Icom IC-F31GS Servise Manual page 16

SOFTWARE ADJUSTMENT – continued
Select an operation using [↑] / [↓] keys, then set specified value using [←] / [→] keys on the connected computer keyboard.
ADJUSTMENT
RX 1 • Operating freq. : 136.000 MHz
SENSITIVITY • IF bandwidth
[BPF T1] – • Connect a standard signal generator to
[BPF T4] the antenna connector and set as:
Frequency
Level
Modulation
Deviation
• Receiving
CONVENIENT:
The BPF T1–BPF T4 can be adjusted automatically.
q-1: Set the cursol to "BPF ALL" on the adjustment program and then push [ENTER] key.
q-2: The connected PC tunes BPF T1–BPF T4 to peak levels.
w-1: Set the cursol to one of BPF T1, T2, T3, or T4 as desired.
w-2: Push [ENTER] key to start tuning.
w-3: Repeat w-1 and w-2 to perform additional BPF tuning.
• Operating freq. : 136.000 MHz
S-METER 1
• IF bandwidth
[S-METER]
• Connect an SSG to the antenna con-
nector and set as:
Frequency
Level
Modulation
Deviation
• Receiving
• Set an SSG as :
2
Level
Modulation
Deviation
• Receiving
• Operating freq. : 155.000 MHz
SQUELCH 1
• IF bandwidth
LEVEL
• Connect an SSG to the antenna con-
[SQL]
nector and set as:
Frequency
Level
Modulation
Deviation
• Receiving
*The output level of the standard signal generator (SSG) is indicated as the SSG's open circuit.
ADJUSTMENT CONDITION
: Wide
: 136.000 MHz
: 10 µV* (–87 dBm)
: 1 kHz
: ±3.5 kHz
or
: Wide
: 136.000 MHz
: 14 µV* (–84 dBm)
: 1 kHz
: ±3.5 kHz
: 0.45 µV* (–114 dBm)
: 1 kHz
: ±3.5 kHz
: Wide
: 155.000 MHz
: 0.2 µV* (–121 dBm)
: 1 kHz
: ±3.5 kHz
MEASUREMENT
UNIT LOCATION
MAIN Connect a SINAD meter with an
8 Ω load to the multi connector
through the JIG cable (*OPC-
966).
MAIN
Front Internal speaker
panel
5 - 6
VALUE
Minimum distortion
level
Push [ENTER] key
on the connected
computer keyboard
to set "S3 level".
Push [ENTER] key
on the connected
computer keyboard
to set "S1 level".
Set "SQL level" to
close squelch.
Then set "SQL level"
at the point where
the audio signals
just appears.