need to accurately pinpoint downed aircraft through the use
of an Emergency Locator Transmitter (ELT) has always existed.
The increasing use of both COSPAS/SARSAT and Global Positioning
System (GPS) has highlighted the need for an ELT System with
expanded range capabilities.
Techtest 503 ELT system from HR Smith offers just that; full
frequency coverage including 121.5MHz, 243MHz and 46.025MHz
with optional inclusion of transmission of last known GPS
within high quality durable thermoplastic, the ELT units
are through coloured yellow thermoplastic for high visibility,
features of the 503 Series of ELT are the ability to have
full remote extended range operation, incorporating a multi-axis
G Swith, together with both fixed or portable ELT function
in one unit
operation allows for fast, snap release of the housing, with
simple removal of the transmitter unit for use as a man portable
Personal Locator Beacon should this be required.
and rotary wing operation
G swith for full aircraft compatibility
state G swith operation eliminates false/rogue operation
aircraft removal for man portable Personal locator
C91a and C126
Approval No. 97
ED-62 / RTCA DO-204
ED-14C / RTCA DO-160C
208 Aircraft Radio Equipment Issue 2 January 1991 Vol
1, Part 10.