Icom IC-F11, Руководство по обслуживанию

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