Abell A-80 - Page 41

A-80 UHF SERVICE MANUAL
- 41 -
4.
Maximum
DEV
1)CH: TX center
AG:
1KHz/120mV
PTT: ON
Adjust to
±4.2KHz(wide)
Wide check
(+、- peak whichever
is maximum)
±100Hz
±1.8KHz～
2.2KHz
5.MIC
SENS
1)CH: TX center
AG:
1KHz/12mV
Modulation
Analyzer or linear
detector
(LPF:15KHz)
Oscilloscope
Audio generator
Audio voltmeter
Antenna
Speaker
VR400
Check
(+、- peak whichever
is maximum)
±2.2KHz～
3.6KHz(wide)
±1.1KHz～
1.8KHz(narrow)
6.QT DEV
(PC
MODE)
1)CH: TX high
QT:67.0Hz
Modulation
Analyzer or linear
detector
(LPF:3kHz)
Oscilloscope
Audio generator
Audio voltmeter
PC key
Adjust to ±0.75
KHz(wide)
Adjust to ±0.35
KHz(narrow)
±50Hz
±50Hz
7.DQT
DEV( PC
MODE)
1)DQT:023N TX center Modulation
Analyzer or linear
detector
(LPF:3kHz)
Oscilloscope
Antenna
PC key
Adjust to ±0.75
KHz(wide)
Adjust to ±0.35
KHz(narrow)
±50Hz
±50Hz
8. Battery
level
(PC
MODE)
1) Battery terminal
：5.8V
Digital voltmeter Battery PC key Adjust so that the LED
flashed
The LED must
flash