Nokia 9210i Servicehandbuch
PAMS
Technical Documentation
RAE-5
3. RF+System Module KL8
Page 3 – 56
Issue 1 04/02
Connections
Antenna
One common antenna resonating on both bands is used. The antenna is lo-
cated in the cover part. The RF connection between the KL8 module and the
antenna is a coaxial cable.
cated in the cover part. The RF connection between the KL8 module and the
antenna is a coaxial cable.
RF connector and antenna switch
There are two antenna connectors in KL8 module. One is the connector for ex-
ternal (car kit) antenna and it has an integrated mechanical switch function.
This connector is integrated with the system connector. The other connector is
used for connecting the coaxial cable which leads to the communicator’s own
antenna.
ternal (car kit) antenna and it has an integrated mechanical switch function.
This connector is integrated with the system connector. The other connector is
used for connecting the coaxial cable which leads to the communicator’s own
antenna.
Table 42. External antenna connector and switch
Parameter
Min.
Typ.
Max.
Unit/Notes
Operating frequency range
880
1880
MHz
Insertion loss in GSM band
0.2
dB
Insertion loss in DCS band
0.4
dB
Isolation in GSM band
14
dB
Isolation in DCS band
12
dB
Nominal impedance
50
ohm
VSWR, GSM band
1.3
VSWR, DCS band
1.5
Table 43. Internal antenna connector
Parameter
Min.
Typ.
Max.
Unit/Notes
Operating frequency range
880
1880
MHz
Insertion loss in GSM band
0.2
dB
Insertion loss in DCS band
0.4
dB
Nominal impedance
50
ohm
VSWR
1.5
RF–System interface
The System block resides on the same PWB with the RF block yet there is no
physical connector between them. The electrical interface to the System block
is described below.
physical connector between them. The electrical interface to the System block
is described below.