5 - 7
S-METER
(440 MHz band)
(1200 MHz band)
SQUELCH
LEVEL
ADJUSTMENT
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT
LOCATION
UNIT
ADJUST
9
10
11
12
13
14
1
• Displayed frequency :
445.000 MHz [USA-1]
435.000 MHz [other]
• Connect the SSG to the antenna
connector and set as:
Level
: 0.63 µV
*
(– 111 dBm)
Modulation
: 1 kHz
Deviation
: ± 3.5 kHz
• Connect a terminator to the [SP]
jack.
• Receiving
• Set an SSG output level for the
S-meter to S3.
• Receiving
• Increase an SSG output level.
• Receiving
• Displayed frequency :
1270.000 MHz
• Connect the SSG to the antenna
connector and set as:
Level
: 1 µV
*
(– 107 dBm)
Modulation
: 1 kHz
Deviation
: ± 3.5 kHz
• Connect a terminator to the [SP]
jack.
• Receiving
• Set an SSG output level for the
S-meter to S3.
• Receiving
• Increase an SSG output level.
• Receiving
• Displayed frequency :
445.000 MHz [USA-1]
435.000 MHz [other]
• Connect the SSG to the antenna
connector and set as:
Level
: 0.1 µV
*
(– 127 dBm)
Modulation
: 1 kHz
Deviation
: ± 3.5 kHz
• Pre-set the R733 to maxmum
clock-wise.
• Receiving
Top
panel
SSG
Front
panel
Top
panel
SSG
Front
panel
Speaker
Output level
S-meter
Output level
S-meter
LOGIC
R733
0.35 µV – 1.1 µV
(-116dBm – -106 dBm)
Full scale
0.56 µV – 1.8 µV
(-102dBm – -112 dBm)
Full scale
At the point where
the AF signal just dis-
appears
*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit.
Push and hold
the [SQL] key
Verify
Verify
Push and hold
the [SQL] key
Verify
Verify
RECEIVER ADJUSTMENT (Continued)
The SQUELCH LEVEL adjustment must be performed on the normal mode after “S-METER ADJUSTMENT”.
• LOGIC UNIT TOP VIEW
Squelch level adjustment
R733