TX518/TX523/TX530 L-Band Video Transmitters User's Guide & Operating Manual REV. A - 15 Aug 2007 http://www.avalonrf.com/ Avalon RF, Inc. • 344 Coogan Way • El Cajon, CA 92020 Phone: (619) 401-1967 • Fax: (619) 401-1971 • Email: sales@avalonrf.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual Page ii RF EXPOSURE INFORMATION Maximum Permissible Exposure Any Wireless Equipment can pose health hazards if precaution is not exercised in its use/operation, especially its proximity to the human body. Excessive absorption of RF energy in the body is known to cause Cancer and/or other diseases. The FCC has issued guidelines to determine the safe distance of a transmitting antenna from the human body, to limit absorption to safe levels.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 1. 2. 3. 4. Page iii Table of Contents General ................................................................................................1 Table 1 – Model/Output Power ............................................................1 Figure A – TX500 Series Controls and Connectors..............................3 Video ...................................................................................................4 Audio .................
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 1. Page 1 General The TX500 series rugged transmitters are intended for use in military, homeland security, mobile security, broadcasting and motion picture production. The TX500 Series is an FM modulated transmitter with a tuning range that is model dependent. See table below for frequency ranges.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual All transmitters offer the following features: • A single broadcast quality video channel with no delay. • One/Two (optional) broadcast quality audio channel/s Optional features (each ordered individually). • • • • Two-way Wireless Data Link (WDL) to a DX series receiver. Talk back audio channel. Alarm/Motion sensor interface. Telemetry inputs.
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AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 1.1 Page 4 Video. The video input is buffered, combined with the audio subcarrier/s, then DC level restored, limited by a white level clipping circuit, preemphasized and FM modulates the transmitter RF carrier. Avalon RF offers the following video indices of modulation: • Industry standard frequency deviation of 2MHz. Compatible to GMS, L3 and others. • Wide frequency deviation of 4MHz. 1.2 Audio.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 2. Specifications 2.1 User Interface. Page 5 a) On/Off Switch. The TX500 series transmitter has an on/off switch. This shuts off power to the entire transmitter. b) Power on LED. This LED has the following states: i) Green when power in on (only applicable for WDL). ii) Red when the transmitter is on air. c) Hands Free Back Channel (optional).
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 2.3 Page 6 Electrical Interface. The transmitter has the following interfaces: 2.3.1 Power Input a) The transmitters operate off a 9Vdc-16Vdc unregulated voltage source. This input is switched and protected against reverse polarity.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 2.3.4 "Talk back" audio channel to the transmitter operator (optional). Page 7 The “talk back” output drives an electromagnetic earpiece. 2.3.5 Two Way Wireless Digital Link (WDL) (Option 11) The WDL is a 9.6KBaud (standard, other Baud rates upto 56K are supported) Half-Duplex RS485 compatible serial interface. 2.3.6 Main RF output to antenna. a) The main RF output connector is a 50 Ω (ohm) female SMA receptacle.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual These analog inputs (maximum of 3) have a 1M Ω (ohm) input impedance and a sampling rate of 500Hz. Resolution is 8 bit.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 2.4 Page 9 Interconnecting. All interfaces to/from the transmitter are available on the connector. 2.4.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 2.5 Page 10 Mechanical 2.5.1 Mounting. Mounting can be done in one of the following methods: a) Clamping. Clamping (or hard mounting) is the only method of mounting in all fixed installations. Clamping is the preferred method of mounting in all mobile installations where most electrical interfaces are used. This is due to the heat sinking needed and the weight of the connector’s and the cable’s. b) Clip on. Avalon RF offers a clip on kit.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 2.5.2 Mechanical Data. a) Size 3.07” x 1.73” x 1.0 (see Figure G) 78mm x 44mm x 25.4mm b) Weight <5.6 oz. <158 gram c) Shipping weight <32 oz.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 2.6 Page 12 Environmental Conditions. The TX600 Series is designed to meet the following environmental conditions: 2.6.1 Operating temperature -4° to 122° F -20° to 50° C 2.6.2 Storage temperature -13° to 150° F -25° to 65° C 2.6.3 Vibration 1.5G, from 10Hz to 2KHz, sine wave, 3 axis 2.6.4 Shock 15G, 25msec, half sine wave, three axis 2.6.5 Humidity 5 to 95%, non-condensing 2.6.6 Inclination Any 2.6.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 3. Page 13 Operating the transmitter. Before applying power, make sure all connectors and all antennas are hooked up. NOTE The transmitter will not transmit unless it has an antenna. 3.1 The transmitter has two operator controls and one indicator: a) Channel select. Units that have a manual synthesizer have a 4-position dip switch that selects a channel number (from 1 to 16).
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 3.3 Page 14 General Guidelines The choice of a Transmitter and the Antenna to be used is dictated by power consumption, required distance of operation of the link, if it is a fixed or a mobile environment, the space constraints, the location itself (indoors or outdoors, presence of nearby objects like trees, bridges, etc.) and etc. Avalon RF will work with you to determine the right combination.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual Model TX518 TX523 TX530 Minimum Distance from Body (in Inches) Antenna 0 dBi 3 dBi 10 dBi 16 dBi Gain 2” 3” 4” 8” Distance 3” 4” 8” 16” 6” 9” 16” 32” Table 4 – Minimum Safe Distance Page 15 27 dBi 48” 84” WARNING: An Antenna extender cable is shipped with the TX5XX, it is meant to hold the antenna at the minimum safe distance from the human body.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 4. Ordering information 4.1 Base Models TX518-XX TX523-XX TX530-XX Page 16 Model dependent Freq range, FM modulated, O/P of 70mW Model dependent Freq range, FM modulated, O/P of 200mW Model dependent Freq range, FM modulated, O/P of 900mW All units come with the following standard accessories: 4.1.1 Omni directional whip antenna 4.1.2 A 3-foot power cord with flying leads, to be connected to a customer specific battery pack. 4.1.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 4.2 Options. 4.2.1 Option 11 – Wireless Data Link (WDL) Includes an AX502 omni-directional whip antenna with MCX connector. 4.2.2 Option 31 – Talk back audio channel. Requires option 11.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual 4.3 Page 18 Recommended accessories. 4.3.1 Antennas Overseas customers must check local regulations for compliance before ordering. The choice of a particular antenna is dictated by transmitter power consumption, the application environment, physical size constraints, governing local regulations, etc. As a rule, the higher the antenna gain, the larger it’s size and narrower the beam width (the more directional the antenna).
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual Page 19 4.3.2 Cables The length of the cable between the transmitter and the antenna will have a bearing on the output power transmitted. It is not recommended to have more than 30 feet of cable, as the cable loss will become appreciable, even with a low loss cable. If a cable must be used, we recommend a low loss cable like the LMR240 or LMR400 or equivalent. 4.3.3 Battery packs a) BAT80 – 14.
AVALON RF, INC. TX500 Series User’s Guide & Operating Manual Page 20 Warranty The Avalon RF Warranty covers Mechanical and Electrical defects for each of the components in your Avalon RF equipment. We will repair or replace the defective part at our cost during the warranty period. Cost is defined as the cost of the component(s) plus our time to install and test the replacement part. Warranty covers parts and labor. The warranty period is assumed to be 1 year, unless otherwise specified on invoice.
