Model E-04 Programming Overview
The ACK programming process itself is quite simple and may be accomplished
in a matter of minutes however programming the Model E-04 121.5/406 MHz ELT
requires a basic understanding of the COSPAS/SARSAT coding protocols and
the requirements of various countries throughout the world and their specific
requirements.
COSPAS/SARSAT provides for a number of programming protocols the Model
E-04 used standard location ELT protocols. The standard location protocol
provides the most accurate GPS location coordinates to the authorities
responsible for search and rescue.
There are three standard location protocols allocated for ELT’s. The Model E-04
has the capability to be programmed for each of these protocols.
Standard Location Serial Number Protocol
All Model E-04 ELT’s are factory programmed with this protocol and have USA
(country code 366) as the country code. This protocol uniquely identifies the ELT
by the manufacturers Type Acceptance Number assigned to the manufacturer by
COSPAS and its COSPAS serial number. These numbers are factory
programmed and may not be changed and will remain the same throughout the
life of the ELT. The only change allowed to the programming in this protocol is
the country code which indicates which country the ELT is registered. This is the
most simplified form of programming and we recommend using it whenever it is
allowed.
Standard Location 24-Bit Address Protocol
This protocol uses the aircraft 24-Bit IACO address to uniquely identify the ELT.
This code is commonly referred to as the Mode S Code. Most countries have a
civil aircraft registration data base which allows you to enter a aircraft tail
number and find the IACO or Mode S code. Most countries use the HEX format
for this code however some use Binary or other formats. The 24-Bit
programming instructions that follow will further elaborate on this.
Standard Location Operator Designator and Serial number Protocol
This protocol uses the aircraft fleet operators 2 or 3 character designator as
assigned by IATA or IACO along with the operators requested serial number to
uniquely identify the ELT. The operator should provide the designator code and
the serial number for each ELT to be programmed.
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