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
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NHL-12
Nokia Customer Care 7 - RF Description & Troubleshooting
20 COMPANY CONFIDENTIAL Issue 2 10/2004
Copyright © 2004 Nokia. All Rights Reserved.
Figure 9:GSM1900 Rx I or Q signal (trace2), burst mode.
Figure 9, “GSM1900 Rx I or Q signal (trace2), burst mode.” :
GSM1900 receiver burst mode I or Q signal at ch 661 with input signal 1960.067MHz, level –90
dBm at RF-connector.
Trace2: With wider time scaling both monitoring and own Rx bursts are seen, 1
st
burst (shorter)
is monitoring and 2
nd
burst (longer) is own Rx burst.
Trace1: External LNA VCC supply voltage at burst mode, input level –90 dBm. Measured from
test point LNA_VCC.