Wrong Internal Antenna Installed - Nokia RH-3 Series Troubleshooting - Antenna

RH-3
Troubleshooting — Antenna
If either the RF feed pin or ground pin are broken, or bent such that either pin will not
touch the PWB, then the internal antenna must be replaced. If the springs for the RF or
ground pin appear damaged, then the internal antenna must be replaced.
If the RF feed pin of main antenna doesn't touch the PWB, then the antenna gain will
degrade by more than 25 dB and GPS antenna will be detuned. If the ground pin of main
antenna doesn't touch the PWB then the antenna gain may degrade about 5 to 10 dB
and GPS antenna will be detuned.
If the RF feed pin of GPS antenna doesn't touch the PWB, then the GPS antenna gain will
degrade by more than 20dB. If the ground pin of GPS antenna doesn't touch the PWB,
then the GPS antenna gain may degrade more than 5dB.

Wrong Internal Antenna Installed

The RH-3/RH-3P and RH-17 antennas share the same mechanical interface with the
D-cover. So either antenna can be installed in either phone. However, there are three
important differences between RH-3/RH-3P and RH-17 internal antennas:
1 Models 2285 and 2270 RH-3/RH-3P antenna have a GPS strip (antenna) while
the RH-17 antenna does not
2 The slot pattern is very different between the two antennas; and
3 RH-3/RH-3P and RH-17 antennas are marked on their radiators with "F" and "H"
respectively. See Figure 10.
Page 10
Figure 9: Back view of RH-3/RH-3P internal antenna
Nokia Corporation
CCS Technical Documentation
Confidential Issue 1 06/2003