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 Superseded Technical Information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
3.13 T16 1PPM Frequency Stability
12.5 kHz channels Frequency band K to X (320-950MHz)
25.0 kHz channels Frequency band R to X (805-950MHz)
This option provides for 1PPM frequency stability for narrowband MX800s
in the K to X bands. This frequency stability is specified from –30° C to
+60° C.. 1PPM stability can additionally be used on any frequency band
above 66 MHz but the DC-FM transmitter modulation feature is not fully
specified below 400 MHz. Typically, this results in only some minor drop of
the low freq response or ability to set up the Transmitter modulation balance.
Also see section 3.19 and 3.10
3.14 U69 Extended Temperature Range
Verification
The MX800 is optionally available in an extended operating temperature
range version, extending the temperature range over –30° C to –10° C.
Additional testing and operational verification is done in an environmental
chamber at –30C for 24 Hours. An additional factory test report sheet is
provided at his temperature. Frequency stability is specified at 2.5PPM for
this option.
3.15 T19/26 Line Interface Board.
The MX800 T19 / T26 option board provides the radio base station with
utmost flexibility in system design and capabilities, with an extensive range
of new features.
Please consult Spectra, for the availability of these features or software
upgrades. Not all features are currently available.
♦ 2Wire (VF Hybrid) or 4Wire Selection, Balanced Audio, Dual E+M,
♦ VF Delay (To replace option T08)
Provides quiet mute switching similar to CTCSS Reverse burst.
♦ Base Station Variable Tone Voting
♦ Base Station Stepped Tone Voting
♦ Status Tone Encoding And Decoding (T19 only)
♦ Five Tone Encoded / Decoder (T19 only)
♦ DTMF Decoder
♦ Remote Control Capabilities
♦ Fast CTCSS Decoder
♦ VF Line compensation for SINAD Voters
♦ Real-time Clock
Due to ongoing development please refer to
www.spectraeng.com.au for
the latest information regarding this option. A technical manual is
available for this option please contact sales@spectraeng.com.au for a
copy of this manual.
© SPECTRA ENGINEERING 2008 Revision 4.3.1B
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