Receiver Rf Test Points - Nokia 6088 Rf Description And Troubleshooting

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Receiver RF Test Points

For the test points in Figure 13, an external signal source of –25 dBm was injected to
the RF input. Set LNA GAIN STATE = 3 .The signal was then traced throughout the
receiver chains. An CMU200 call box is recommended. (Open non-signaling mode,
press the SG soft button, and then select CW.) Inject a continuous wave (CW) for
Cell (881.52MHz) at a fixed –25 dBm power level. Measurements were taken with
the RF Probe. Signal levels are approximate, and the accuracy may be +/- 2 dB or
more depending on the probe position and grounding.
2
3
Table 5 includes the descriptions and values for Rx RF troubleshooting test points shown
in Figure 13.
Test Point
1 LNA IN
2 RX SAW INPUT
3 RX SAW OUTPUT
Issue 1 10/2006
Figure 13: Receiver RF troubleshooting test points
Description
Table 5: Rx RF Test Points
© 2006 Nokia Corporation
RF Description and Troubleshooting
Value
-27dBm
-47dBm
-50dBm
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6088 (RM-218)
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