PowerFLARM Core Manual v.150 International
9
•
If higher cable lengths are required, even lower loss cables
such as LMR-400 should be considered.
•
Suitable antennas: FLARM AV-75 (part. No. ANTCEFLA and
ANTCEFLAB); available from your FLARM dealer.
•
The primary antenna (FLARM A) should have good view in-
to the direction of flight. FLARM B (if used) should be
placed to complement the field of view of FLARM A.
ADS-B
•
Suitable antennas: RAMI AV-74 Transponder/DME antenna
or similar; available from your FLARM dealer.
GPS
•
Use low-
loss 50Ω coaxial cable. Attenuation value
s at
1.57GHz are relevant.
•
The required MCX connector can be directly crimped to RG-
316 and Enviroflex (ca. 1.4dB/m). If thicker cables are re-
quired, an adapter must be used.
•
Use a low-profile aviation GPS antenna with builtin pream-
plifier, e.g. Sensor Systems S67-1575-39 or S67-1575-49;
available from your FLARM dealer.
•
Preamplifier gain minus cable attenuation must exceed
17dB.
•
The antenna must accept PowerFLARM’s 4.75V supply and
must not draw more than 200mA. DC resistance of the ca-
ble must be taken into account.
•
The antenna should be mounted horizontally with a good
sky view.
•
Operation with an existing GPS antenna and an RF splitter
may be possible provided the antenna has a high gain pre-
amplifier and cable losses are not too high. A splitter with a
DC block on one path must be used. Please contact your
dealer or FLARM if you plan using a splitter.
