570-2000, Rev. E, 453-2000 Handheld Programmer Operations Manual
Figure 14: Avionic Tools Screen
4.
The screen will display “Waiting for Data”, as shown in Figure 15, until a valid ELT
transmission is received.
Figure 15: Waiting for Data Screen
5.
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”.
6.
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 need to warm up.
7.
Repeat the ELT test if necessary.
8.
Select “Done” to save the message and proceed. A new message will not over-write
the old message. The message will be automatically saved to a database for later
review.
9.
Press “Clear” or the right arrow key to clear screen for next message.
6.3
Message Display
Once a valid message is received, all encoded data is displayed on the screen as shown
in Figure 16.
NOTE
: The message will remain on-screen until the “Clear” button is selected.
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