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 Superseded Technical Information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 Options
A range of reference frequencies from 1MHz to 16MHz can be used with this
option. With MXTOOLS, check your exact frequency can be programmed
and accepted.
3.12.2 Installation
Components Required:
1. BNC to Right Angle SMB Coaxial Cable Assy. Qty-1
2. N-Type to Right Angle SMB Coaxial Cable Assy. Qty-1
3. SMB right angle PCB mounted connector. Qty-1
4. Rear connector layout label Qty-1
5. 3x8mm machine screws Qty-4
6. Rear Connector label Qty-1
Test Equipment Required:
1. Communications Test Set
2. MX800 Radio Interface Box
Method – MX800 Chassis:
1. Remove the cover to the MX800 radio.
2. Remove the ribbon cable from the Exciter module.
3. Remove the coaxial cable Assy from the Exciter module.
4. Remove the Exciter module from the chassis by unscrewing the 2
M4x35mm screws.
5. Remove the receiver coaxial cable Assy from the chassis – Do not
discard the 2.5x5mm screws.
6. Remove the 16mm plug from the Simplex relay position.
7. Install the N-type coaxial cable Assy into the 16mm hole and secure with
the 3x8mm machine screws. Route this cable to the receiver module and
connect to the receiver-input connector.
8. Install the BNC-type coaxial cable Assy into the 13mm hole and secure
with the qty4 2.5x5mm screws. Route this cable underneath the PA
module to the location of the exciter External Reference input connector.
9. Re-install the exciter module (after it has been modified for this option)
with the qty2 4x35mm machine screws.
10. Connect all the necessary connectors to the exciter module.
11. Replace the rear connector label with that supplied.
© SPECTRA ENGINEERING 2008 Revision 4.3.1B
39