Model HFBF-230 2.8 - 22 MHz 6 dBi Gain 


Design Features: The HFBF-230 Horizontal Polarized Butterfly Broad Band Dipole Antenna offer optimum performance, fully automatic, low VSWR operation over the HF band 2.8-22 MHz and suitable for receiving, transmitting or HF spectrum monitoring or surveillance with polarization diversity. The HFBF-230 HF butterfly antenna is completely passive type which allow to receive and transmit horizontal polarized electrical field signals. The HFBF-230 broadband butterfly antenna propagates NVIS, local, medium or long distance communications. No Antenna Tuning Unit (ATU) is required for its operation. Antenna matching circuit BALUN is part of antenna. No active circuit is involved to design this antenna. The antenna is fully passive thus ensuring many years of maintenance free life. The HF Broad Band Butterfly Antenna provides optimum performance over complete HF band, eliminating the requirement of multiple antennas, minimizing the cost and setup requirements.The butterfly antenna can be installed within 1 hour by 2 technician.

Constructions: The HFBF-230 horizontal polarized broadband butterfly antenna is designed for broad band operation for fixed stations application. The radiating element of butterfly antenna is made of either high quality copper or type 303 marine grade stainless steel wire which are ultra corrosion resistant alloy to ensure the survivability in worst environment conditions. The antenna matching circuit BALUN is designed in such way that it can be removed with simple hand tools in case of failure without dismantling the complete butterfly antenna. The butterfly antenna uses 1-5/8 EIA female connector to withstand the 3KW average power handling capacity. The HFBF-230 HF broadband butterfly antenna is completely electrically isolated from the mast. The HFBF-230 horizontal polarized butterfly antenna operates at D.C. ground with low resistance discharge path for protection against lightning and immunity to noise.

Electrical Specifications:
Frequency Range2.8 - 22 MHz
Gain6 dBi
Input Impedance50 Ohms
Radiation PatternOmni-directional
RF Power Handling Capacity3 KW
Input TerminationDIN-Female
Lightning ProtectionDirect Ground

Mechanical Specifications:
MaterialsMarine Grade Stainless Steel
Wind Rating180 Km/Hr.
Radiating Elements - MaterialStainless Steel
Gross Weight15 Kgs (antenna only)

Environmental Specifications:
Operating Temperature(-) 30 to +70 Degrees Celsius
Storage Temperature(-) 40 to +80 Degrees Celsius
Humidity0 to 95% RH