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 Superseded Technical Information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
2. Installation and Operation
2.1 Installation
MX800 series radios are securely packed for transport with special moulded
packers within a pasteboard container. Before unpacking the MX800 radio,
please inspect the packaging for signs of damage and report any damage to
your MX800 distributor.
Upon unpacking of the MX800 radio, please ensure that all items shipped
were received, report any missing items to your MX800 distributor.
All ports on the rear of the radio should be carefully examined to ensure that
packaging has not become wedged inside them. It is very important to
examine the fan as operation of the radio will be affected if any packaging or
shipping damage causes the fan to stop working.
If you intend to install the radio in an equipment rack consult the supplier’s
instructions for your system. Spectra Engineering recommends that the radio
be secured into the rack system using four screws through the mounting holes
in the front panel near the handles. If the radio is to be used in a stand-alone
configuration, ensure that it is in a secure, dry location with sufficient air
space around it to allow for adequate ventilation.
It is recommended that the chassis is earthed to the equipment rack. A
grounding screw terminal is provided on the left side of the main chassis for
connection to the site ground point (Protective Earth).
The wire is terminated with a closed loop ring terminal (eyelet) connector
which is fixed to the earthing screw with a lock washer to stop them working
loose. It is important that the earth wire connector is located at bottom,
closest to the chassis.
The earthing conductor should be connected to the best possible earth, such
as an earthed mounting plate or an earth rod. Remember that the earthing
conductor must be as short as possible and lowest resistance typ. <0.1ohms.
It is recommended to protect the Base Station from lightning, by using a
lightning arrestor. There are many publications covering antennas and their
installation. Consult with your local dealer for more information and
recommendations.
Equipment connection details are located in Appendix 7.1. The MX800 will
draw approximately 10A (band dependent) on transmit and the gauge of the
DC cable fitted to the 12V supply connector should be adequate to ensure less
than 0.5V volt drop at this current. To maintain compliance with R&TTE
(CE) approval the DC cable length should not exceed 3 metres.
NOTE: The MX800 contains No reverse polarity protection
. Be sure both the
positive (red) and negative (black) terminals are correctly connected and an
inline 15Amp fuse is fitted on the Positive wire. See example in picture below
(Not include).
Fuse Link
15Amp Fuse
Inline Fuse
Holder
© SPECTRA ENGINEERING 2008 Revision 4.3.1B
11