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 Superseded Technical Information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
Technical Manual Appendices
7.4.5 Ancillaries
Parameter Specification
TX Timer: Programmable, on/off selectable
VF Level to Line: +6 to -15dBm, 600 ohms unbalanced or
differential
VF Level from Line: +6 to -15dBm, 600 ohms unbalanced, with
Compressor enabled.
Pre-Emphasis Accuracy: Within +1,-3dB of 6dB per octave curve
De-Emphasis Accuracy: Within +1,-3dB of 6dB per octave curve
VF Compressor Range: >30dB for line input
Digital Outputs: 1K-ohm 5V source/sink available
Alarm Output: Open collector
PTT Input: +5V Logic active low
Channel Select: 8 way Dip switch or RS232 or BCD/Binary
Repeater Tail Timer: Programmable
Table 7-10 Ancilary Specifications
7.5 Channel Select DIP Switch Settings
Refer to section 2.2.2.3 for a description on the alternative methods to select
the operating channel. If a hardware channel select method is chosen the
following table shows how to set the switches for each channel. Select the
fixed channel for the MX800 by using the DIP switch DIP1 located on the
Micro Controller Board. Channel 1 to 255 is available in binary selection.
Switch position 1 is channel 1, position 2 is channel 2, position 3 is channel
4, position 4 is channel 8, position 5 is channel 16, position 6 is channel 32,
position 7 is channel 64, position 8 is channel 128.
A table of DIP switch 1 settings follows, where switch ON is indicated by an
"x" in a cell and no entry in a cell represents a switch OFF.
CH
SW1
SW3
SW4
SW5
SW6
SW8
CH
SW1
SW3
SW4
SW5
SW6
SW2
SW7
SW2
SW7
SW8
0 13 X X X
1 X 14 X X X
2 X 15 X X X X
3 X X 16 X
4 X 17 X X
5 X X 18 X X
6 X X 19 X X X
7 X X X 20 X X
8 X 21 X X X
9 X X 22 X X X
10 X X 23 X x X X
11 X x X 24 X X
12 X X 25 X X X
© SPECTRA ENGINEERING 2008 Revision 4.3.1B
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