User Guide

CCS Technical Documentation System Module
RH-25
Issue 1 10/2003 ©Nokia Corporation Confidential Page 33
Antenna Circuit
The antenna circuit stands for duplex filters and diplexer. The cellular band duplex filter
is band pass type SAW filter with typical insertion loss about -2.0dB. The PCS band
duplex filter is band stop (for receiver band) type ceramic filter and it's typical insertion
loss is about -1.7dB. Insertion losses of diplexer are -0.45dB and -0.55dB (at maximum)
for cellular and PCS band, typical values being about -0.30dB and -0.35dB.
RF Performance
The output power tuning target for power level 2 after diplexer (or after switch for exter-
nal RF) is +27.3dBm for p/4 DQPSK type of modulation and +24.5dBm for FM type of
modulation. Power levels downwards from PL2 are -4dB below next to highest power
level, PL10 being -4.7dBm (and PL7 +6.5dBm with FM type of modulation). Modulation
accuracy and ACP shall be within limits specified in IS-136/137.
Table 7: 800 MHz digital TX
Table 6: 800 MHz analog TX
Power
level
RF power at external
Antenna Pad (dBm)
Tuning target
tolerant (dB)
Testing limits (dB)
2 24.8 +/- 0.25 0.5/-0.5
3 22.0 +/-0.5 +/-2.0
4 18.5 +/-0.5 +/-2.0
5 14.5 +/-0.5 +/-2.0
6 10.5 +/-0.5 +/-2.0
7 6.5 +/-0.5 +/-2.0
Power
level
RF power at external
Antenna Pad (dBm)
Tuning target
tolerant (dB)
Testing limits (dB)
2 27.3 +/- 0.25 0.5/-0.5
3 23.3 +/-0.5 +/-2.0
4 19.3 +/-0.5 +/-2.0
5 15.3 +/-0.5 +/-2.0
6 11.3 +/-0.5 +/-2.0
7 7.3 +/-0.5 +/-2.0
8 3.3 +/-0.5 +/-2.0
9 -0.7 +/-0.5 +/-2.0
10 -4.7 +/-0.5 +/-2.0