5-28
SECTION 5
COMMON PRACTICES
5-3 DUPLEX
This section offers suggestions for equipment and screen setups for a common Duplex
practice.
This procedure configures the Duplex Operation Screen to perform a Receive and
Generate Sensitivity Check.
o Press DPLX Mode Key.
o Set Duplex Receive:
RF
455.0000 MHz
Input
ANT
Atten
0 dB
Demod
FM
IF BW
15 kHz
o Set Squelch Control Knob fully Counter Clockwise.
o Set Duplex Generate:
o RF
455.0000 MHz
Offset
0.0000 MHz
Output
AUX
Level
-40.0 dBm
GEN2
FM
GEN1, DATA and DTMF
OFF
Deviation
3.30 kHz
Format
TONE
Freq
1000.0 Hz
o Connect AUX output connector to ANTENNA input connector.
o Connect DEMOD OUT connector to SINAD IN connector.
o Cursor to RECEIVE field and press F1
ZOOM
.
o Cursor to LINE field and press F6
CONFIG
.
o Set filters:
o MOD METERS HPF,
300 Hz
/LPF,
4 kHz
/WB,
OFF
DTMF/SINAD BPF,
C-MSG
AF CNTR/DECODE LPF,
20 kHz
DATA DECODER LPF,
20 kHz
SPEAKER/PHONES
WB
DEMOD OUT
DET OUT
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