Software Adjustment - Icom IC-M87 Service Manual

SOFTWARE ADJUSTMENTS (Continue)
• Select the adjustment item with [↑] / [↓] keys, then set specifi ed value or condition with [←] / [→] keys on the connected com-
puter keyboard.
ADJUSTMENT
NOTE: Adjust all the adjustment items as follows throughly in sequence.
1
RX • Operating CH
SENSITIVITY • Connect an SSG to the antenna connector
[BPF T1]– and set as;
[BPF T4] Frequency
Level
Modulation
Deviation
• Receiving
CONVENIENT:
The BPF T1– BPF T4 can be adjusted automatically.
q-1: Set the cursor to "BPF ALL" and then push [ENTER] key.
q-2: The BPF T1–BPF T4 are tuned automatically.
w-1: Set the cursor 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 tune additional BPF.
SQUELCH 1 • Operating CH
LEVEL • Connect an SSG to the antenna connector
[SQL] 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.
ADJUSTMENT CONDITION
: A5
: 160.000 MHz
: 10 µV* (–87 dBm)
: 1 kHz
: ±3.0 kHz
or
: A5
: 160.000 MHz
: 0.5 µV* (–113 dBm)
: 1 kHz
: ±3.0 kHz
MEASUREMENT
UNIT LOCATION
Side
Connect a SINAD meter
with an 8 Ω load to the multi
panel
connector through the JIG
cable.
Side Connect a speaker to the
panel multi connector through the
JIG cable.
5 - 6
VALUE
Minimum distortion
level
Close the squelch.
Then set SQL level
at the point where
the audio signals
just appears.