interference. With low power, the CLK446 radio
coverage is 80,000 square feet, 6 floors and
with high power, the coverage is 100,000
square feet, 10 floors.
Talk range depends on the terrain. It will be
affected by concrete structures, heavy foliage
and by operating radios indoors or in vehicles.
Optimal range occurs in flat, open areas with
up to 9 kilometers of coverage. Medium range
occurs when buildings and trees are in the way.
To establish a proper two-way communication,
the Channel, Frequency and Interference
Eliminator Codes must be the same on both
radios. This depends on the stored profile that
has been pre-programmed on the radio:
1. Channel: Current channel that the radio
is using, depending upon radio model.
2. Frequency: The frequency the radio
uses to transmit/receive.
3. Interference Eliminator Code: These
codes help minimize interference by
providing a choice of code combinations.
4. Scramble Code: Codes that make the
transmissions sound garbled to anyone
listening who is not set to that specific
To access the radio menu, short press the
MENU button. If the voice announcement is
enabled, you will hear the “Main Menu”
Use the Volume Control Button (+/–) to scroll
through the menu items.
The LED display shows the current
configurable feature icon and setting. The
features which are configurable on the radio
are as follow:
• Squelch Level
• Repeater Access
• Voice Announcement
Selecting a Channel
This feature is the first feature on the radio
Menu. The channel numbers that can be
supported by the display are Channel 1 to 20.
To change channels, press the Volume
Control Button (+/–).