Standard Horizon HX851 Owner's Manual page 29

Preset scan starts from the first to the last channel programmed into
memory.
When an incoming signal is detected on one of the channels during
scan, the radio will pause on that channel, allowing you to listen to the
incoming transmission.
When the transmission stops the radio will automatically start Preset
scan again.
During Priority Preset scan the channels will rapidly change.
6.9.4 PRIORITY PRESET SCAN
This feature enables the radio to scan preset channels while also keeping
watch on a particularly important "Priority Channel". Any channel may be pro-
grammed as a priority channel.
To set the priority channel and enable Priority Scan
1. Press and hold the
appears.
2. Press the
3. Select "Priority CH Priority CH" in the "Radio Setup
Priority CH Priority CH
Priority CH
the /
4. Press the
nel, then press the
5. Press the
press the
6. Press the
then press the
7. Press the
is not shown.
To start Preset Priority Channel scan:
1. Press the
2. The Priority Channel will be scanned in between each Preset channel.
Example: Let us say marine channels "22A", "68", and "88A" are saved as
preset channels. Priority scanning will proceed in the following sequence:
[ CH22A ]  [ Priority Channel ]  [ CH68 ]  [ Priority Channel ] 
[ CH88A ]  [ Priority Channel ]  [ CH22A ]  [ Priority Channel ] .....
3. To stop the Preset Priority Scanning, press the
HX851
key until "Setup Menu
key with "Radio Setup Radio Setup" selected.
Radio Setup Radio Setup
Radio Setup
Radio Setup" menu with
Radio Setup Radio Setup
Radio Setup
key, then press the
/ key to select a desired chan-
key.
key to select "SCAN Type
key.
/ key to select "Priority Scan
key.
key numerous times until the setup mode
key to start, press again to stop.
NOTE
Setup Menu" Setup Menu Setup Menu
Setup Menu
key.
SCAN Type" and
SCAN Type SCAN Type
SCAN Type
Priority Scan Priority Scan
Priority Scan Priority Scan",
or key.
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