The most commonly used options are:
D: Toggles debug messages, when in receive mode signal strength as well as information about invalid
packets will be displayed. It’s normal to receive a lot of broken packages, as there always will be radio
noise and ships just barely out of reach. With some experience you can use the debug messages to
analyze and improve reception issues.
N: Keep pressed to get an idea of the current noise level. -120 to -100 dBm is normal. dAISy will only be
able to receive valid packets roughly 15 dBm above that level, consistent reception 25+ dBm above
noise.
S: If valid packages were received, this gives a summary of the signal strength at which they arrived
(min, max, average).
ESC: Resume receiving AIS messages.
Other options:
0-3: Enables auxiliary serial output of AIS messages on the TX pad on the PCB. Advanced users can
connect dAISy with other devices, like for example Bluetooth modems, by soldering a few wires. 1
provides 9600 baud output, 2 is for 38400, and 3 is for 4800 baud. 0 turns serial output off. The serial
output is also used by the optional dAISy NMEA 0183 / RS-422 adapter.
T: Enter test mode. In this mode, dAISy outputs a test message every 5 seconds. You can enter your own
message or have it output a preprogrammed AIS message. This mode is useful when you want to test
