On May 4, 7:14*am, John Carlyle wrote:
Does anyone know the PowerFLARM transponder ADS-B and PCAS default alert size? This would be analogous to the Zaon MRX settings, like 5 mile radius with an altitude of +/- 2000 feet, inside of which it sounds a warning. I haven’t found a way to set the alert size in PowerFLARM, just the maximum range and maximum vertical range.


Dataport specification for sentence PFLAA may be worth a read. For
PowerFLARM core the warnings will, I assume, depend on what the
display system does with the available data.

The definition of PFLAA includes "PFLAA sentences are limited to other
aircraft with a horizontal distance of less than the configured
horizontal range (default is 3km) and a vertical separation of less
than 500m. Non-moving aircraft are suppressed." also included in
PFLAA (with yellow highlight) "Non-directional targets (transponder
mode C/S; protocol version 6 and higher) are only output as PFLAA
sentences."

The definition for PFLAU includes (with yellow highlight) "Only
directional targets (i.e., with a known relative bearing) are output
as PFLAU sentences."

Based on a quick read I assume that the alert volume is the same for
all target signal types and that only the range can be user defined.

Andy