Standard Horizon HX400 Owner's Manual page 17

Keypad
Key
Pressing this key immediately recalls channel 16 from any channel loca-
tion. Holding down this key recalls channel 9. Pressing this key again re-
verts to the previous selected working channel.
Secondary use:
When the
the marine band between the International, Canadian, and USA channels.
Advanced use:
When the
the priority channel between the Channel 16, Channel 9, and the Preset
Channel.
Key
Press this key to toggle the transmitter output power between "High" (5
Watts) and "Low" (1 Watt) power. When the "Low" power is selected, the
" " icon will appear to the right of the channel indication on the display.
This key does not function on the "Transmission Inhibited" and "Low power
only" channels.
Secondary use:
Hold down this key to lock the keypad (except the
keys) so that they are not accidentally changed. The "
at the right of the channel indication on the display, to indicate that the
functions are locked. Hold down this key until the "
unlock the radio.
Advanced use:
When the
the priority channel between the Channel 16, Channel 9, and the Preset
Channel.
Key
Press this key to recall the user preset memory channels (shown as memory
channel number "0" - "9" on the display). Press the
the desired preset channel.
Press and hold this key for two seconds to memorize the selected channel
into the preset memory.
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
HX400
key is held and the
key is held and the
key is held and the
key is pressed, the radio will change
key is pressed, the radio will change
" icon disappears to
key is pressed, the radio will change
and PTT (
,
" icon will appear
or key to select
key is pressed.
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