Icom IC-F51, IC-F50 service manual Software Adjustments Receiving, Convenient

ADJUSTMENT

ADJUSTMENT CONDITION

MEASUREMENT

VALUE

UNIT

LOCATION

RX

1

• Operating CH

: CH11

MAIN

Connect a SINAD meter with an

Minimum distortion

SENSITIVITY

• Connect a standard signal generator to

8 Ω load to the multi connector

level

[BPF T1],

the antenna connector and set as:

through the JIG cable (*OPC-

[BPF T2]

Frequency

: 136.000 MHz

966).

Level

: 10 µV* (–87 dBm)

Modulation

: 1 kHz

Deviation

: ±3.5 kHz

• Receiving

CONVENIENT:

The BPF T1, BPF T2 can be adjusted automatically.

q-1: Set the cursor to “BPF ALL” on the adjustment program and then push [ENTER] key.

q-2: The connected PC tunes BPF T1, BPF T2 to peak levels.

or

w-1: Set the cursor to one of BPF T1, T2 as desired.

w-2: Push [ENTER] key to start tuning.

w-3: Repeat w-1 and w-2 to perform additional BPF tuning.

S-METER

1

• Operating CH

: CH11

Push [ENTER] key on the connected computer keyboard to

[S-METER]

• Connect an SSG to the antenna con-

set “S6 level”.

nector and set as:

Frequency

: 136.000 MHz

Level

: 4.5 µV* (–94 dBm)

Modulation

: 1 kHz

Deviation

: ±3.5 kHz

• Receiving

2

• Set an SSG as

:

Push [ENTER] key on the connected computer keyboard to

Level

: 0.25 µV* (–119 dBm)

set “S1 level”.

Modulation

: 1 kHz

Deviation

: ±3.5 kHz

• Receiving

SQUELCH

1

• Operating CH

: CH9

Front

Internal speaker

Set “SQL level” to

LEVEL

• Connect an SSG to the antenna con-

panel

close squelch.

[SQL]

nector and set as:

Then set “SQL level”

Frequency

: 155.000 MHz

at the point

where

Level

: 0.18 µV* (–122 dBm)

the audio

signals

Modulation

: 1 kHz

just appears.

Deviation

: ±3.5 kHz

• Receiving