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18
8 CONTROLS
This section describes the buttons, keys and rotary knobs used to control the M7100
IP
Series Mobile Scan
and System Model radios. All functions and controls of the Scan radio operate the same as the
corresponding functions and controls on the System radio. The Scan radio is equipped with a 4-button
keypad and the System radio is equipped with a 16-button keypad.
Many of the control buttons and keys have been or can be programmed to have a primary function and a
secondary function. The SCAN button can be programmed (as a secondary function) to toggle the keypad
keys between their primary function and their secondary function.
8.1 POWER ON-OFF VOLUME KNOB
This rotary knob powers the radio ON and OFF and adjusts the receiver volume. Rotating
the control clockwise out of detent applies power to the radio. A single alert tone sounds
(if enabled through programming) to indicate the radio is operational.
Rotating the control clockwise increases the volume level. Minimum volume levels can be programmed
into the radio to prevent missed calls due to a low volume setting. While adjusting the volume, the display
will briefly indicate the volume level (i.e. VOL = 31). The volume range is from a minimum level of zero
(displayed as OFF in the display) up to 31, which is the loudest level.
8.2 SYSTEM/GROUP CHANNEL KNOB
This rotary switch selects the systems or groups/channels, depending upon programming.
This 16-position rotary switch has no stop or detent. See SYSTEM/GROUP/CHANNEL
SELECTION section for more details.
8.3 RAMP CONTROL
The primary function of this rocker type button is to scroll through the System list or the
Group/Channel list depending upon programming. The secondary function is to increment o
r
decrement items within a list (phone list for example). Press , to scroll in increasing orde
r
and press
. to scroll in decreasing order. To auto-ramp, press and hold the button.
8.4 SCAN ON/OFF
The primary function of this button is to toggle scan operation ON and OFF. When the radio
is scanning, the SCAN LED is on and all groups or channels in the scan list of the currently
selected systems are scanned.
The secondary function of the SCAN button is to toggle the keypad buttons between their primary function
and their secondary function.