Receive Adjustment - Icom IC-F3021S Service Manual

6-4 RECEIVE ADJUSTMENT

Select an adjustment item using [↑] / [↓] keys, then set to the specifi ed value using [←] / [→] keys on the connected PC's keyboard.
ADJUSTMENT ADJUSTMENT CONDITION
RECEIVE NOTE:
"RECEIVE SENSITIVITY" must be adjusted before "S-METER." Otherwise, "S-METER" will not be
SENSITIVITY
adjusted properly.
[BPF (T1)]
1 • Channel
[BPF (T2)]
• Connect the SSG to the antenna connec-
tor and set as;
Frequency
Level
Modulation
Deviation
• Receiving
CONVENIENT:
The "RECEIVE SENSITIVITY" can be adjusted automatically.
1: Put the cursor on "BPF ALL" and push [ENTER] key.
2: The connected PC tunes BPF's to peak levels automaticaly.
S-METER 1 • Channel
[RSSI]
• Connect the SSG to the antenna connec-
tor and set as;
Frequency
Level
Modulation
Deviation
• Receiving
2 • Set the SSG as;
Level
• Receiving
SQUELCH 1 • Channel
[SQL]
• Close the squelch by adjusting the value of
[SQL] item on the CS-F3020 ADJ's screen.
• Connect the SSG to the antenna connec-
tor 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.
UNIT
: CH 2 [MIC/SP]
: 136.000 MHz
†
: +20 dBµ (–87 dBm)
: 1 kHz
: ±3.5 kHz
: CH 2 Push the [ENTER] key on the connected PC's keyboard to set
"S3" level.
: 136.000 MHz
†
: +23 dBµ (–84 dBm)
: 1 kHz
: ±3.5 kHz
Push the [ENTER] key on the connected PC's keyboard to set
†
: –7 dBµ (–114 dBm) "S1" level.
: CH 9 External
speaker
: 155.000 MHz
†
: –15 dBµ (–122 dBm)
: 1 kHz
: ±3.5 kHz
6 - 6
MEASUREMENT
LOCATION
Connect the SINAD meter
with an 8 Ω load to the JIG
jack
cable.
Connect an 8 Ω speaker to
the JIG cable.
VALUE
Minimum distortion
level
Set the [SQL] to the
value that the audio
signals just appears.