CESSNA AIRCRAFT COMPANY FOR TRAINING USE ONLY
MODEL 152 9-7
SUPPLEMENT
EMERGENCY LOCATOR TRANSMITTER (ELT)
SECTION 1 – GENERAL
The ELT consists of a self-contained dual-frequency radio transmitter and battery power supply, and is
activated by an impact of 5G or more as may be experienced in a crash landing. The ELT emits an omni-
directional signal on the international distress frequencies of 121.5 and 243.0 MHz. (Some ELT units in
export aircraft transmit only on 121.5 MHz.) General aviation and commercial aircraft, the FAA, and CAP
monitor 121.5 MHz, and 243.0 MHz is monitored by the military. Following a crash landing, the ELT will
provide line-of-sight transmission up to 100 miles at 10,000 feet. The ELT supplied in domestic aircraft
transmits on both distress frequencies simultaneously at 75 mw rated power output for 48 continuous
hours in the temperature range of -40°F to +131°F (-40°C to +55°C). The ELT unit in export aircraft
transmits on 121.5 MHz at 25 mw rated power output for 100 continuous hours in the temperature
range of -40°F to +131°F (-40°C to +55°C).
The ELT is readily identified as a bright orange unit mounted behind the baggage compartment wall in
the tailcone. To gain access to the unit, remove the baggage compartment wall. The ELT is operated by
a control panel at the forward facing end of the unit (see figure 1.)
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