User's Manual

Table Of Contents
MX800 Transceiver Installation & Operation
© SPECTRA ENGINEERING 2008 Revision 4.3.1B
14
MXTOOLS automatically polls the bussed radios to determine which
addresses are active when the "Use Network" button is selected in the initial
connect screen (MXTOOLS version 2.8.1 or later).
Refer application note AN-MX800-002 for more details on networking,
available from www.spectraeng.com.au web site.
2.3.2 Setting to Work
The following sections describe the steps necessary to set the MX800 to
operate as required.
2.3.2.1 Setting Micro Controller Jumpers
The micro controller layout is contained in the drawing section and the
position of the jumpers and DIP switches (highlighted) are shown below. The
jumpers and switches are used for setting the general configuration of the
audio processing for both the TX and RX paths as well as various
miscellaneous functions.
Table 2-1 below summarises the functions of the jumpers.
JMP Function / Description Default
Selection
Default Position
JMP 1 Selects either default RUN or
EMULATE mode for the micro
processor.
Run 2-3
JMP 2 Enables the WATCHDOG auto
reset function in the
microprocessor.
Enabled 1-2
JMP 3 Enables or disables the PRE-
EMPHASIS for the TX audio.
Enabled 1-2
JMP 4 Enables or disables the
COMPRESSOR for the TX
audio.
Enabled 1-2
JMP 5 Enables or disables the HIGH
PASS FILTER for the RX audio.
Enabled 2-3
JMP 6 Enables or disables the LOW
PASS FILTER for the RX audio.
Enabled 2-3
JMP 7 Enables or disables the DE-
EMPHASIS processing for the
RX audio.
Enabled 2-3
JMP 8 Enables a direct connection to the
TX modulator. Select either
Wide Band or Wide Band filtered
and limited or nil.
DC-FM 1-2
JMP 9 TX VF Loopback control.
Trunking LIFUISEN function.
The function polarity or nil can be
selected.
Active low 1-2