Standard Horizon HX851 Owner's Manual page 21

Key
Press this key to start scanning programmed memory channels.
Secondary use:
Press and hold this key to watch for a transmission on CH16, another
selected channel, and CH70 until either signal is received (Triple Watch).
KEY
Press this key to access the DSC Call Menu. The "Individual Call",
"Group Call", "All Ships Call", "Position Request", "Position Report",
"DSC Log", and "DSC Test" functions can be accessed from the DSC
Call Menu.
Secondary use:
Press and hold this key to access the "Radio Setup", "DSC Setup" or
"GPS Setup" menu.
Key
16/9
Pressing this key immediately recalls channel 16 from any channel
location. Holding down this key recalls channel 9. Pressing this key
again reverts to the previous selected working channel.
Key
Press this key to cancel a menu selection and/or keypad entry.
Secondary use:
Press and hold this key to immediately recall the last-used NOAA
Weather Channel from any channel location. Recalls the previously-
selected working channel when the
Advanced use:
When the
change the marine band between the USA, International, and Cana-
dian channels.
Key
Press this key to recall the "Preset" channel.
Secondary use:
Press and hold this key to memorize the current channel as a "Preset"
memory channel. When pressed a "
LCD display indicating the channel has been saved to preset memory.
To delete the channel from preset memory, select the channel and press
and hold this key until "
( POWER ) KEY
Press and hold this key for two seconds to turn the radio on or off.
HX851
key is held and the
16/9
key is pressed again.
key is pressed, the radio will
" icon will be shown on the
" is removed from the display.
Page 21