Icom IC-F11 Service Manual page 55

SOFTWARE ADJUSTMENT – continued
Select an operation using [↑] / [↓] keys, then set specified value using [←] / [→] keys on the connected computer keyboard.
ADJUSTMENT
RX 1 • Operating frequency:
SENSITIVITY
[BPF T1]–[BPF T4]
• Channel spacing :Narrow
• Connect a standard signal generator to
the antenna connector*
Frequency
Level
Modulation
Deviation
• Receiving
CONVENIENT:
SQUELCH 1 • Operating frequency:
LEVEL
[SQL]
• Channel spacing : Narrow
• Connect a standard signal generator to
the antenna connector*
2
Frequency
Level
Modulation
Deviation
• Receiving
• Receiving
A: [F21], [F21S], [F22] and [F22S], B: [F21BR], C: [F21GM], D: [F22SR]
*The output level of the standard signal generator (SSG) is indicated as the SSG's open circuit.
1
*
In case of IC-F22SR, instead of the antenna connector, connect to the J7 as shown page 5-3.
ADJUSTMENT CONDITION
470.000 MHz
469.550 MHz
467.725 MHz
446.09375 MHz
1
and set as:
: 470.000 MHz
469.550 MHz
467.725 MHz
446.09375 MHz
: 10 µV* (–87 dBm)
: OFF
: ±1.75 kHz
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.
455.000 MHz
466.050 MHz
465.138 MHz
446.09375 MHz
1
and set as:
: 455.000 MHz
466.050 MHz
465.138 MHz
446.09375 MHz
: 0.2 µV* (–121 dBm)
: 1 kHz
: ±1.75 kHz
MEASUREMENT
UNIT LOCATION
Top Connect a SINAD meter with an
8 Ω load to the [SP] jack.
A
panel
B
C
D
A
B
C
D
or
Top Connect a SINAD meter with an
A
panel 8Ω load to the [SP] jack.
B
C
D
A
B
C
D
5 - 6
VALUE
Minimum distortion
level
12 dB SINAD
At the point where
the audio signals
just appears.