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| (R) assuredcommunicationsTM RF-1944-AT020 20 WATT MANPACK 20 WATT MANPACK BROADBAND INVERTED VEE HF ANTENNA The RF-1944-AT020 antenna is a lightweight, manportable broadband dipole antenna that provides radiation patterns ideal for HF skywave communications from 0 to 500 miles. The rugged, yet simple design allows quick installation into its primary Inverted Vee configuration. The termination loads provide instantaneous bandwidth performance over the entire 1.6 to 30 MHz frequency range. The RF-1944-AT020 antenna is an excellent choice when operating with frequency agile waveforms such as ALE and frequency hopping. The antenna does not require tuning by the transceiver antenna coupler. The RF-1944-AT020 is used for up to 20 watts and weights less than four pounds (1.8 kg). The antenna is comprised of a balun, two radiating elements with integral terminating loads, two ground stakes, a coaxial cable, a weighted throwing line, and a carrying bag. The coaxial cable has male BNC connectors for direct attachment to the balun. The RF-1944 AT020 antenna does not include a mast. Specifications for the RF-1944-AT020 Electrical I Frequency Range 1.6 to 30 MHz I RF Power Capacity 20 Watts PEP and average I Input Impedance 50 ohms (nominal) I Radiation Pattern See plot below I Polarization Primarily horizontal I VSWR See plot below I Gain -16 dBi at 2 MHz -2 dBi at 30 MHz Mechanical I RF Connector BNC, male I RF Coaxial Cable RG-174 (10 meters) I Deployed Dimensions 196 ft (60 meters) I Stowed Size 12 Hx 4 W x 3 D inches 30.5 W x 10 H x 7.5 D cm I Weight 3 lbs. 10 oz. (1.6kg) I Color OD finish / Black I Setup time 10 minutes for one person Environmental I Temperature Operating; -40 to 55C Storage; -50 to 71C I Relative Humidity 0 to 100% Features I I I I I Broadband operation (instantaneous) Lightweight Small 3-piece package that can be stowed in the ruck-sack Robust design Encased terminations directly attached to radiating element Typical RF-1944 VSWR and Impedance Plots 3.5 3.0 VSWR 2.5 2.0 1.5 1.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 -0.5 -1 4 MHz Balun Radiating Element Halyard Rope Radiating Element Coaxial Winder Stake Cable Winder 196 ft (60-m) Maxium Distance Winder Stake 1 0.5 0.2 0 -0.2 -2 0 0.2 0.5 1 2 2 5 -5 Frequency (MHz) 8 MHz Balun 16 MHz Terminating Load Terminating Load 24 MHz RF-1944-AT020 (12006-1802-01) Inverted Vee Broadband Antenna, 2-30 MHz, 20-Watts Specifications are subject to change without notice. (R) RF-1944 Radiation Patterns for 4, 8, 16 and 24 MHz RF Communications Division | 1680 University Avenue | Rochester, NY USA 14610 www.harris.com 1-585-244-5830 assuredcommunicationsTM (c) Copyright 2006 Harris Corporation 09/06 DS-351A |
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