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Emergency Locator Transmitters (ELTs)

ACK Technologies, Inc. | ACR Electronics, Inc. | Artex Aircraft Supplies, Inc.

This page includes several options in ELTs.  They are a great way to increase safety.  Emergency Locator Transmitters (ELTs) are used to help rescue crews find downed aircraft - increasing the likelihood of survival for aircraft occupants - especially in remote areas.

The original ELTs introduced in 1973 were manufactured to the specifications of FAA TSO-C91. In 1985, TSO-C91A was introduced to provide improved performance and reliability. Today, C91 units are no longer allowed in new installations. These first and second-generation units broadcast an analog signal on 121.5 and 243.0 MHz.  The latest technology utilizes a frequency of 406 MHz.  In November of 2000 the International Corpas-Sarsat Program announced that it plans to cease the processing of distress signals from 121.5 and 243 MHz beacons on February 1st, 2009.  Unfortunately, 406 ELTs are quite a bit more expensive than 121.5 ELTs.  Cospas-SARSAT is an international organization representing many governments round the world in the management of the international distress beacon network. The USA, Australia along with many other countries are signatures and/or active parties to this organization.

For details see the links below.  

One Glider Pilot's ELT Installation
The link below shows how one glider pilot (Jim Phoenex) mounted an AmeriKing AK-450 ELT in his sailplane.  He did an excellent job of documenting it.  Well done Jim!

Click on link to see details

Click on image to see details


ACK Technologies, Inc. ELTs, 121.5 & 406.028 MHz
ACR Electronics, Inc. Personal ELTs, 121.5 & 406.028 MHz
Artex Aircraft Supplies, Inc. ELTs, 121.5 & 406.028 MHz
ELT Antenna, Conformal

Cumulus Soaring, Inc.
Paul E. Remde

8661 Connelly Place
Savage, Minnesota 55378

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