CCS Technical Documentation
NHM-1
Issue 1 11/03
Copyright
Nokia. All rights reserved..
Page 51
NHM-1 GSM Tuning Guide
General Remarks on GSM RF tuning
•
RF tunings must be made in the same order as shown in this docu-
ment.
The order of the menu items in the Phoenix service sofware may
be different.
•
If baseband tunings are needed, they should be made before the RF
tunings
•
After tuning is complete the mode must be set manually to dual mode.
This must be done to ensure that phone is not registering only to
WCDMA mode!
•
Avoid unnecessary tuning – factory tuning values are always the most
accurate ones.
•
Views in this document may change as the service software is devel-
oped. Please refer to the Phoenix help files, phone model specific ser-
vice manual and bulletins for help.
Service Tool Concept for RF Tunings
RF tunings can be carried out in
MJS-43 Module Jig
JBV-1 Docking station equipped with MJS-11 Docking Station Adapter for NHM-1
phones.
Power to MJS-43 or JBV-1 should be supplied from an extarnal DC power suply, not FPS-
8 prommer
Remember cable attenuation when setting required RF levels
