Buttons, Keys and Accessories 3-135
March 2009 Chapter 3 - MTP850 Ex/MTP810 Ex Product Information Manual 6866588D21-D
28.3.16 TMO <=> DMO Switch
When this option is assigned to a button, the user is able to change the terminal’s operational mode
between TMO and DMO via a single button press.
28.3.17 TMO Talkgroup Scan
This one touch option is used to enable/disable talkgroup scan.
Related field is:
Paragraph 14.14 "Talkgroup Scan"
28.3.18 Backlight Adjustment
This option allows different backlight functionality to be programmed to different buttons. This option
has the same available parameters as the Display Parameters \ Display Options.
Related field is:
Paragraph 23.1 "Display Options".
28.4 Rotary Knob Options
The menu has the following programmable features that cater for the dual functionality of the rotary
switch. The rotary switch can be used to scroll all available lists and, or to adjust the audio volume.
Normal rotation will adjust the volume, this is also the default in dual mode. Pressing the switch knob
down will select the ‘List Mode’, release the knob, then rotate it to scroll the list. The list being
scrolled is dependent upon which mode the terminal is in, for example Private Call Mode, the button
will scroll the Private Call list; Group Mode, the button will scroll the available Talkgroups in all
available ranges.
There are two methods for returning to the normal volume operation mode and this is dependent
upon the Rotary Switch Knob Timer. If set to zero, the user must manually switch back to normal
volume operation by again pressing the Rotary Control Knob, otherwise with a time set, the terminal
will automatically return to normal volume operation after this time period.
There are 3 choices associated with this option, click on the down arrow and select the required
option.
28.4.1 Rotary Knob Mode
This has the following selectable options:
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