Tn Tx Limiting Po Cell (Or Pcs) Is95, Low Channel (Or Lowmid, Midlow, Mid, Midhigh, Highmid, Or High Channel); Tn Tx Limiting Cell (Or Pcs) Cdma2000: Po - Nokia NPD-4 Series Technical Documentation Manual

CCS Technical Documentation
Manual Verification: Use the same method as for the cell band described in the TN TX RF
AGC Cell Po (0) section, but set the phone to transmit in PCS on channel 600.
Troubleshooting: Check Robin (N801) according to Tables 1, 4, and 5. Also check D400,
which generates the PDM signals.
TN TX Limiting Po Cell (or PCS) IS95, Low channel (or LowMid, MidLow, Mid,
MidHigh, HighMid, or High channel)
This tuning provides an upper limit on the transmit power while in Cell (or PCS) IS95
mode. The phone is set to transmit and TxdBCtr is adjusted for the maximum transmit
power.
The result is a power level in dBm, which is the maximum allowed. This is done on each
of the seven channels.
Manual Verification: Using Phoenix, set the phone to local mode, then turn on the Cell
(or PCS) transmitter set to each of the channels in the list below.
Using the RF Tuning window, adjust TxdBCtr in the "values" dialog box until the TX power
— measured on the RF connector with a spectrum analyzer — is within the limits on each
of the following channels.
Channel
Low
LowMid
MidLow
Mid
MidHigh
HighMid
High
Troubleshooting: If the maximum cannot be reached, either a component in the trans-
mitter has too much loss, or not enough gain. Troubleshoot the Cell (PCS) transmitter,
with the phone set to the same channel as the failed channel.

TN TX Limiting Cell (or PCS) CDMA2000: Po

Same as previous tuning, except that CDMA2000 (C2K) modulation is used instead of
IS95.
Explanation of Result: See previous tuning.
Manual Verification: Same as previous tuning, except choose the CDMA 2000 tuning in
the RF Tuning window.
Issue 1 02/2003
Cell PCS
991 25
107 200
245 400
384 600
512 800
660 1000
799 1199 (1199 not a voice channel,
but used in tuning)
Nokia Corporation
Troubleshooting — RF
Confidential
NPD-4
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