HYT POWER446, Service Manual, Page: 8 / 61

POWER446 Service Manual
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4. To switch within narrow bands
Under a certain tuning item, long press
PTT
(the LED flashes orange to indicate valid press) to enter
narrow bands; short press
PTT
to switch the frequency orderly.
5. To tune the value
Short press
SK1
to increase the value in step of 1, or hold down this key to successively increase the
value in steps of 1. The value will remain unchanged once it reaches the allowed maximum value.
Short press
SK2
to decrease the value in step of 1, or hold down this key to successively decrease
the value in steps of 1. The value will remain unchanged once it reaches the allowed minimum value.
6. About several special items
TX group: CH9 to CH14 stand for VOX Level 1, VOX Level 2, VOX Level 3, VOX Level 4, VOX Level
5 and TX Low Voltage Threshold respectively. These tuning items are related to AD sampling. Press
SK1
or
SK2
after entering the above items, to activate AD sampling (including calculation) once.
Rotate the
Channel Selector
knob to save the current AD sampling value.
RX group: CH1 to CH7 stand for SQL On 1, SQL On 5, SQL On 9, SQL Off 1, SQL Off 5, SQL Off 9,
RX Low Voltage Threshold respectively. . These tuning items are related to AD sampling. Press
SK1
or
SK2
after entering the above items, to activate AD sampling (including calculation) once. Rotate
the
Channel Selector
knob to save the current AD sampling value.
7. About the key-press
Short press: key-press time shorter than 1.5 seconds;
Long press: key-press time not shorter than 1.5 seconds.