21
TK-2107
TK-260
:K, K2
Method
Adjust to center frequency
Rectify the waveform to square
wave
Adjust it to 4.8W
Adjust it to
±
4.2kHz
Check
(+, - Peak whichever is Maximum)
Adjust it to
±
0.75kHz
Adjust it to
±
0.75kHz
A d j u s t s o t h a t t h e L E D
flashes.
Parts
PC key
VR500
VR501
PC key
PC key
PC key
Specifications/
Remarks
within
±
100Hz
±
0.1W
±
100Hz
±
2.2kHz~3.6kHz:
(Wide)
±
50Hz
±
50Hz
The LED must
flash.
Terminal
ANT
ANT
MIC
ANT
BATT
Test equipment
Frequency
counter
Modulation
analyzer or linear
detector (LPF: 3kHz)
Oscilloscope
Power meter
Ammeter
Modulation
analyzer or linear
detector (LPF:15kHz)
Oscilloscope
AG
AF. V. M
Modulation
analyzer or linear
detector (LPF:3kHz)
Oscilloscope
AG
AF. V. M
Modulation
analyzer or linear
detector (LPF:3kHz)
Oscilloscope
Digital voltmeter
Condition
1) CH: TX center
PTT: ON
1) CH: TX center
1) CH:TX center
Battery terminal: 7.5V
PTT: ON
1) CH: TX center
AG: 1kHz/120mV
PTT: ON
1) CH: TX center
AG: 1kHz/12mV
1) CH: TX center
QT: 67.0Hz
1) CH: TX center
1) Battery terminal: 5.8V
Transmitter section
Item
1. Transmit
frequency
(PC MODE)
2. DQT/QT
Balance
(PC MODE)
3. Power
(PC MODE)
4. MAX DEV
5. MIC SENS
6. QT DEV
(PC MODE)
7. DQT DEV
(PC MODE)
8. Battery
Level
(PC MODE)
Measurement
Adjustment
Use the KPG-55D programming software for adjustment of the next item in PC MODE (see page 3).
Squelch Level, Transmit frequency, DQT Balance, RF Power, QT Deviation, DQT Deviation, Battery Level
ADJUSTMENT
Parts
TC1
TC2
Method
3.8V
3.8V
Check
Specifications/
Remarks
±
0.1V
±
0.1V
more than 0.7V
Terminal
CV
Test equipment
Digital voltmeter
Condition
1) Power supply voltage
Battery teriminal:7.5V
1) CH: TX high
2) CH: RX high
3) CH: TX low
4) CH: RX low
Section common to the transmitter and receiver (VCO)
Item
1. Setting
2. VCO lock
voltage
Measurement
Adjustment
Parts
TC201
L212
PC key
Method
Adjust the frequency so that
it becomes the spectrum
waveform shown in Fig.1.
Adjust to the MAX AF level
Check
Level 9
Adjust to close the squelch.
Level 3
Adjust to close the squelch.
Specifications/
Remarks
SINAD: 12dB or
higher
The squelch must
be closed.
The squelch must
be closed.
Terminal
ANT
TP2
ANT
SP
Test equipment
Tra generator
Spectrum analyzer
SSG
Oscilloscope
AF. V. M
Distortion meter
Condition
1) CH: RX center
2) Tra generator output -40dBm
Connect the spectrum analyzer
to TP2 terminal.
1) CH: RX center
SSG output: -53dBm (501
µ
V)
MOD: 1kHz
DEV:
±
3.0kHz (Wide)
1) CH: RX center
CH: RX LO
CH: RX Hi
SSG ouput: -116dBm (0.35
µ
V)
MOD: 1kHz
DEV:
±
3.0kHz (Wide)
1) CH: RX center
MONI: ON
2) Level 9
SSG output: -117dBm (0.32
µ
V)
3) Level 3
SSG output: -125dBm(0.126
µ
V)
Receiver Section
Item
1. Band-
pass filter
2. AF level
3. Sensitivity
4. Squelch
Level
(PC MODE)
Measurement
Adjustment
