HYT POWER446, Service Manual, Page: 37 / 61

POWER446 Service Manual
35
5
CDCSS
Deviation
Y Y Y Y Y
6
CTCSS
Deviation(67Hz)
Y Y Y Y Y
7
CTCSS
Deviation(151.8H
z)
Y Y Y Y Y
8
CTCSS
Deviation(254.1H
z)
Y Y Y Y Y
9
MSK Deviation
(reserved)
10
VOX Level 1 Y
11
VOX Level 2 Y
12
VOX Level 3 Y
13
VOX Level 4 Y
14
VOX Level 5 Y
15
TX Low Voltage
Threshold
Y
RX Item
1
SQL On 1 Y Y Y Y Y
2
SQL On 5 Y Y Y Y Y
3
SQL On 9 Y Y Y Y Y
4
SQL Off 1 Y Y Y Y Y
5
SQL Off 5 Y Y Y Y Y
6
SQL Off 9 Y Y Y Y Y
7
RX Low Voltage
Threshold
Y
8
Bandpass Filter Y Y Y Y Y
Note:
Y indicates frequencies available for tuning, and the rest are blank channels without tuning items.
3. Specific Operations and Requirements:
(1) Tuning outside the mode (conventional tuning items): TX Frequency Tolerance, VCO Lock Voltage,
Maximum Deviation and Modulation Sensitivity.
Note: CH1, CH2 and CH3 have been preset as narrow bands with low, medium and high frequencies
respectively. Make sure the antenna or load is connected before tuning.
Measurement Tuning
Item Condition
Test
Instrument
Test
Point
Part Method
Specification
s / Remarks