39
UAV-1001006-001
ECCN 7A994
Appendix C-4 Apollo SL70 App Note
The Apollo SL70 outputs Altitude, Mode, Squawk and Mode C code over RS232. The
configured baud rate needs to be determined and programmed into the echo app.
Determine the baud rate of the serial port as follows:
The SL70 has a built-in setup mode to simplify the checkout. To operate the SL70 in the
setup mode, hold down the “IDENT” and “ALT” buttons while switching on the power. To
return to normal operation, switch the power off, then back on.
RS-232 Baud Rate Determination.
To view the baud rate: In test mode, rotate the LARGE knob to the “SL70 CONF” (SL70
Configuration) page, then rotate the SMALL knob to the “BAUD” (baud rate) page. The
baud rates available are 1200, 2400, 4800, 9600, and 19200. The TX setting must be
configured to EXT for squawk to pass to the echoUAT.
Equipment
Setup
Source
Control
Source
GPS
Source
COM1
Rate
COM1
Data
COM1
Phy
COM1
Protocol
SL70
APP
Panel
COM2
9600
81N
RS232
GDL
Summary of Contents for echo
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