Aircraft Antennas

McMurdo Aviation Antennas

A choice of 406/121.5MHz antennas is available to suit any sub-sonic aircraft. For most GA applications, the AV200 whip antenna is the logical choice, combining high performance with entry-level pricing. Most helicopters will be better suited to the AV300 rod antenna, as will aircraft with a VNE in excess of 250 knots. For all aircraft with a VNE in excess of 350 knots we recommend the ANT500 blade antenna.

The McMurdo Kannad Integra ELT has a built-in 406MHz antenna. Provided the unit is mounted in a position where it can see at least a part of the sky, either in a glassfibre fuselage or under a canopy, an external 406MHz antenna should not be needed, though national regulations may still require one to be fitted. Check with your installer for the rules in your country.

ANT500 Blade Antenna

  • The ANT500 is used primarily by airliners, but can be fitted to any sub-sonic aircraft.
  • Triple frequency 121.5/243/406MHz
  • Fully compatible with the range of KANNAD 406 ELTs (except 406 AF-COMPACT)
  • T6 Aluminium + glass fibre
  • Skydrol resistant enamel Finish
  • BNC connector
  • VSWR <2.3
  • Max. Power 5W CW,
  • Vertical polarisation,
  • Weight: 730g,
  • Height: 249mm

AV300 Rod Antenna

  • A glassfibre rod antenna suitable for aircraft speeds up to 350kts. Also suited to helicopter installation where vibration can be an issue for whip antennas.
  • Triple frequency 121.5/243/406MHz
  • Metallic base plate with 3 fixing holes
  • BNC connector
  • VSWR:
  • . 2.0:1 or better@121.5 MHz
  • . 2.0:1 or better@243 MHz
  • . 1.5:1 or better@406 MHz
  • Max. Power 10W CW,
  • Efficiency > 85%,
  • Weight: 255g,
  • Height: 355mm

AV200 White Antenna

  • A whip antenna suitable for aircraft speeds up to 250kts
  • Dual frequency 121.5/406MHz
  • Can easily be installed through a single hole (Ø 13 mm, 0.515 in.) in the aircraft skin
  • Female BNC connector
  • Impedance 50 ohms
  • VSWR:
  • . 2.0:1 or better@121.5 MHz
  • . 1.5:1 or better@406 MHz
  • Weight: 85g
  • Height: 609.6mm

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