Lowrance
LHR-20/22
Operation Instructions
11
To select a channel:
Use or
(UP/DOWN)
key to find a channel. Stop when you find the desired channel.
NOTE:
Not all channel numbers are available in INT bands, see marine Channel charts at the back
of this manual.
6. Selecting High/Low Power
You must press and release
H/L/LOCK
key to toggle the transmit power between high and low.
Select high (High power transmit) for long-range communications, and select low (Low power
transmit) for short-range communications to save battery power.
To change the transmit power:
Press
H/L/LOCK
key to toggle between High and Low transmit power. When the radio is
operating at high power, the “
HI
” icon appears on the LCD display, and when operating at low
power, the
“LO”
icon appears on the LCD display. The H/L setting is applied to all the channels
in the channel bank. Anytime the priority CH 16 is selected, it will always be at HI power. For USA
operation, CH 13 and 67 are always low power initially and will go to high if the H/L key is held
down while transmitting.
7. Locking the Keypad
Use
H/L/LOCK
key to activate the Key Lock function in order to avoid accidental key press of the
radio keypad.
To lock and unlock the keypad:
1. To lock the keypad, press and hold the
H/L/LOCK
key until the “
Key Lock”
icon appears on
the LCD display.
2. To unlock the keypad, press and hold the
H/L/LOCK
key again until the
“Key Lock”
icon
disappears from the LCD display.
NOTE:
Once Key Lock is turned on, pressing the keys will have no effect except for the
PTT
key,
which is not affected by Key Lock.
8. Adding/Deleting Channels to/from Memory
Your radio can store any channel (except WX channels). The stored channels are also the channels
scanned in the Memory Scan mode.
To add channels to memory:
1. During normal operating mode, use or
(UP/DOWN
keys to select the desired channel
for saving.
2. Press and hold
MEM
key for 3 seconds. The
“M”
(Memory Channel) icon will appear, indicating
that the current channel has been saved into memory. Any number of channels can be saved.
To delete channels from memory:
1. During normal operating mode, use or
(UP/DOWN)
keys to select the saved channel
you wish to delete. The
“M”
(Memory Channel) icon appears.
2. Press and hold
MEM
key for 3 seconds. The
“M”
(Memory Channel) icon disappears, and the
selected. The selected channel will be removed from the scan memory.
