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RM-235
RF troubleshooting
Rx chain
Low
Frequency
High
Frequency
Alternative steps
• For sweep mode tuning, set Mode to Local in the Operating Mode dropdown menu.
• In the Tuning menu, choose WCDMA→ Rx Calibration .
• Click Start.
• Select Band, "WCDMA2100 or WCDMA900".
• Check the Sweep Mode box.
• Click Tune.
• Setup the signal generator to correspond with the values on the
OK.
• Ensure Tuning Results are within limits specified in the table above: If values are OK, click Write to save
the values to the phone.
• Close the tuning window.
WCDMA transmitter tunings
Tx AGC & power detector (WCDMA)
Context
Tx AGC & power detector tuning has two purposes:
• to enable the phone to select the correct TxC value accurately in order to produce the required RF level
• to enable the phone to measure its own transmitter power accurately
There are two ways to perform the tuning. For an alternative method, see
Steps
1.
From the Operating mode drop-down menu, set mode to Local.
Issue 1
Band
2100 or 900
Figure 32 Pop-up window for WCDMA2100
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Min
Typ
-6
1.5 to 3.5
-5
-0.7 to 4.0
-5
-0.7 to 4.0
Max
6
5
5
Rx Calibration pop-up window and click
Alternative steps (page
Unit
dB
4–39).
Page 4 –33
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