FLARM PowerFLARM Core Installation Manual page 15

FLARM and PCAS/ADS-B antenna connectors (SMA)
US/Australia devices (part No. FLAPFCnnA and FLAPFDnnA): FLARM
A and B are reverse polarity female SMA connectors with a pin as
center conductor. ADS-B is a standard female SMA connector with a
female center sleeve.
European devices (part No. FLAPFCnnE and FLAPFDnnE): FLARM A
and B ports are standard female SMA connectors with a female
centre sleeve. ADS-B is a reverse polarity female SM connector with
a pin as a centre conductor.
Never swap the FLARM and PCAS/ADS-B antennas. Doing so
may cause permanent mechanical damage to the device and
The difference between US/Australia and European devices is due
will void warranty.
to regulatory requirements.
Both FLARM and the ADS-B antennas must be mounted vertically
(i.e., one tip facing up, the other one down).
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PowerFLARM Core Manual v.150 International