Icom IC-F70DT Service Manual page 19

SOFTWARE ADJUSTMENT (continued)
• Select an operation using [↑] / [↓]keys, then set specifi ed value using [←] / [→] keys on the connected computer keyboard
ADJUSTMENT ADJUSTMENT CONDITION
RX NOTE:
SENSITIVITY
Need to adjust "S-METER ADJUSTMENT" after "RX SENSITIVITY ADJUSTMENT" is adjusted.
[BPF C]
Otherwise, "S-METER ADJUSTMENT" will not be adjusted properly.
1
• Operating CH
• Connect the SSG to the antenna connec-
tor and set as;
Frequency
Level
Modulation
Deviation
• Receiving
2
[BPF L] • Operating CH
Frequency
• Receiving
[BPF H] 3 • Operating CH
Frequency
• Receiving
CONVENIENT:
The BPF C/L/H can be adjustment automatically.
q-1: Put the cursor on "BPF C/L/H ALL" and then push [ENTER] key.
q-2: The connected PC tunes BPF C/L/H to peak levels.
w-1: Put the cursor on the one of "BPF C/L/H" as desired.
w-2: Push [ENTER] key to start tuning.
w-3: Repeat w-1 and w-2 to perform additional BPF tuning.
Digital RSSI* 1 • Operating CH.
[Dig RSSI]
• Connect the SSG to the antenna connec-
tor and set as;
Frequency
Level
Modulation
• Receiving
1
S-METER • Operating CH.
[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 • Operating CH.
LEVEL
• Connect the SSG to the antenna connec-
[SQL]
tor and set as;
Frequency
Level
Modulation
Deviation
• Receiving
*; [IC-F70DT/DS] only
†;
The output level of the standard signal generator (SSG) is indicated as the SSG's open circuit.
UNIT
: CH 5
screen
: 155.000 MHz
†
: +20 dBµ (–87 dBm)
: 1 kHz
: ±3.5 kHz
: CH 6
: 136.000 MHz
: CH 7
: 174.000 MHz
or
: CH 9 Put the cursor on "Dig RSSI" and push the [ENTER] key to
set the Digial RSSI level.
: 155.000 MHz
†
: –20 dBµ (–127 dBm)
: No modulation
: CH 5 Push the [ENTER] key on the connected computer's keyboard
to set "S3" level.
: 155.000 MHz
†
: +23 dBµ (–84 dBm)
: 1 kHz
: ±3.5 kHz
Push the [ENTER] key on the connected computer's keyboard
†
: –7dBµ (–114 dBm) to set "S1" level.
: CH 5
panel
: 155.000 MHz
†
: –14dBµ (–121 dBm)
: 1 kHz
: ±3.5 kHz
5 - 7
MEASUREMENT
LOCATION
PC Connect the SINAD meter with
an 8 Ω load to the JIG cable.
Top Connect speaker to the JIG
cable.
VALUE
Minimum distortion
level
Set the SQL level to
close squelch.
Then set SQL level
at the point where
the audio signals
just appears.