channel using the 2 TETRAPOL
terminals.
• Repeat the test with a transmission power level of 4 W, 10 W and 15 W.
• Check that no alarm message appears on the screen during the test.
If there is a problem, refer to Sheet A-1.
• Check that the communication is set up correctly.
If there is a problem, refer to Sheet A-6.
COMPLEMENTARY OPERATION(S)
• Set the “I/O” switch (see Plate 6.IV, item 2 or9) on the primary convertor to “O”.
SHEET
POWER LEVEL
SELECTED
NOMINAL POWER
("ANT" OUTPUT)
NOMINAL SWR
("ANT" OUTPUT)
POWER OUTPUT
MEASURED
("ANT" OUTPUT)
SWR MEASURED
("ANT" OUTPUT)
1.5 W
31.8 dBm
+
2 dB
< 2
4 W
35.8 dBm
+
2 dB
< 2
10 W
40 dBm
+
2 dB
< 2
15 W
41.8 dBm
+
2 dB
< 2
Table 4.9
POWER AND SWR AT ANTENNA OUTPUT MEASUREMENTS
