Page 11
HX280E
PTT
(PUSH-TO-TALK) Switch
When pushed activates the transmitter.
LCD Display
This display shows current operating conditions, as indicated on the page
13.
Keypad
[
SQL
] Key
Press this key to activate the squelch adjusting mode. Press the [
] or [
]
key to adjust the squelch threshold level.
Press and hold this key for 3 seconds to open the squelch, allowing you to
monitor the operating channel. Release the key to resume normal (quiet)
monitoring.
[
SCAN
] Key
Starts scanning and priority scanning of programmed channels.
[
(UP)] Key
Press the key momentarily to increase the channel one step. Hold the key
down to increase the channel continuously.
Secondary use:
Used to adjust the squelch threshold level up after the [
SQL
] key is pressed.
[
(DOWN)] Key
Press the key momentarily to decrease the channel one step. Hold the key
down to decrease the channel continuously.
Secondary use:
Used to adjust the squelch threshold level down after the [
SQL
] key is
pressed.
[
DW
] Key
Press this key to activate the Dual Watch feature. A “
” icon will appear
on the upper left of the display when the Dual Watch feature is activated.
Secondary use:
When the [
16/9
] key is held and the [
DW
] key is pressed, the radio will
change the marine band between the International, Canadian, and USA
channels.
