TX418M - UHF TX518M - 900MHz-2.15GHz TX618M - 2.15GHz-2.5GHz 70 mW Video Transmitter User's Guide & Operating Manual AV030528/1-000 REV. A1 - 23 December 2003 Prepared by Steve Jones Authored by Eli Weinstein http://www.avalonrf.com/ Avalon RF, Inc. • 344 Coogan Way • El Cajon, CA 92020 Phone: (619) 401-1969 • Fax: (619) 401-1971 • Email: sales@avalonrf.
AVALON RF, INC. TX418M/TX518M/TX618M User’s Guide & Operating Manual 1. 2. 3. 4. Page ii Table of Contents General .................................................................................................1 Figure A – TX618M Series Controls and Connectors ...........................2 Video.....................................................................................................3 Audio.....................................................................................................
AVALON RF, INC. TX418M/TX518M/TX618M User’s Guide & Operating Manual 1. Page 1 General The TX418M/TX518M/TX618M series rugged transmitters are intended for use in short range military, homeland security, mobile security, broadcasting and motion picture production. All have an RF output power of approx. 70mW. The following table details a brief matrix of the transmitters: Model Tuning range TX418M TX518M TX618M 460MHz-860MHz 900MHz-926MHz 2.4GHz-2.
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AVALON RF, INC. TX418M/TX518M/TX618M User’s Guide & Operating Manual 1.1 Page 3 Video. The video input is buffered, combined with the two audio subcarriers, then DC level restored, limited by a white level clipping circuit, preemphasized and (VSB on TX418M series) (FM onTX518M/TX618M series) modulated onto the transmitter RF carrier. Avalon RF offers the following video indices of modulation (TX518M/TX618M only): • Industry standard frequency deviation of 4MHz.
AVALON RF, INC. TX418M/TX518M/TX618M User’s Guide & Operating Manual 2. Specifications 2.1 User Interface - On/Off Switch. Page 4 The TX618M series transmitter has an on/off switch. This shuts off power to the entire transmitter. 2.2 Setup. The TX618M transmitter has four frequency select switches that select a frequency (1 of 16). The preset frequencies are defined by a label on the transmitter.
AVALON RF, INC. TX418M/TX518M/TX618M User’s Guide & Operating Manual Page 5 2.3.3 Audio 1 and Audio 2 Inputs. The audio inputs accept signals of 1Vp.p. and have an input impedance of 600 Ω (ohm). 2.3.4 RF output to antenna. a) The main RF output connector is a 50 Ω (ohm) MMCX receptacle. b) The RF output power is approx. 70mW. 2.4 Interconnecting. The interface to/from the transmitter is: a) Power/Video Input.
AVALON RF, INC. TX418M/TX518M/TX618M User’s Guide & Operating Manual 2.5 Page 6 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 connector and cable weight. b) Clip on. Avalon RF offers a clip on kit.
AVALON RF, INC. TX418M/TX518M/TX618M User’s Guide & Operating Manual 2.5.2 Mechanical Data. a) Size 2.45” x 1.24” x 0.66 (see Figure D) 62mm x 31mm x 17mm b) Weight <5.6 oz. <158 gram c) Shipping weight <32 oz.
AVALON RF, INC. TX418M/TX518M/TX618M User’s Guide & Operating Manual 2.6 Page 8 Environmental Conditions. The TX618M 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. TX418M/TX518M/TX618M User’s Guide & Operating Manual 3. Page 9 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. TX418M/TX518M/TX618M User’s Guide & Operating Manual 4. Ordering information 4.1 Base models. TX418M TX518M TX618M UHF VSB modulated, output power (OP) of 70mW 900-928MHz, FM modulated, OP of 70mW 2.4GHz-2.483GHz, FM modulated, OP of 70mW All units come with the following standard accessories: 4.1.1 Omni directional ¼ wavelength whip antenna 4.1.2 A 3-foot power cord with flying leads to connect to a customer specific battery pack. 4.1.3 User guide & operating manual (this manual). 4.
AVALON RF, INC. TX418M/TX518M/TX618M User’s Guide & Operating Manual 4.2 Page 11 Options. 4.2.1 Option 00 – European version (TX418M only). Tunes from 470MHz to 860MHz with European channel spacing. 4.2.2 Option 03 – Wideband (TX518M only) 4.2.4 Option 04 – Extended tuning range TX418M TX518M TX618M not available 900MHz-1.3GHz 2.150GHz to 2.5GHz 4.2.5 Option 05 – Extended tuning range (TX518M-2 only) Tuning range from 1.3GHz to 1.7GHz 4.2.
AVALON RF, INC. TX418M/TX518M/TX618M User’s Guide & Operating Manual 4.3 Page 12 Recommended accessories. 4.3.1 Antennas Omni-directional antennas for mobile application: Gain 0dbi 3dbi 4dbi 6dbi 8dbi UHF AX400 900MHz AX500 AX503CP AX504LS AX406CP 2.
