User Guide
CCS Technical Documentation Troubleshooting — RF
RH-17
Issue 1 04/2003 Nokia Corporation Confidential Page 33
the PDM signals. Check AGC PDM voltages according to Table 1.
Test 61 - 67 TN TX Gain Comp Cell Po MD (or LO, LM, ML, MH, HM, or HI)
Description for this and next tuning:
This tuning ensures that the value of TxdBCtr correctly corresponds to the absolute TX
output power. On the mid channel, with TxdBCtr set to a specified value, G_Offset is
adjusted so that the output power is -8.0 dBm, and that value of G-Offset is recorded
(which is an absolute value) in the next tuning. The output power in dBm is recorded in
this tuning. After this is done on the mid channel, the channel is changed to each of the
other channels, and output power is reported. (G_offset is not adjusted on the other
channels as it was on the center channel, just the output power is recorded).
Explanation of Result:
The result is the transmitted power in dBm, which should be -8.25 to -7.75 dBm.
Manual Verification
Set the phone to local mode and program it to Cellular CDMA RX/TX mode on channel
384 using the Main Mode window.
Using the Phoenix PDM Control window, adjust Tx RF AGC "values" dialog box until the
TX output power (measured on the RF connector with a spectrum analyzer) is equal to -
8.25 to -7.75 dBm. Once this is done on the center channel, change to each of the other
channels using CDMA Rx/Tx screen, and record the power. Do not adjust Tx RF AGC on
the other channels, just record the power. It should be within the limits listed below.
D) Troubleshooting:
If -8 dBm cannot be attained, troubleshoot Cell TX as described in the beginning of this
document.
Test 68 TN G_Offset Cell MD
Description:
See description of previous tuning. This step reports G_Offset.
Channel Cell Frequency Range for output power, in dBm
Low 991 824.04 MHz -11.5 to -4.5
LowMid 107 828.21 MHz -11.0 to -4.0
MidLow 245 832.35 MHz -11.0 to -4.0
Mid 384 836.52 MHz -8.25 to -7.75
MidHigh 512 840.36 MHz -10.0 to -3.0
HighMid 660 844.80 MHz -10.0 to -2.0
High 799 848.97 MHz -13.5 to -5.0