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Technical Manual
♦
Channel Change Control
Twin push wheel switches are fitted to the front panel to allow selection of
the operating channel. When fitted this switch is wired to the channel select
pins on SKC. 99/100 channels are selectable. Refer to Section 2.3.1.3 for
more details on alternative channel select methods.
MX920 Testing:
1. Connect a Communications Cable to the MX920.
2. Set MX920 into Diagnostics mode using the built-in radio configuration menu
system. The MX920 will periodically update the terminal screen with the selected
channel, the power supply voltage and various other diagnostic information.
3.
Change the channel on the local channel switches and check that the channel
selected on the push-wheel switch is in fact the channel that the Diagnostics
screen indicates.
4. Reset the MX920 operating channel to the required position.
© SPECTRA ENGINEERING 2003 Revision 1.1.4
Installation and Operation
13
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