User's Manual

B. DIRECT KEY OPERATION

B.1 Power ON/OFF

Press and hold the Power key for over 3 sec, the unit will power on.

The unit will start with Normal mode. .

- display the splash screen info stored at EEPROM for 2sec

- recall the last channel # , TX power settings and operational mode

- Go to Channel 16, Tx Power be Hi

- Display the position and time if GPS data available

B.2 Volume Control

Press volume up/ down to adjust the volume level. A volume sub-menu will appear

when press. And timeout after 5 sec.

B.3 Squelch

Press Sql up/ down to adjust the squelch level. A sql sub-menu will appear when

press. And timeout after 5 sec.

B.4 Hi/Lo Tx Power

Press the Hi/Lo key will toggle the Tx power from Hi to Lo or vice versa. The

corresponding Hi/Lo icon will turn ON on the LCD.

Some of the channel has been limited to be low power only or high power only.

Thus, the software need to check against the channel setting stored in the

EEPROM

If the operation request is denied, warning beep tone ON for 2 sec.