® assuredcommunications™ RF-1912 HF FAN DIPOLE ANTENNA The RF-1912 family consists of three antennas: RF-1912E (radiating elements and feedline), RF-1912T (RF-1912E with transportable masts), and RF-1912B (RF-1912E with permanent masts). The element length and height above ground has been designed to optimize take-off-angle for HF skywave propagation from NVIS to 2000 kms. The RF-1912 can also be configured as a top-loaded monopole for short-range ground wave or long-range skywave. Both antenna configurations achieve near 100% radiation efficiency because they do not contain any resistive loads. Broadband operation does require an antenna coupler. The RF-1912 family is designed for use with transceivers operating at up to 1 kW RF output power. For broadband operation, from 1.6 to 30 MHz, the RF-1912 requires an RF-382, or RF-2601Antenna Coupler and associated cables. The RF-1912E comes with 100 foot of support rope to be installed on customer-supplied masts. The RF-1912T has lightweight aluminum mast sections that are easy to assembly and disassemble for tactical operations. The RF-1912B is designed for one-time permanent installing. Stowed RF-1912E Specifications for the RF-1912 Electrical Mechanical ■ Frequency Range 1.6 to 30 MHz with RF-382 or RF-2601 Couplers ■ RF Connector Feed line terminal lugs connect directly to RF-382 or RF-2601 Coupler ■ RF Power Capacity 1000 Watts PEP or average ■ Deployed Dimensions 105 ft (32m) L, 26 ft.(7.9m)W, and 29 ft 10 in (9.09m) H ■ Input Impedance Compatible with RF-382 or RF-2601 Couplers ■ Weight RF-1912E – 7 lb (3.2 kg) RF-1912T – 135 lb (60 kg) ■ Radiation Pattern See below ■ Installation Time RF-1912E – 10 minutes for 2 people RF-1912T – 30 minutes for 2 people ■ Polarization Fan dipole configuration: horizontal for short-to-medium range skywave; top-loaded monopole configuration: vertical for ground wave or long-range skywave Features ■ Full MIL-SPEC design ■ Reconfigurable: fan dipole or top loaded monopole ■ NVIS, medium skywave, long range skywave, and ground wave ■ Kevlar guy lines for RF-1912B ■ Nylon-coated radiating elements with Kevlar extensions ■ Compact stowage on custom winder ■ VSWR In accordance with RF-382 or RF-2601 Coupler specifications ■ Gain 0 to 6 dBi depending on earth conditions and frequency Environmental ■ Temperature Operating; -40° to +55°C (-40° to +131°F) ■ Relative Humidity 0 to 100% Radiation Patterns Over Average Ground 2 MHz 16 MHz 0 4 MHz 8 MHz 8 MHz 4 MHz 16 MHz 2 MHz 90 10 90 0 -10 -20 dBi Fan Dipole Configuration 90 0 0 90 -10 -20 -30 dBi Top Loaded Monopole Configuration 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-262A