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TK-868HG
Common Section
Item
Condition
1. PLL lock
1) Set test mode
voltage
CH : CH3 - Sig1
RX
AUX : ON
TX
2) PTT : ON (Transmit)
RX
3) CH : CH2 - Sig1
AUX : ON
TX
4) PTT : ON (Transmit)
Receiver Section
Item
Condition
1. Discriminator
1) Set test mode
• Wide
CH : CH1 - Sig1
SSG freq'
: 470.050MHz C
: 415.050MHz C3
SSG output : –53dBm/501µV
SSG MOD : 3kHz
AF : 1.4V/4Ω
2. Sensitivity
1) Set test mode
• Wide
Select "SENS" in tuning mode.
"S.E.N.S._."
Adjust [250]
SSG freq'
: 489.950MHz C
: 429.950MHz C3
SSG output : –116dBm/0.35µV
SSG MOD : 3kHz
AF output : 1V/4Ω
2) "S.ENS"
Adjust [ *** ]
SSG freq'
: 450.050MHz C
: 400.050MHz C3
3) "S.E.N.S"
Adjust [ *** ]
SSG freq'
: 470.050MHz C
: 415.050MHz C3
3. Squelch 3
1) Set test mode
• Wide
Select "SQL3" in tuning mode.
"S.QL3"
Adjust [ *** ]
SSG freq'
: 450.050MHz C
: 400.050MHz C3
SSG output : –125dBm/0.12µV
SSG MOD : 3kHz (Wide)
22
ADJUSTMENT
Measurement
Test-
Unit
equipment
DVM
TX-RX CV
Power meter (A/2)
F. conter
Measurement
Test-
Unit
equipment
SSG
Rear
panel
AF VTVM
Oscilloscope
SSG
Rear
panel
AF VTVM
Distortion
meter
Oscilloscope
AG
DVM
TX-RX RSSI
(A/2)
1.5kHz (Narrow)
Adjustment
Terminal
Unit
Parts
PLL
TC106 7.5V
TC109 7.5V
Check
Adjustment
Terminal
Unit
Parts
ANT
TX-RX L5
AF output maximum.
(A/2)
ACC
(EXT.SP)
ANT
TX-RX L13
RSSI voltage
(A/2)
L22
maximum.
ACC
(EXT.SP)
Front
CH /
panel
Front
CH /
Adjust to the
panel
squelch threshold
point.
Specifications/Remarks
Method
± 0.1V
0.9V or more
0.9V or more
Specifications/Remarks
Method
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