ebc deft-1

Quality compatibility are guaranteed with EBC’s accessories and replacement components.

Tail/aft mounted ELT. Made with either the long side or short side facing forward. Transmits on both 121.5 & 243.0MHz.

Product Manual

The DEFT-1 ELT is a tail mounted automatically activated emergency locator transmitter. The DEFT-1 may be manually activated via the unit OFF-ARM-ON switch and/or via the optional remote switch for testing or when an emergency is eminent. When activated, the DEFT-1 will radiate an omnidirectional RF signal on the international distress frequencies of 121.5 MHz and 243.0 MHz.

The DEFT-1 is for aviation emergency use only. Designed, manufactured and tested under the strictest quality control procedures it is warranted for two years. The DEFT-1 ELT can be purchased alone or with accessories, such as antennas or cabling. Because this ELT is mounted in the tail of the plane cabling and external antennas are needed. This ELT is a 12-volt system and must use only a 12-volt battery pack in order to function properly. It can be made up with the short side “forward” (“B” model) or mounted with the long side “forward” (“A” model).

This ELT is FCC Part 87 Type Accepted.


  • Yellow molded plastic case
  • Recessed 3-position Toggle Switch
  • Size: 9.5″H x 3.2″W x 2.8″D
  • Weight: 2.64 pounds

Accessories that can be purchased for the DEFT-1 or SHARC-7 ELTs:

  • Matched Coax Cable, 44″, 75″ or 140″
  • Portable Whip Antenna for both
  • Collapsible Antenna Kit
  • 19″ External Antenna (dual frequency)
  • Mounting Tray
  • 12-Volt Lithium Replacement Battery Packs (cluster)


Range – Satellite: 1200+ miles
Range – Search: Aircraft Line of Sight
Operating Life: 200 hours or more @ 21˚C
Operating Temperature: -20˚C to +55˚C
Transmit Frequency: Both 121.5 MHz and 243.0 MHz
Frequency Stability: +/- 0.005%
Inertia Operating Characteristics: 5g +2/-0 for 11 +5/-0 milliseconds
Waterproof: Complete submersion in salt water up to 24 hrs.; ELT Floats
Modulation: Swept 700 Hz (minimum from 1600 to 300 Hz at 2-3 Hz)
Peak Effective Radiated Power: 160 mW at start of transmission, not less than 75 mW after 50 hours of continuous operation
Radiation: Omnidirectional


*Disclaimer: Distress signals on 121.5 or 243.0 Mhz are legal but in 2009 processing of the signals by Search and Rescue personnel was discontinued.