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| (R) assuredcommunicationsTM RF-1937 HF TRANSPORTABLE GROUND STAKE ANTENNA for use with deployable applications The RF-1937 is a transportable, vertically erected, ground station antenna designed around the SB Series whip antennas. The maximum RF input power is rated at 1 kW. It can be used at lengths between 16 feet (4.9 m) and 32 feet (9.8 m), and requires the use of an RF-382 or RF-2601 automatic antenna coupler. The kit comes packaged in a canvas carrying bag and contains everything needed for quick deployment by one or two people. Included is a guy rope assembly for semi-permanent installations and four ground radials on reels for improved radiation performance. Designed for ground level mounting, the base mount is installed on a base stake driven into the ground. Specifications for the RF-1937 Electrical I Frequency Range 2 to 30 MHz with RF-382 or RF-2601 Antenna Coupler I RF Power Capacity 1 kW I Input Impedance Compatible with RF-382 or RF-2601 Antenna Coupler I Radiation Pattern Elevation: see Radiation Pattern below Azimuth: omnidirectional I Polarization Vertical I VSWR In accordance with RF-382 or RF-2601 Coupler specifications I Gain Full 32 ft. -1 dBi @ 4 MHz +1 dBi @ 16 MHZ +1 dBi @ 24 MHz Mechanical I RF Connector and Ground Radials Wing nuts on antenna I Dimensions Deployed: 80' W x 32' H Stowed: 6" x 6" x 54" (0.15 x 0.15 x 1.37 m) I Finish Military Green I Weight 10 lb (5 kg) I Installation Time 20 minutes, 2 people Environmental I Temperature Operating; -40 to +60C I Relative Humidity 0 to 100% I Wind (Depending on soil density) 16 ft. (4 sections) 80 mph without guys 32 ft. (8 sections) 35 mph without guys 32 ft. (8 sections) 90 mph with guys Radiation Patterns Over Average Ground 0 16 MHz 8 MHz 4 MHz 2 MHz 90 +1 90 -9 -19 dBi RF 1937 Elevation Radiation Pattern for 32 ft. (8 section) version Specifications are subject to change without notice. (R) RF Communications Division | 1680 University Avenue | Rochester, NY USA 14610 www.harris.com 1-585-244-5830 assuredcommunicationsTM (c) Copyright 2005 Harris Corporation 8/05 DS-269A |
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