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Summary of Contents for Audeon MCTX-16
- Page 1 Multi Channel Transmitter (MCTX-16) Installation Instructions...
- Page 2 Multi Channel Transmitter (MCTX-16) Installation Instructions Introduction The Multi Channel Transmitter (MCTX-16) is designed as part of the Audeon low power UHF radio system for use in fitness, conference and exhibition centres. It is compatible with the MCTX-8 and the single channel system (SCTX) and uses the same transmission frequencies. The transmitter has the new input module (RF16) which provides two mono RF channels.
- Page 3 Multi Channel Transmitter (MCTX) - Installation, Commissioning and Maintenance Compliance All systems are tested at the factory before shipping to ensure that they comply with the following EU directives and standards: Council Directive 89/336/EEC the EMC directive European Standards 1) EN 50 081-1 Emission EN 50 082-2 Immunity EN 60 555 Conducted Emissions...
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Page 4: Specification
Multi Channel Transmitter (MCTX) - Installation, Commissioning and Maintenance Specification Audio Signal Input -10.0 dBu (0.245 v) Input impedance 10 k Ohms unbalanced (balanced available) Input headroom +20 dB Signal to noise ratio 80 dB Input limiter operates at +6 dB Noise reduction 2:1 compression - expansion (DBX) Audio bandwidth... -
Page 5: Installation Instructions
Multi Channel Transmitter (MCTX) - Installation, Commissioning and Maintenance TV channel 69 (licence required from JFMG in UK) Channel 9 854 60 MHz Channel 10 855 90 MHz Channel 11 856 90 MHz Channel 12 857 60 MHz Channel 13 858 70 MHz Channel 14 859 30 MHz... - Page 6 Select the best location in the room and position the aerial so that it is mounted vertically (with the Audeon text reading the correct way round) to provide the strongest signal. The range which you can expect is up to 100 metres but this is dependant on other factors such as walls, metal objects, other equipment and people, all of which will attenuate the signal.
- Page 7 Multi Channel Transmitter (MCTX) - Installation, Commissioning and Maintenance The system has been designed to allow for up to 10 dB cable loss between the processor and the up converter. To allow for cable loss of less than 10 dB an attenuator will be required in the FM cable to compensate for the cable loss.
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Page 8: Connecting The Audio Signals
Multi Channel Transmitter (MCTX) - Installation, Commissioning and Maintenance are only approximate and will be affected by adjacent objects reflecting and absorbing the signals. Warning: Do not connect your spectrum analyser directly to the output of the transmitter as the high signal level could permanently damage the mixer diode in the analyser. -
Page 9: Internal Settings
Multi Channel Transmitter (MCTX) - Installation, Commissioning and Maintenance The Audio output is available on a three pin male XLR connector. The connections are; pin1 screen, pin 2 + phase pin 3 - phase. The microphone inputs use a five pin female XLR connector. The connections are; pin 1 screen pin 2 microphone + phase pin 3 microphone - phase... - Page 10 Multi Channel Transmitter (MCTX) - Installation, Commissioning and Maintenance If you wish to change the frequency of an individual channel then you will need to adjust the frequency select switch. Rotate the small HEX switch (SW 1 for odd channels or SW2for even channels) to the required channel.
- Page 11 Multi Channel Transmitter (MCTX) - Installation, Commissioning and Maintenance Listening tests After you have powered the transmitter walk round the venue to check the quality of reception and coverage. You should receive signals within a radius of 100 metres from the aerial depending on the layout of the building and objects within the room.
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Page 12: Troubleshooting
Multi Channel Transmitter (MCTX) - Installation, Commissioning and Maintenance Troubleshooting Power LEDs do not light Check that the power is connected to the transmitter, is the mains plug connected? Is the mains fuse O K? C heck the DC fuses in the pow er supply card (RF9). -
Page 13: User Maintenance
Multi Channel Transmitter (MCTX) - Installation, Commissioning and Maintenance The audio signal is noisy The receiver is too far from the transmitter. The aerial has been mounted in a poor location or is horizontal instead of vertical. There are ob jects in the signal path. -
Page 14: Spare Parts
Service In the UK Audeon has a dedicated service line (0113 252 5582) to co-ordinate maintenance and repairs of Audeon equipment. The operator should be made aware of the benefits of expert advice and support. The telephone line is staffed by experienced engineers who are familiar with the Audeon range of products. - Page 15 Multi Channel Transmitter (MCTX) - Installation, Commissioning and Maintenance Appendix i Coax C able Losses Cable Impedance Loss per Metre @ 100 MHz @ 1000 MHz RG 58 50 ohms 0.21 dB 0.76 dB RG 223 50 ohms 0.14 dB 0.29 dB UR M43 50 ohms...
- Page 16 Multi Channel Transmitter (MCTX) - Installation, Commissioning and Maintenance Audeon products are designed by John Varley and are manufactured in the UK by M-Jay Electronics Limited Albion Mills, Church Street, Morley, Leeds. LS27 8LY Phone +44 113 252 4956 +44 113 252 5542...
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