User Guide
Table Of Contents
- 7 - RF Description & Troubleshooting
- 1. RF Description and Troubleshooting
- 2. RF Implementation in NHL-12
- 3. Introduction to RF troubleshooting
- 4. Receiver Description and Troubleshooting
- 5. Transmitter Description and Troubleshooting
- 6. Additional Information on EDGE Troubleshooting
- 7. Synthesizer Description and Troubleshooting
- BACK TO MAIN PAGE
NHL-12
Nokia Customer Care 7 - RF Description & Troubleshooting
14 COMPANY CONFIDENTIAL Issue 2 10/2004
Copyright © 2004 Nokia. All Rights Reserved.
Receiver characteristics
Item Values, GSM850/1800/1900
Type Direct conversion, Linear, FDMA/TDMA
LO frequencies 3476...3576 MHz / 3610...3760 MHz/
3860...3980 MHz
Typical 3 dB bandwidth +/- 91 kHz
Sensitivity min. - 102 dBm (normal condition)
Total typical receiver voltage gain (from
antenna to Rx ADC)
86 dB
Receiver output level (RF level -95 dBm) 230 mVpp, single-ended I/Q signals to Rx
ADCs
Typical AGC dynamic range 83 dB
Accurate AGC control range 60 dB
Typical AGC step in LNA 30 dB GSM1800/1900 25 dB GSM850
Usable input dynamic range -102... -10 dBm
RSSI dynamic range -110... -48 dBm
Compensated gain variation in receiving band +/- 1.0 dB