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Figure 135 Phoenix Power Level Tuning menu
2. Select data source and band, then press Start. It is recommended to have saved data from a known good
phone to the PC.
3. Connect the module jig RF output to the measurement instrument. The power must be tuned in only high
TX PA mode in all bands of GSM900, GSM1800 and GSM1900.
4. For each band, tune the power by adjusting the coefficient in the Tx Power Level Tuning window in Phoenix
until the target level is reached (measured on the spectrum analyzer). Remember to take into account the
external power loss, that is, the loss of the cable and the external attenuator at the spectrum analyzer input.
The coefficient must be tuned for the base level and other power levels (PL) marked with bold letters in
Phoenix (GSM900: PL19 / 15 / 5, GSM1800/1900: PL15, 11, 0). The target power levels are specified as listed
in the following table:
Table 29 Spectrum analyzer settings for Tx level tuning
GSM900
GSM1800
GSM1900
PL 5
32.5 dBm
PL 0
29.5 dBm
PL 0
29.5 dBm
PL 15
13.0 dBm
PL 11
8.0 dBm
PL 11
8. 0dBm
PL 19
5.0 dBm
PL 15
0.0 dBm
PL 15
0.0 dBm
Base PL
-30.0 dBm
Base PL
-30.0 dBm
Base PL
-30.0 dBm
5. When the tuning for the levels marked with bold letters has been completed, press Calculate coefficients to
calculate the other power levels with non-bold letters.
RM-25
Nokia Customer Care
RF troubleshooting
Page 7–34
Company Confidential
9235618 (Issue 2)
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