Icom IC-F11 Service Manual page 17

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
• Connect a standard signal generator to
the antenna connector and set as:
Frequency
Level
Modulation
Deviation
• Receiving
CONVENIENT:
SQUELCH 1 • Operating frequency:
LEVEL
[SQL]
• Channel spacing
• Connect a standard signal generator to
the antenna connector and set as:
Frequency
Level
Modulation
Deviation
• Receiving
2 • Receiving
*The output level of the standard signal generator (SSG) is indicated as the SSG's open circuit.
1
* IC-F11, F11S, F12 and F12S. *
ADJUSTMENT CONDITION
146.000 MHz*
151.505 MHz*
:Narrow
: 146.000 MHz*
151.505 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.
160.000 MHz*
156.956 MHz*
: Wide
: 160.000 MHz*
156.956 MHz*
: 0.2 µV* (–121 dBm)
: 1 kHz
: ±3.5 kHz
2
IC-F11BR only.
MEASUREMENT
UNIT LOCATION
Top Connect a SINAD meter with an
8 Ω load to the [SP] jack.
1
panel
2
1
2
or
Top Connect a SINAD meter with an
1
panel 8Ω load to the [SP] jack.
2
1
2
5 - 6
VALUE
Minimum distortion
level
12 dB SINAD
At the point where
the audio signals
just appears.