RF Troubleshooting Instructions
CCS Technical Documentation
Page 88
¤
Nokia Corporation
Issue 1 10/02
JXS-1 Shield Box
Metal shielded box, mentioned to avoid disturbing RF signals, has a great effect to TX
output power, Bit error and Signal Strength reporting results, since the surface of
shielded box is reflecting RF-waves and therefore changing RF performance.
In following pictures the behavior of JVB-1 Docking Station with MJF-6 adapter is pre-
sented in JXS-1 Shield Box and without the box (coupler).
The measurements are done in the following conditions
:
• Tempe25
°C (77 °F)
• NOKIA 6590 Cellular Phone
• NOKIA JXS-1 Shield Box
• NOKIA JBV-1 Docking station with antenna coupler (1900 MHz)
• RF-Attenuation for MJF-6 and cable is 4.5dB
Table 1: TX Output Power Tolerances
PCL
Target (dBm)
Tolerance (dBm)
0
29.5
+/-3
1
28
+/-3
2
26
+/-3
3
24
+/-3
4
22
+/-3
5
20
+/-3
6
18
+/-3
7
16
+/-3
8
14
+/-4
9
12
+/-4
10
10
+/-4
11
8
+/-4
12
6.5
+/-4
13
5
+/-4
14
3.5
+/-5
15
2
+/-5