5 - 5
SOFTWARE ADJUSTMENTS (RECEIVING)
• Select an operation using [↑] / [↓] keys, then set specified 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.
*The output level of the standard signal generator (SSG) is indicated as the SSG’s open circuit.
ADJUSTMENT ADJUSTMENT CONDITION
MEASUREMENT
VALUE
UNIT LOCATION
RX
SENSITIVITY
[BPF T1],
[BPF T2]
1 • Operating CH : CH10
• Connect a standard signal generator to
the antenna connector and set as:
Frequency : 136.000 MHz
Level : 10 µV* (–87 dBm)
Modulation : 1 kHz
Deviation : ±3.5 kHz
• Receiving
MAIN Connect a SINAD meter with an
8 Ω load to the multi connector
through the JIG cable (see page
5-3).
Minimum
distortion level
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
[S-METER]
1 • Operating CH : CH10
• Connect an SSG to the antenna connector
and set as:
Frequency : 136.000 MHz
Level : 4.5 µV* (–94 dBm)
Modulation : 1 kHz
Deviation : ±3.5 kHz
• Receiving
Push [ENTER] key on the connected computer keyboard to
set “S6 level”.
2 • Set an SSG as:
Level :
0.25 µV* (–119 dBm)
Modulation : 1 kHz
Deviation : ±3.5 kHz
• Receiving
Push [ENTER] key on the connected computer keyboard to
set “S1 level”.
SQUELCH
LEVEL
[SQL]
1 • Operating CH : CH6
• Connect an SSG to the antenna connector
and set as:
Frequency : 155.000 MHz
Level : 0.18 µV* (–122 dBm)
Modulation : 1 kHz
Deviation : ±3.5 kHz
• Receiving
Front
panel
Internal speaker Set “SQL level” to
close squelch.
Then set “SQL level”
at the point where
the audio signals
just appears.
To Next Page
Loading...
Need help?
General
