® assuredcommunications™ RF-1941/ RF-1940 SERIES HF MANPACK, PORTABLE DIPOLE ANTENNA The RF-1941/RF-1940 Series are lightweight, portable dipole antennas designed for use in the 2 to 30 MHz range with a maximum power of 500 Watts. The antenna is stored on selfcontained flat spools, which form an integral part of the antenna. During operation, unwind to frequency marker and deploy; the unused portion remains on the storage spool. Each spool also contains throwing line that can be connected to masts, trees, buildings, poles, etc. The RF-1941/RF-1940 Antenna series can be connected directly to the AN/PRC-138, AN/PRC-150, or RF-5800H manpack, using the manpack’s built-in antenna coupler for ALE operation. The antenna design can be configured as a dipole, sloping dipole, sloping V, or as a vertical rhombic antenna depending on support and terminations (none are supplied). It includes a 10-meter, 50Ω coaxial cable with BNC male connectors. A BNC-to-Type N adapter is also included. The RF-1941 is completely contained in a heavy duty 6" x 12" x 3" OD bag with strap and clip points to attach to a military ruckpack. The RF-1941 is more rugged than the low cost RF-1940. Specifications for the RF-1941 / RF-1940 Series Electrical Mechanical ■ Frequency Range 2.0 to 30 MHz (RF-1941) 3.0 to 30 MHz (RF-1940) ■ RF Connector BNC, male (BNC-to-Type N Adapter included) ■ RF Coaxial Cable RG-58 (10 meters) ■ RF Power Capacity 500 Watts (2.0 MHz to 30 MHz) ■ Deployed Dimensions 74.6 m, fully extended (RF-1941) 46.4 m, fully extended (RF-1940) 34 cm x 17 cm x 7 cm, stored ■ Input Impedance 50 ohms (nominal) ■ Radiation Pattern See below ■ Weight Approximately 2.3 kg (5.0 lbs) ■ Polarization Horizontal (Dipole Configuration) ■ Color Olive Drab Green ■ VSWR <1.5:1 Features ■ Reconfigurable – Dipole – Sloping dipole* – Sloping V* – Vertical Rhombic* ■ Compact storage on custom bag (RF-1941) ■ Light weight/Small package ■ Low-cost (RF-1940) ■ Compatible with ALE when radio has tuner ■ Gain -6 to 6 dBi depending on mounting configuration and frequency Environmental ■ Temperature Operating; -25° to +55°C Storage; (-40° to 70°C) ■ Relative Humidity 0 to 100% * Termination resistors not included Radiation Patterns Over Average Ground 16 MHz 0 Frequency Selected Length 8 MHz 4 MHz 2 MHz Throwing Line Storage Spool Manpack 50Ω Coaxial Cable -90 90 Fan Dipole Configuration Not to scale Specifications are subject to change without notice. ® RF Communications Division | 1680 University Avenue | Rochester, NY USA 14610 www.harris.com 1-585-244-5830 assuredcommunications™ Copyright © 2005 Harris Corporation 8/05 DS-291A