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 Superseded Technical Information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 Options
Method – Exciter Module:
1. Remove the cover to the exciter module.
2. Remove the exciter Printed Circuit Board from the base unit.
3. Remove the following components from the exciter board:
• X1 - TCXO
• R30 & R31
• TR7
4. Install and solder the right angle SMB PCB mounted connector into the
CN3 position on the exciter Printed Circuit Board.
5. Re-install the exciter Printed Circuit Board onto the base unit.
6. Re-install the cover to the exciter module.
MX800 Controller Setup
1. The TX external reference frequency that will be used is required to be
programmed into the radio via MXTOOLS. This can be achieved in the
MXTOOLS ‘Configuration’ heading under the ‘Hardware’ folder, insert
the required frequency into the ‘TX Reference Frequency’ box.
2. Download the Configuration change to the MX800.
MX800 Testing:
1. Connect a Communications Test Set via the RIB to the MX800.
2. Set the switches on the RIB to Line Audio and E&M.
3. Connect the External Reference source to the MX800 BNC connector.
4. Check that the exciter VCO is in ‘lock’.
5. Check that all the Transmit parameters (i.e. TX power, modulation, freq.
error) are correct. Correct any anomalies where necessary.
6. Set the test set to measure Rx parameters and ensure that the Receiver is
operating correctly.
7. Replace the MX800 cover.
© SPECTRA ENGINEERING 2008 Revision 4.3.1B
40