Nokia NPM-10 Series Troubleshooting Instructions page 42

NPM-10
Troubleshooting Instructions RF
Sweeptime 10 msec
RF Attenuation: 30 dB
Reference level: if you set this to 40 dBm, you can tune both the low band (target output
power of 32.0 dBm for power level 5) and highband (target output power of 29.5 dBm
for power level 0) at the maximum output levels. The reference level must be reduced, to
say 0 dB level when tuning the base level.
Trigger: Video. Set the level to 0 dbm. This must be lowered when you are setting the
base level (Base level target output power of -30 dBm). If you don't lower the video trig-
ger level to below –30 dBm when tuning the base level, the spectrum analyzer will not
be triggered when you are tuning the base level.
Center Frequency: 836.6 MHz (For GSM 850 band, channel 190 is used for Tx output
power tuning). For GSM 1900, Center frequency is 1880 MHz (mid Channel 661) for Tx
output power tuning.
Page 42
Nokia Corporation
CCS Technical Documentation
Confidential Issue 1 03/2003