Description Of Tuning; To Enter Manual Tune Mode; To Switch Between Tx Tuning Items And Rx Tuning Items; To Switch Between Tuning Items Within Tx Group/Rx Group - HYT TC-508 Service Manual

2) During cloning, the LED of the source radio glows red, and the LED of the target radio glows green.
When cloning finishes, both LEDs go out, indicating that both radios are ready for another cloning.
3) If any abnormal situation occurs during cloning, the source radio will stop cloning and its LED will
flash orange, indicating that it is ready for another cloning.
4) When cloning ends, the source radio goes back to standby status. Press the PTT key again to
begin another cloning operation.
Manual Tune Mode
In this mode, you can manually tune the frequency deviation, power level and squelch level and etc.

Description of Tuning:

1. To enter Manual Tune Mode

Hold down the PTT and SK1 key for 2 seconds while powering on the radio. The LED glows orange to
indicate that the radio has entered the Manual Tune Mode. After the keys are released, the radio directly
enters the TX group by default (the tuning item depends on the position where the Channel Selector
knob locates).
(Note: To enter the Manual Tune Mode, make sure its switch is set to Open via the programming
software. If this switch is set to Close, the radio cannot enter this mode, which helps avoid change of
parameters and degradation of radio performance caused by user' s misoperations.. Keep this option
unchecked after values are well adjusted from factory, to avoid any unexpected change of values. Such
values can only be reset and changed in Manual Tune Mode only. ）

2. To switch between TX tuning items and RX tuning items

Rotate the Channel Selector knob to switch between TX tuning items and RX tuning items.
The LED glows red for TX tuning items and green for RX tuning items.

3. To switch between tuning items within TX group/RX group

TX group: CH1 to CH9 respectively represent TX Low Power, TX High Power, CDCSS Balance, CDCSS
Deviation, CTCSS Deviation (low), CTCSS Deviation (medium), CTCSS Deviation (high), TX
Low Voltage Threshold and Max. TX Audio Deviation.
The LED solidly glows red during TX group tuning (CH1 to CH9).
RX group:CH10 to CH13 respectively represent SQL Normal Open, SQL Normal Close, RX Low Voltage
Threshold and Bandpass Filter.
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TC-508 Service Manual