Humminbird VHF255SW - Manual (Page 37)

36
on the receiving channel as long as it is present. If the signal ceases or is lost
for five seconds or more, the radio resumes the scanning sequence. You can
only enter Normal Scan mode when there are no channels stored in memory.
• Memory Scan: In Memory Scan mode, which is the default mode if any
channels are stored in memory, only the channels that have been saved in
memory are scanned in sequence. After the last saved channel number has
been scanned, the cycle repeats.
• Priority Scan: In Priority Scan mode, which can be activated from either
Normal or Memory Scan modes, you can scan all channels while alternately
scanning Channel 16 to make sure that you don’t miss distress or emergency
calls (for instance, 1,16, 2, 16, 3, 16, 4...).
Pressing the CANCEL/WX key will terminate the scan function and stop at the last
scanned channel. You can also cancel the scan by pressing the 16/9 or the PTT keys.
To activate scan modes:
1a. Press and release the SCAN key when no channels are stored in memory to
activate the Normal Scan function. The SCAN icon will appear on the LCD.
or...
1b. Press and release the SCAN key when there is at least one channel in
memory to activate the Memory Scan function. The and SCAN
icons will appear on the LCD.
or...
1c. Press and release the SCAN key for 3 seconds to enter Priority Scan mode. The
Priority Scan (P) icon will appear on the LCD just before the SCAN icon.
2. During any scan, pressing the Up or Down Channel keys on the microphone
handset changes the scan direction, where pressing Up increases the channel
number while pressing Down decreases it. You can also turn the CH/ENTER
knob on the radio base station either clockwise or counterclockwise, where
clockwise will increase the channel number, while counterclockwise will
decrease the channel number.
3. Press and release the SCAN key to terminate the Scan mode. If you are in
Priority Scan mode, you must press the SCAN key twice to exit scan mode, once
to exit Priority Scan mode, and again to exit Normal Scan mode. You can also
press the CANCEL/WX key to terminate Scan mode. Scan mode can also be
terminated by pressing the 16/9 or the PTT keys.
NOTE: During Scan mode, the BAND/SAVE, HI/LO/MEM, and Watch keys will not function
and will sound an error beep if pressed.