I flew the Husky with ProxAlert R5 (PCAS) and the PowerFlarm on the
glareshield about 3 inches apart. Shortly after takeoff I realized the
R5 was interfering with the PowerFlarm, causing it to display a threat
aircraft at my exact position and altitude. At first I though the PF
was not blanking or ignoring my own transponder, but turning off the
R5 eliminated the false traffic. The PF did not appear to affect the
R5. For the balance of the flight I was turning one off, then the
other in an attempt to get a semi-valid comparison.

The PowerFlarm reports ADS-B traffic long before that traffic will
show up on the PCAS. Sensitivity of the R5 has always been good, the
PowerFlarm appears to be every bit as good in PCAS mode. Unable to
test Flarm to Flarm.

bumper