5 - 5
ADJUSTMENT ADJUSTMENT CONDITION
MEASUREMENT
VALUE
UNIT LOCATION
RX
SENSITIVITY
[BPF T1]
[BPF T2]
1
• Operating Channel : CH5
• Connect the SSG to the antenna connector
and set as:
Frequency : 136.000 MHz
Level : 10 µV* (–87 dBm)
Modulation : 1 kHz
Deviation :
±
3.5 kHz
• Receiving
PC
screen
Connect the SINAD meter
with an 8
Ω
load to the [SP]
jack through the JIG cable.
Minimum distortion
level
CONVENIENT:
The BPF T1, BPF T2 can be adjustment automatically.
q
-1: Set the cursor to "BPF ALL" and then push [ENTER] key.
q
-2: The connected PC tunes BPF T1, 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
[S-METER]
1
• Operating Channel : CH5
• Connect the SSG to the antenna connector
and set as:
Frequency : 136.000 MHz
Level : 14 µV* (–84 dBm)
Modulation : 1 kHz
Deviation :
±
3.5 kHz
• Receiving
Push the [ENTER] key on the connected computer's key-
board to set "L2" level.
2
• Set the SSG as:
Level : 0.45 µV* (–114 dBm)
• Receiving
Push the [ENTER] key on the connected computer's key-
board to set "L0" level.
SQUELCH
LEVEL
[SQL]
1 • Operating Channel : CH1
• Connect the SSG to the antenna connector
and set as:
Frequency : 155.000 MHz
Level : 0.2 µV* (–121 dBm)
Modulation : 1 kHz
Deviation :
±
3.5 kHz
• Receiving
Side
panel
Connect speaker to the [SP]
jack through the JIG cable.
Set SQL level to
close squelch.
Then set SQL level
at the point where
the audio signals
just appears.
*The output level of the standard signal generator (SSG) is indicated as the SSG's open circuit.
SOFTWARE ADJUSTMENT (RECEIVING)
• Select an operation using [
↑
] / [
↓
]keys, then set specifi ed value using [
←
] / [
→
] keys on the connected computer keyboard
• Need to adjust "S-METER ADJUSTMENT" after "RX SENSITIVITY ADJUSTMENT" is adjusted.
Otherwise , "S-METER ADJUSTMENT" will not be adjusted properly.
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