Lightweight VHF whip antenna for general applications – 21-4B

Lightweight VHF whip antenna for general applications – 21-4B

The 21-4 series of antennas are a linearly polarised, monopole antenna with wide band frequency characteristics intended for general communication and homing applications. Being of semi-rigid form, they are suitable for external fitting upon helicopters

  • ✔Lightweight
  • ✔ General Purpose
  • ✔ Versatile fixing
  • ✔Wide range of bandwidth options
  • ✔ TNC and BNC options available
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Specification

118 Minimum Frequency
152 Maximum Frequency
50 Impedence
<2.5:1 Return Loss VSWR
2dBi (average) Gain
Vertical Polarization
Omnidirectional Radiation Pattern Azimuth
35 Average Power Watts
562mm high Full Dimensions LxWxH mm
558 Height Above Base Plate mm
0.14 Mass kg
BNC Female, TNC Female Connector Type
25000 Altitude ft
40 Continuous Operating Temperature Min - C
70 Continuous Operating Temperature Max C
RTCA DO-160C, Section 8, Categories L and Y. Vibration