User's Manual
Table Of Contents
- 1. General Description
- 2. Installation and Operation
- 3. Options
- 3.1 T01 Programmable Channel Spacing
- 3.2 T02 Programmable CTCSS encoder/decoder
- 3.3 T03 Programmable DCS/CTCSS encoder/decoder
- 3.4 T05 Balanced and Isolated VF plus E&M
- 3.5 T06 Simplex Changeover Relay
- 3.6 T08 VF Delay
- 3.7 T09 300Hz Upgrade HPF Filter
- 3.8 T10 Power Save Mode
- 3.9 T11 Combined Options
- 3.10 T12 External Reference Oscillator Input
- 3.11 T13 Local Speaker, Mic Socket and Front Panel Mute
- 3.12 T14 Local Channel Change
- 3.13 T16 1PPM Frequency Stability
- 3.14 U69 Extended Temperature Range Verification
- 3.15 T19/26 Line Interface Board.
- 3.16 T29 Balanced and Isolated VF plus E&M
- 3.17 T31 Network Adapter
- 3.18 T34 Ethernet option
- 3.19 T36 Option - TX Ref Oscillator input and Modulator
- 6. MX800 Base Station Fault Finding Procedure
- 7. Appendices
- 7.1 MX800 Interface Connections
- 7.2 CN2 DB9 Female Monitor Connector
- 7.3 CN3 DB25 Female Digital I/O Connector
- 7.4 MX800 Specifications
- 7.5 Channel Select DIP Switch Settings
- 7.6 MX800 Model Number Configuration Guide
- 7.7 MX800 System Applications
- 7.7.1 Conventional base station/repeater
- 7.7.2 Link transceiver
- 7.7.3 Data transceiver
- 7.7.4 Paging transmitter
- 7.7.5 Trunking Base Station
- 7.7.6 Systems base
- 7.7.7 Repeater with Morse ID
- 7.7.8 Simplex base station
- 7.7.9 Duplicated base station
- 7.7.10 Power Save base station
- 7.7.11 Tone key base station
- 7.7.12 Voting base station
- 7.7.13 Simulcast base station
- 8. Superseded Technical Information
- 9. Drawings
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










