4 - 1
4-1 PREPARATION
When adjusting the contents on page 4-7, a JIG CABLE is required.
Some adjustments must be performed on the “ADJUSTMENT MODE”. Refer to the next page in detail.
■ REQUIRED TEST EQUIPMENT
SECTION 4 ADJUSTMENT PROCEDURES
EQUIPMENT
DC power supply
RF power meter
(terminated type)
Frequency counter
FM deviation meter
Digital multimeter
GRADE AND RANGE
Output voltage : 13.6 V DC
Current capacity : 25 A or more
Measuring range : 1–100 W
Frequency range : 300–600 MHz
Impedance : 50 Ω
SWR : Less than 1.2 : 1
Frequency range : 0.1–600 MHz
Frequency accuracy : ±1 ppm or better
Sensitivity : 100 mV or better
Frequency range : DC–600 MHz
Measuring range : 0 to ±5 kHz
Input impedance : 10 MΩ/V DC or better
EQUIPMENT
Audio generator
Attenuator
Standard signal
generator (SSG)
AC millivoltmeter
Oscilloscope
FM deviation meter
GRADE AND RANGE
Frequency range : 300–3000 Hz
Output level : 1–500 mV
Power attenuation : 40 or 50 dB
Capacity : 100 W or more
Frequency range : 120–600 MHz
Output level : 0.1 µV–32 mV
(–127 to –17 dBm)
Measuring range : 10 mV–10 V
Frequency range : DC–20 MHz
Measuring range : 0.01–20 V
Frequency range : 30–600 MHz
Measuring range : 10 mV–10 V
RF power mater
100 W / 50 Ω
Attenuator
FM deviation
meter
Oscilloscorp
DC power supply
13.6V / 25A
Standard signal
generator
Frequency
counter
+
.
pin 6 (MIC)
pin 4 (PTT)
pin 7 (GND)
pin 5 (MICE)
Audio generator
300 Hz to 3 kHz
[TX]
[RX]
[BATTERY]
[MIC]
[SP]
• CONNECTION
Distortion meter
AC millivoltmeter
■ ENTERING THE ADJUSTMENT MODE
1 Turn the power OFF.
2 Push and hold [CH-DN] and [CH-UP] buttons, then turn the power ON, keep on pushing [CH-DN] and [CH-UP] buttons until
sounds 1 beep audio.
3 Push [CH-DN] button, then sounds 2 beep audio.
■ EXITING THE ADJUSTMENT MODE
1 Turn the power OFF.
2 Push and hold [CH-UP] button, then turn the power ON, keep pushing [CH-UP] button until sounds 2 beep audio.
3 Push the [CH-UP] button, then sounds 1 beep audio.
■ OPERATING IN THE ADJUSTMENT MODE
• Change the adjustment frequency channel (+1). : Push the [CH-UP] button.
• Change the adjustment frequency channel (–1). : Push the [CH-DN] button.
• Change the next adjustment item. : Push the [PROG] button.
• Adjust the specified value (+1). : Push the [PRT/BASE] button.
• Adjust the specified value (–1). : Push the [MONI] button.
4 - 2
[CH-UP]
[CH-DN]
[RPT/BASE]
[MONI]
[PROG]
[POWER]
[CH-UP]
[CH-DN]
450.275
465.275
450.275
450.275
465.275
450.275
479.725
465.275
465.275
465.275
465.275
465.275
4 - 3
■ ADJUSTMENT MODE CH LIST
A01
A03
A05
A06
A07
A08
A09
A10
A11
A12
A13
A14
A01 LW TXREF ***
A03 LW MRTUN ***
A05 LW RPTSQL***
A06 HW POWER ***
A07 LW M DEV ***
A08 LW LMODC ***
A09 LW HMODC ***
A10 LW CTCDEV***
A11 LW DTCADJ***
A12 LN CTCDEV***
A13 LW RPTAF ***
A14 LN RPTAF ***.
H
M
L
M
M
L
H
M
M
M
M
M
W
W
W
W
W
W
W
W
W
N
W
N
TVCO/RVCO adjustment.
Reference freqency adjustment.
RX sensitivity adjustment.
RPT SQL adjustment.
TX power adjustment.
TX modulation adjustment.
TX modulation adjustment.
TX modulation adjustment.
CTCSS modulation adjustment
DTCS modulation adjustment.
CTCSS modulation adjustment. (NARROW)
RPT modulation adjustment. (WIDE)
RPT modulation adjustment. (NARROW)
CH LCD DISPLAY ADJUSTMENTBAND
RX TX
W/N
479.275
465.075
450.075
450.075
465.075
450.075
479.925
465.075
450.075
465.075
460.275
465.075
A01 LW TXREF 127
Adjustment frequency channel
TX power (LOW)
Band width (WIDE)
Adjustment item
Adjustment value
■ LCD DISPLAY IN THE ADJUSTMENT MODE
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