Tuning Of Transmitter Power Levels - Nokia NME-2A Series Tuning Instructions

P.A.M.S.
Technical Documentation

4. Tuning of Transmitter Power Levels

This adjustment loads the power levels of the phone transmitter into the
EEPROM. When doing this, a pulse power meter or spectrum analyzer
must be used.
Note: Before adjusting the power levels, you must be sure the test
equipment have a measuring uncertainty less than 1 dB at
desired levels.
Power levels programming:
– Connect pulse power meter or spectrum analyzer to antenna connec-
tor.
– Check that continuous mode channel 60.
– Select adjustments menu option "TX Power Tuning" and press Enter .
– Press Y .
– Start at Low–Powerlevel 15. Use F9 and F10 to tune the output with
the DA step (don't tune it with the co–efficient !)
Secondly adjust power level 10 and finally level 2. To tune level 10
and 2, use the +/– keys. To change power levels, use up/down keys.
Power
level
2
3
4
5
6
7
8
9
10
11
12
13
14
15
– Press F3 to calculate all other levels.
– Once all TX levels are OK, press Esc and store readings in phone EE-
PROM with pressing Y .
Issue 2 05/2000
Tuning P /dBm
OUT
(13.2 V, CH60)
39 tune! Pwr coef
37
35
33
31
29
27
25
23 tune! pwr coef
21
19
17
15
13 tune! D/A step
NME–2A
Tuning Instructions
Page 13