Y1-03-0273 Rev. D A3-06-2825 Handheld Test Set Operations Manual
Company Confidential Page 15
Figure 5: ETS Main Screen View
The reader is now ready to receive and decode the message. Select “measure” from
“Avionic Tools” screen as in Figure 6. The screen will display “Waiting for Data” as
shown in Figure 7 until a valid ELT transmission is received. Perform a “Self-Test” of the
ELT by turning the ELT local or remote switch from “OFF/ARMED” to “ON” for no more
than 3 sweeps of the 121.5/243 MHz signal and then switch back to “OFF/ARMED”. If
the received data is invalid, then “Message Error!” will be displayed. This may indicate
excessive distance from the ELT antenna if testing externally. 0-30 feet distance from
the ELT antenna is recommended, although distances up to 50 feet are possible (as
allowed). The ELT internal 406 MHz oscillator may also need to warm-up. Repeat the
ELT test if necessary.
Figure 6: Software Screen View
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