Standard Horizon GX2400GPS Owner's Manual page 14

H/L key
Press this key to toggle between 25 W (High) and 1 W (Low) power. When
the TX output power is set to "Low" while the transceiver is on channel 13 or
67 (USA Channel group only), the output power will temporarily switch from
"Low" to "High" power until the PTT switch of the microphone is released.
This key is not available on transmit inhibited and low power only channels.
MENU/SET key
Press to access MENU.
Press and hold to access SETUP MENU. For details, refer to section
"9.4 BASIC OPERATION OF THE SETUP MENU".
CLEAR key
Press this key to cancel a menu selection.
GPS Antenna
Built in GPS antenna is located here.
BUSY Indicator LED
This indicator glows green when the squelch opens.
DATA jack
Use the USB micro type B jack to configure the transceiver settings and
download* the GPS logger data.
NOTE: When the DATA jack is securely covered with rubber cap, the GX2400 meets
the waterproofing performance.
DISTRESS key
Used to send a DSC Distress Call. To send the distress call, refer to section
"11.2.1 Transmitting a Distress Alert".
◄ & ► key
/
When the soft keys are displayed, press these keys to switch the function of soft keys.
Secondary use
While the MENU screen is displayed, press the key to slide the on-screen
menu to the right/left side.
Soft keys
Press these keys to display the soft keys.
The 3 programmable soft keys can be customized by the Setup Menu
described in section "16.8 SOFT KEYS".
16/S key
Pressing this key immediately recalls channel 16 from any channel location.
Holding down this key selects the SUB channel (The default SUB channel
setting is channel 9). Pressing this key again reverts to the previous selected
working channel.
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