MICROLITE TRANSMITTER HD/SD COFDM Transmitter User Manual IMT PUBLICATION: M22-0005-00A, REV 0.
MicroLite Transmitter User Manual Revision History Date May 16, 2011June 13, 2011 July 20, 2011 August 17. 2011 Revision Modified By Description 0.0D DLA(MH) Initial release to approvers 0.1D 0.2D DLA / MH MH Ongoing updates and clarifications (WIP) Added regulatory text (FCC and IC) MICROLITE TRANSMITTER User Manual IMT Publication: M22-0005-00A IMT, LLC. 200 International Drive Mt. Olive, NJ, 07828, USA. T +1 908 852 3700 F +1 908 813 0399 www.imt-solutions.
MicroLite Transmitter User Manual CAUTION! RISK OF ELECTRICAL SHOCK. DO NOT REMOVE COVERS. Do not remove any covers Refer servicing to qualified technicians only Disconnect all power before servicing Read and perform all instructions carefully Failure to follow suggested instructions and guidelines may void all warranties PRUDENCE! RISQUE DE CHOC ÉLECTRIQUE. NE SUPPRIMEZ PAS LES COUVERTURES. Ne supprimez pas les couvertures Voir entretien à qualifiés Techniciens seulement.
MicroLite Transmitter User Manual FCC STATEMENT This equipment (FCC ID: I4U-58MLT) has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. DÉCLARATION DE FAC Cet équipement (FCC ID: I4U-58MLT) a été testé et de respecter les limites pour une classe b dispositif numérique, conformément à la partie 15 des règles de la FCC.
MicroLite Transmitter User Manual IC Notice/:IC Avis 1. Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.
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MicroLite Transmitter User Manual MICROLITE TRANSMITTER User Manual Contents 1 Introduction ______________________________________________________________________ 10 1.1 2 MICROLITE Description _____________________________________________________________ 12 2.1 Application Diagram __________________________________________________________ 13 2.2 Theory of Operation __________________________________________________________ 14 2.2.1 2.2.2 2.2.3 2.2.4 2.2.5 2.2.6 2.3 2.3.1 2.3.
MicroLite Transmitter User Manual 4.5 Antenna Installation __________________________________________________________ 26 4.6 Connector Pin Assignment Information _______________________________________ 27 4.6.1 4.6.2 4.6.
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MicroLite Transmitter User Manual 1 Introduction This document is a user manual for RF CENTRAL’s MICROLITE microwave video transmitter. The MICROLITE is a compact transmitter that digitally encodes video signals and transmits them using COFDM modulation over microwave frequencies using secure methods. The unit accepts either HDSDI, SD-SDI, or composite video inputs in NTSC or PAL format, and can also accept User Data (e.g. NMEA GPS sentences) for transmission along with the main input signals.
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MicroLite Transmitter User Manual 2 MICROLITE Description This chapter describes the MICROLITE transmitter theory of operation, features, and benefits. It also contains a block diagram of the MICROLITE transmitter circuitry and a typical application example. The MicroLite Transmitter has external connectors and features direct plug-in compatibility with off the shelf equipment using industry standard interfaces.
MicroLite Transmitter User Manual 2.1 Application Diagram Typically the MicroLite Transmitter is simply camera mounted. However, more complex applications are possible per user requirements. Figure 2-1 shows a non-typical MICROLITE Transmitter application, which includes a PC for configuration. The MICROLITE TX may be programmed by a PC or host processor while connected in the application, or it may be pre-configured and installed in the application without any programming required during operation.
MicroLite Transmitter User Manual 2.2 Theory of Operation Major blocks in the MICROLITE TX include: • Video Input Interfaces - ASI or HD-SDI, SD-SDI; NTSC or PAL • Stereo Audio Input Interface • MPEG4 Video Compression Circuit • COFDM Modulator • Microwave Transmitter and Antenna Connector • Programmers Serial Interface for Remote Control Purposes • Internal Microprocessor and Memory • Power Circuitry Figure 2-2: Internal Block Diagram Revision 0.
MicroLite Transmitter User Manual 2.2.1 Power, Remote Control, and User Data Interface Connector The MicroLite Transmitter Power, Remote Control, and User Data interface includes power and ground connections plus two RS-232 serial port interfaces. 2.2.2 Audio and Video Input Connectors The MICROLITE TX has two analog audio inputs that can be used for stereo audio and HD/SD-SDI or NTSC/PAL video input. Refer to Chapter 3 for specifications of these signals. 2.2.
MicroLite Transmitter User Manual 2.3 Remote Control and Firmware 2.3.1 Remote Control via Serial Interface An RS-232 command set is implemented to allow remote control of all configuration options, as well as monitoring of internal status and settings. Commands and responses are sent via the RS-232 serial interface located on the Power/Control connector. Our “Nano Controller” GUI is available for controlling the unit via the RS-232 serial interface.
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MicroLite Transmitter User Manual 3 Specifications 3.1 RF Table 3-1: Frequency Band Coverage Frequency RF Power Base Part Number (GHz) (dBm) 23MLT-23-U3-C3 2.200-2.400 23 58MLT-20-U3-C3 5.725-5.850 20 DC Power (W) 13 15 Tuning step size ........................................................ 1 MHz step size Frequency stability..................................................... ± 10ppm Standby mode ............................................................ No RF output Normal ........................
MicroLite Transmitter User Manual 3.4 MPEG Encoder Standard ................................................................... MPEG-4 Part 10 / H.264 AVC Video • Video Coding ................................................. AVC • Video Input: ................................................... Composite • NTSC: ........................................................... 720 x 480(4:2:0) • PAL: .............................................................. 720 x 576(4:2:0) • SD-SDI input: ................
MicroLite Transmitter User Manual 3.7 Environmental Table 3-2: Environmental Specs Item Specification Temperature Range, Operational, Bottom Surface Temperature Range, Storage Humidity Altitude, Operating Altitude, Storage –10° to +50°C (Base plate temperature. The bottom surface of the MICROLITE must be maintained within the temperature range listed here.) –40° to +80°C 0% to 95% RH, non-condensing 20,000ft (6,000m) maximum 50,000ft (15,000m) maximum 3.8 Physical Specifications Size: .................
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MicroLite Transmitter User Manual 4 Installation This chapter contains steps for installing the MicroLite transmitter in typical environments where it may be used. 4.1 Overview The MICROLITE Transmitter is typically camera mounted in a standalone system containing onlya camera and power supply. MICROLITE applications may also contain a host processor that is used in the field to re-configure settings. Revision 0.
MicroLite Transmitter User Manual 4.2 Identifying MICROLITE Physical Features and Interfaces Figure 4-1: MICROLITE Transmitter User Interface Figure 4-2: MLT Connectors Table 4-1: MicroLite Connectors Connector (from left above) Label on Unit Description Lemo 7 pin Power & Control Power, USB, RS-232 Remote Control Interface Telocate Audio Left Audio Line Input Telocate Audio Right Audio Line Input Lemo 5 pin Ext BNC Video & SDI Revision 0.
MicroLite Transmitter User Manual ______________________________________________________________ ! WARNING – DO NOT OPEN THE MICROLITE The MICROLITE Transmitter contains no user serviceable parts. Do not open the MICROLITE housing. Failure to comply will result in voiding of the warranty. ______________________________________________________________ 4.
MicroLite Transmitter User Manual Figure 4-4: MICROLITE Outline Drawings (Dimensions in Inches) Revision 0.
MicroLite Transmitter User Manual 4.4 Connect External Signals The MICROLITE connectors include the following major interfaces: • Power and Ground Plus RS-232 programming interface • Video Input Connector Accepts Composite Video, ASI, or SDI with appropriate cables. • Analog Audio 1 and 2 Line Inputs • User Data 4.4.1 Audio and Video Connect a video source to the appropriate video input. Connect audio sources to the two analog audio line inputs. 4.4.
MicroLite Transmitter User Manual 4.6 Connector Pin Assignment Information 4.6.1 Power/Control Connector Pinout Table 4-3: Power/Control Pinout Pin Function 1 +12VDC 2 RS232 RX 3 USB DM 4 USB DP 5 RS232 TX 6 USB POWER 7 GROUND Notes Figure 4-5: Power/Control Connector Detail Revision 0.
MicroLite Transmitter User Manual 4.6.2 Audio Input Connectors Pinout Table 4-4: Audio 1 & 2 Pinout Pin Function Notes 1 LINE SELECT 2 +5V MIC BIAS 3 AUDIO IN Audio line input. 4 GROUND Connected internally to signal & chassis ground Figure 4-6: Audio Connector Detail 4.6.
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MicroLite Transmitter User Manual 5 Operation While this chapter contains basic information about the operation of the MicroLite transmitter, the programming of the unit (including preset configuration) via the Nano Controller GUI is not covered. Please refer to the “Nano Controller” manual (IMT Publication: M27-0001-00A) for detailed information on how to program and configure the unit. In this chapter you will find info on how to use the MicroLite transmitter to transmit video, audio, and user data.
MicroLite Transmitter User Manual Figure 5-1: Control and Monitoring User Interface Buttons: SET Advances the unit through the presets. The 1-12 LED’s indicate in GREEN which preset is currently active. TX / STBY Toggles between Transmit and Standby modes. The appropriate LED is lit. HI / LOW Toggles between High and Low Power modes. The appropriate LED is lit. LED Off Toggles all front panel LED’s OFF/ON In addition to those mentioned above, the following LED indicators are provided.
MicroLite Transmitter User Manual 5.5 Put the unit in Transmit Mode Press the TX / STBY toggle button to put the unit in Transmit mode. Pressing the button again will put the unit in Standby mode (no RF output). 5.6 Select Power Level Press the HI / LOW toggle button to select the power level desired. In HI mode, the unit will output its full rated power. In LOW mode, the output will be approximately 6dB down from the HIGH power output. 5.
MicroLite Transmitter User Manual 5.10 Using alternate/custom controllers The implementation of an RS-232 command set, or Remote Protocol, allows the use of customized interfaces to perform virtually all unit operations, including: • Configure Settings • Query Status The Remote Protocol consists of command and response messages, or packets. The internal CPU handles interpretation of the packets to set unit parameters, and provide responses back through the serial interface.
MicroLite Transmitter User Manual 5.11 Troubleshooting Table 5-1: Table of Troubleshooting Tips Problem No video Video Signal Reception Poor MICROLITE Programmable Serial Interface Does Not Respond 5.12 Possible Explanations Actions to Take No Power Check power source Camera Malfunction Try a different camera Possible Receiver system issue Verify that all modulation parameters match at transmitter and receiver.
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MicroLite Transmitter User Manual Proprietary Information and Disclaimer Notice All information and graphic images contained within this manual are the sole property of IMT, LLC, and are issued in the strictest of confidence. This material may not be reproduced, stored, copied, or converted in any form, nor shall it be disclosed to others or used for manufacturing or any other purpose without the written permission of authorized IMT personnel.
MicroLite Transmitter User Manual Technical Support Information Technical Support personnel are available to extend technical assistance to customers while installing, operating, or troubleshooting IMT equipment. Please have your model number and serial number available. Telephone During IMT business hours, 8:30am - 5:30pm EST (-5 Hours, GMT), call: US ........................................................... 908-852-3700 International ............................................
MicroLite Transmitter User Manual IMT, LLC. 200 International Drive Mt. Olive, NJ, 07828, USA. T +1 908 852 3700 F +1 908 813 0399 www.imt-solutions.com Revision 0.
