Micron 700 Series Manual
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Micron 700 Series Manual

Multi-frequency pocket transmitter
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700 SERIES-MULTI-FREQUENCY
POCKET TRANSMITTER
TX700.148
TX700.132
TX700.64
TX700.32

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Summary of Contents for Micron 700 Series

  • Page 1 TX700.148 TX700.132 TX700.64 TX700.32 700 SERIES-MULTI-FREQUENCY POCKET TRANSMITTER...
  • Page 2 Page 2 tx700ins2master.doc file:...
  • Page 3 INSTRUCTION MANUAL Covers the following models 700 SERIES : TX700.148, TX700.132, TX700.64, TX700.32, Part No IMTX700-1.1 Page 3 file: tx700ins2master.doc...
  • Page 4 Page 4 tx700ins2master.doc file:...

  • Page 5: Table Of Contents

    Transmitter Powering ............16 Battery Test and Transmitted Warning ......... 17 Automatic Level Control System .......... 18 Operating Instructions ............19 How to get the best from the MICRON ........ 21 Interference ................23 Technical Data ..............25 Antenna Data ............... 28 Transmitter Input Connectors ..........
  • Page 6 Page 6 tx700ins2master.doc file:...

  • Page 7: General Description

    General Description The Micron TX700’s sophisticated design is based around a low-noise VCO, with digitally controlled PLL circuit, producing the highest possible quality of transmitted signal. The lightweight, yet rugged aluminium extrusion case provides strength and durability, and is designed to withstand the heavy demands of location use, while being comfortable to wear - ideal for situations where concealment is important.

  • Page 8: Main Features

    32 positions – TX700.32 Unique Micron Companding System The MICRON 700 series feature a double ended system which first compresses the dynamic range of the signal in the transmitter, and then expands it again in the receiver. Automatic Gain Control Option The design of the limiter in the MICRON transmitter enables it to be used as an automatic gain control system without the pumping effect associated with audio A.G.C.
  • Page 9 A common practice is to adjust the audio gain of the transmitter until distortion is heard and then 'back off a bit'. The MICRON transmitter is fitted with a simple L.E.D.
  • Page 10 Electronic Reliability Exhaustive test procedures account for roughly half the manufacturing cost of a MICRON. The transmitters and receivers are constructed from pre-aligned electronic modules. The highest risk of component failure is usually early in its working life.

  • Page 11: Unique Micron Companding System

    Unique Micron Companding System The TX700 Series body-worn transmitters feature the Unique Micron Companding System. This double-ended system first compresses the dynamic range in the transmitter and then expands it again at the receiver. The MICRON Companding System is a high performance symmetrical design.

  • Page 12: Control Panel

    Control Panel Audio Input Socket A 6 pin Lemo connector with gold plated pins. The microphone-input cable is connected by a push-pull action. The transmitter offers many audio input options depending on the pin configuration selected. The variations in pin selection is detailed under 'Transmitter cable connection data'.

  • Page 13: Switch Panel

    Switch Panel Frequency change switch (TX700.148/TX700.132, TX700.64/TX700.32) Two BCD coded switches give the user a choice of up to 100 operating frequencies (depending upon the model). There are 4 models available: Model Switch Combination Number of Channels Switch Bandwidth TX700.148 10 x 10 48 MHz TX700.132...
  • Page 14 Switch Panel Page 14 tx700ins2master.doc file:...
  • Page 15 Switch Panel Page 15 file: tx700ins2master.doc...

  • Page 16: Transmitter Powering

    2) External Powering It is recommended that external power be only applied via a MICRON TLP lead as this lead includes a 9V voltage regulator and dc filtering. NOTE: Using a transmitter supply greater than 9 volts will not increase the output power and may cause damage to the transmitter.

  • Page 17: Battery Test And Transmitted Warning

    Transmitted battery warning A pair of lamps on the LED display of the matching MICRON receiver flash regularly 2-3 times per second when the TX battery volts fall to 6.5 Volts. The TX batteries should be changed at the first opportunity.

  • Page 18: Automatic Level Control System

    Automatic Level Control System The level control is, in principle, a peak limiter. Its function is to prevent distortion due to overmodulation. Because of the definitive design, it can be used as an audio AGC system with characteristics much improved over the 'automatic record' facility of most tape recorders.

  • Page 19: Operating Instructions

    Operating Instructions Receiver (RX) setting up - (SDR770 series) Set up the receiver referring to the relevant instruction manual Transmitter (TX) Setting Up • Fit a PP3 9V battery • Connect provided TX antenna (flexible SMA antenna) • Set your TX frequency same as RX •...
  • Page 20 Operating Instructions 'NORMAL' This method suits most situations when there is time for a rehearsal and gives the optimum balance between dynamic range and signal to noise ratio. Unless an unexpectedly loud sound occurs, the limiter will not operate. Adjust SET LEVEL control, while performer speaks at correct level, so that -10 lamp flashes regularly and '0' lamp flashes occasionally.

  • Page 21: How To Get The Best From The Micron

    Keep the TX antenna reasonably straight and away from the microphone lead. Avoid coiling the antenna, especially near the transmitter case. Receiver Whenever possible use a MICRON diversity receiver to ensure optimum operating reliability. A standard non- diversity receiver will also give good results if the following suggestions are applied. Antenna Raise the antenna as high as possible and keep it away from metal objects.
  • Page 22 Public address, fold back and sound reinforcement applications When using a Micron together with a loudspeaker system, it is important to make the setting up adjustments in the correct sequence to avoid the danger of acoustic feedback during quiet pauses.

  • Page 23: Interference

    TV sets, digital displays, pocket calculators, mobile phones and the like. Interfering signals can cause an apparent loss of range. Before suspecting a defect in the MICRON check the system in another location, which is free from interference.
  • Page 24 Interference (Noise in this case means a twittering type of sound 'birdies' from the interfering signal). With the Companding system, interfering signals are held down in quiet passages but rely on the masking effect during loud passages. Under severe interference or under weak signal conditions, sudden large audio input level changes can produce a short period of increased background noise.

  • Page 25: Technical Data

    Technical Data Except where stated, data applies to all MICRON 700 Series transmitters, although there may be minor variations for some countries. RF TRANSMISSION SYSTEM Carrier frequency (to order)................. 470-865MHz Number of frequencies..................up to 100 Switching range ....................up to 48 MHz Modulation system....................
  • Page 26 Technical Data BASS CUT …………………………………………………………………………….. Fixed Bass Cut: -5dB at 50 Hz (nom.) Additional 6dB cut at 60Hz LEVEL CONTROL …………………………………………………………………….. Manual pre-set, 40dB in 8 steps VOLUME LED INDICATORS ………………………………………………………… ‘0’ light at ALC threshold ‘-10’ light at 10dB below ALC threshold (ALC system allows short transients to pass up to +6dB)
  • Page 27 Technical Data Current consumption ………………………………………………………………….. 65mA ± 10% Battery Life ……………………………………………………………………………. Approx. 6 hours External Power …………………………………………………………………………. 7.5 to 16V dc (with ‘TP’ cables) DIMENSIONS Width ……………………………………………………………………………………. 63mm Depth ……………………………………………………………………………………. 22mm Height …………………………………………………………………………………….97mm Weight ……………………………………………………………………………………146 grams ACCESSORIES SUPPLIED …………………………………………………………….Antenna ........................... Instruction manual ...........................

  • Page 28: Antenna Data

    Antenna Data for Flexible Wire Antennae COLOUR CODE CENTRE FREQUENCY USABLE FREQUENCY ACTIVE LENGTH (mm) RANGE BLACK 177.00 169.0 - 186.0 *417 BLUE 196.00 186.0 - 206.0 *376 GREEN 204.00 191.0 - 217.0 *362 BLACK 500.00 470.0 - 530.0 BROWN 550.00 520.0 - 580.0 570.00...

  • Page 29: Transmitter Input Connectors

    Transmitter Input Connectors PCB Mounted Multi-Way Lemo or ODU Connector. Top View CONNECTIONS FUNCTION NOTES Mic input -5V out for negative biased microphones BATT/EXTPWR BATT+ Volts to power P48 or to externally power TX with TLP cable Battery - Link Battery - and 0V to turn TX ‘ON’...

  • Page 30: Transmitter Cables

    MICRON numbering scheme for Lemo or ODU cable connector View from soldering side of connector Lemo FGG.OB.306 CLAD31Z ODU S20BOC-TO6MCCO-30GP 6 Pin Microphone Input Cable Connector The pin numbers indicate the wiring standard set by MICRON and all cables in this manual. Page 30 tx700ins2master.doc file:...
  • Page 31 Dynamic Microphone Cable TRANSMITTER CABLE CODING EXAMPLE YELLOW DYNAMIC WHITE CONDENSER (A/B POWERED) GREEN CONDENSER (12V PHANTOM) BLACK LINE BLACK (SPLIT CABLE) LINE (EXTERNAL POWERING) Page 31 file: tx700ins2master.doc...
  • Page 32 TDN15CF6 (Dynamic Microphone Cable, Code Yellow) TCAB15CF6 (Condenser AB Powering Cable, Code White) View of LEMO from soldering side of connector. The pin numbers indicate the wiring standard set by MICRON and all cables in this manual. Page 32 tx700ins2master.doc...
  • Page 33 TCP15CF6 (Low Voltage 12V Phantom Powering Cable, Code Green) TL20CF6 (Line Input Cable, Code Black) View of LEMO from soldering side of connector. The pin numbers indicate the wiring standard set by MICRON and all cables in this manual. Page 33 file: tx700ins2master.doc...
  • Page 34 TLPO7CF6 (Line Input With External Powering Cable – Y Cable, Code Black) P48 MICRON (Phantom Powering 48V) View of LEMO from soldering side of connector. The pin numbers indicate the wiring standard set by MICRON and all cables in this manual. Page 34 tx700ins2master.doc...
  • Page 35 2TLPO7CF6 (Double Line Input with External Powering Cable, Code Red/Blue) View of LEMO from soldering side of connector. The pin numbers indicate the wiring standard set by MICRON and all cables in this manual. Page 35 file: tx700ins2master.doc...

  • Page 36: Cable Ended Microphones

    Cable Ended Microphones View of LEMO from soldering side of connector. The pin numbers indicate the wiring standard set by MICRON and all cables in this manual. Page 36 tx700ins2master.doc file:...
  • Page 37 Cable Ended Microphones View of LEMO from soldering side of connector. The pin numbers indicate the wiring standard set by MICRON and all cables in this manual. Page 37 file: tx700ins2master.doc...
  • Page 38 Page 38 tx700ins2master.doc file:...
  • Page 39 Appendix...
  • Page 40 Page 40 tx700ins2master.doc file:...
  • Page 41 COUNTRY ADDRESS Phone AUSTRALIA dB AUDIO VISUAL PTY LTD +61 3 9819 3630 +61 3 9819 3636 8 Guest Street, Hawthorn Victoria 3122. Australia BELGIUM ES VIDEO FACILITIES +32 1640 4020 +32 1640 5160 Technologielaan 3, Heverlee 3001. Belgium BRAZIL STERLING DO BRAZIL +55 21 622 1536 +55 21 622 1825...
  • Page 42 COUNTRY ADDRESS Phone E. EUROPE DENIS TYLER LTD +44 1494 866262 +44 1494 864959 59 High Street, Great Missenden, Buckinghamshire, HP16 0AL. England FRANCE GEDIS SARL +33 1 42 39 8080 +33 1 42 39 8687 112 Rue de Crimee, 75019 Paris. France GERMANY * AMBIENT RECORDING GMBH...
  • Page 43 A Blok D:5 Yildiz Posta Caddesi, Esentepe Istanbul, Turkey AUDIO ENGINEERING LTD +44 020 8341 3500 +44 020 8341 5100 Micron House, 3 New Road, London N8 8TA * Dealer. Please contact Audio Engineering Ltd. direct if you do not see a local distributor or dealer...
  • Page 44 AUDIO ENGINEERING LIMITED, MICRON HOUSE, 3 NEW ROAD, LONDON N8 8TA Telephone: +44 (0) 20 8341 3500 Fax: +44 (0) 20 8341 5100...

This manual is also suitable for:

Tx700.148Tx700.132Tx700.64Tx700.32

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