User Guide

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:
• Temperature +25
°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)
029.5 +/-3
128 +/-3
226 +/-3
324 +/-3
422 +/-3
520 +/-3
618 +/-3
716 +/-3
814 +/-4
912 +/-4
10 10 +/-4
11 8 +/- 4
12 6.5 +/-4
13 5 +/-4
14 3.5 +/-5
15 2 +/-5