User Guide

Figure 148 Phoenix Power Level Tuning menu

2. 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.

3. 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 levels 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 11 Power level targets

GSM900 GSM1800 GSM1900

LV5 33.0dBm LV0 30.0dBm LV0 29.5dBm

LV15 13.0dBm LV11 8.0dBm LV11 8.0dBm

LV19 5.0dBm LV15 0.0dBm LV15 0.0dBm

Base -30.0dBm Base -30.0dBm Base -30.0dBm

4. 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.

5. When the coefficient calculation has been successfully done, press Save & Continue to save the new tuning

values into the phone memory.

The following figure shows the power level tuning at the GSM900 band.

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