INSTALLATION GUIDE
1.
Mounting location: The TA70 antenna must be mounted in a
location that will assure the best possible (360
°
at the
horizon) unobstructed view of the GPS satellite constellation
in level flight (on the top of the aircraft away from projections
such as tail surfaces or large antennas). Mounting orientation
is not critical and no additional ground plane is required if
mounted on a composite airframe.
2.
You should also try to locate the antenna in an area that will
keep the coaxial cable transmission line as short as possible.
This will assure maximum signal strength to the GPS receiver.
3.
Using the mounting template provided, drill the four required
screw holes and the single antenna connector hole.
4.
Mount the antenna using the hardware provided (as shown in
the diagram) and torque all screws to a maximum of 10 in. lb.
or 1.1 Nm.
5.
Apply a sealant (RTV is recommended) over the screw heads
and around the periphery of the antenna.
SPECIFICATION SHEET
TA70
–
External Aircraft Antenna for GPS Receivers
The TA70 is a permanently mounted external aircraft antenna,
designed for use with handheld and panel mount GPS receivers which
p5 volts DC on their antenna connector.
It is an active (amplified) antenna providing an average of 28.5 dB
gain over a passive (non-amplified) antenna.
The antenna is FAA certified to TSO-C190.
Specifications:
Frequency:
1575.42 MHz ±3 MHz
Antenna Gain:
0.75 dBic typical @ zenith
Impedance:
50 ohm nominal
VSWR:
1.2:1 typical, 1.5:1 max.
Filtering:
-25.5 dB typical @ ±50 MHz
Noise Figure:
2.5 dB maximum
Gain:
26.5 to 30.5 dB
DC Power Requirement:
4.5 to 14.4 VDC
40 mA typical
Temperature:
-55
°
C to +70
°
C
Connector
TNC Female (plug not included)
