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5 - 3
5-2 RECEIVER ADJUSTMENT
VHF
SENSITIVITY
UHF
SENSITIVITY
SQUELCH
LEVEL
S-METER
ADJUSTMENT
ADJUSTMENT
ADJUSTMENT CONDITION
MEASUREMENT
VALUE
POINT
UNIT
LOCATION
UNIT
ADJUST
1
1
1
1
2
• Displayed frequency :
145.000 MHz
[EUR]
146.000 MHz
[Other]
• Connect an SSG to the antenna
connector and set as :
Level
: 1.0 mV
*
(–47 dBm)
Modulation
: 1 kHz
Deviation
: ±3.5 kHz
• Receiving
• Displayed frequency :
445.000 MHz
[USA-3]
435.000 MHz
[Other]
• Connect an SSG to the antenna
connector and set as :
Level
: 1.0 mV
*
(–47 dBm)
Modulation
: OFF
• Receiving
• Displayed frequency : any
• Connect an SSG to the antenna
connector and set as :
Level
: 0.089 µV
*
(– 128 dBm)
Modulation
: 1 kHz
Deviation
: ± 3.5 kHz
• Pre-set the R504 to maxmum
CW.
• Receiving
• Displayed frequency :
443.000 MHz
[USA-3]
433.000 MHz
[Other]
• Connect an SSG to the antenna
connector and set as :
Level
: 0.5 µV
*
(– 113 dBm)
Modulation
: 1 kHz
Deviation
: ± 3.5 kHz
• Connect a terminator to the [EXT
SP] jack.
• Receiving
• Set an SSG output level for the S-
meter to S3 (4 dots).
2F
2F
Seaker
Front
panel
SSG
Connect a digital
multimeter or oscil-
loscope to the
check point “S”.
Connect a digital
multimeter or oscil-
loscope to the
check point “CP1”.
Output level
Maximum DC voltage
1.0 V
At the point where the
AF signal just disap-
pears.
0.28 to 0.89 µV
(– 118 to – 108 dBm)
2F
2F
Adjust in
sequence
L53,
L54,
L55
L102
R504
Verify
*This output level of the standard signal generator (SSG) is indicated as SSG’s open circuit.
Push and hold
the [CALL] key.