TRIG TA17 VHF Com Antenna Installation Guide
- June 2, 2024
- TRIG
Table of Contents
TA17
INSTALLATION GUIDE
02460-00 AA
TA17 VHF Com Antenna
TRIG WARRANTY
Trig Avionics warranty runs for a two-year period, starting from the date of
installation.
This warranty covers repair and/or replacement at our option, of any parts
found to be defective, provided such defects in our opinion are due to faulty
material or workmanship and are not caused by tampering, abuse, or normal
wear.
Our warranty service is provided FCA our location or our other associated Trig
Service Centres.
Trig Avionics will not accept or pay for any charges for warranty work
performed outside our factory without prior written consent.
This warranty applies only to products in normal use. It does not apply to
units or circuit boards defective due to improper installation, physical
damage, tampering, lightning or other electrical discharge, units with altered
serial numbers, or units repaired by unauthorized persons or in violation of
Trig Avionics service procedures.
Trig Avionics assumes no responsibility for any consequential losses of any
nature with respect to any products or services sold, rendered, or delivered.
Out of Warranty Repairs
Trig provides product support beyond the warranty period of two years.
After this period, any avionics requiring repairs should be returned to one of
our Approved Trig Dealers. If a repair is necessary this will be charged at a
standard rate, irrespective of the nature of the fault. Trig guarantees to
repair or replace a product even if the cost of the repair exceeds our
standard charge. If you wish to access our out of warranty support, then
please contact your Approved Trig Dealer or Trig Support for further
information.
INSTALLATION GUIDE
- The antenna should be located at least 0.6 m (2 ft) away from other antennas and reflective surfaces on the airframe (e.g., vertical stabilizer, landing gear, etc.). A good electrical connection must exist between the antenna mounting hardware and the metal frame or skin of the aircraft.
- Composite or Wood Aircraft – Create a “ground plane” on the inside of the aircraft skin by preparing two 1.2 m (48”) long, light gauge copper wires, perpendicular to each other and intersecting at their mid-point (forming an X). Strip away insulation at this intersection if using insulated wire. Locate this on the inside of the aircraft skin where the antenna will be mounted externally. Run the wires forward, aft and side to side along the inside wall and secure in place. Attach the (X) intersecting point to one of the antenna’s mounting bolts, making a good electrical connection. This is similar to a communications antenna you would see at a ground installation; a vertical radiator with four ground plane “radials” equally spaced around the base.
- Using the template provided, drill four mounting holes and one hole for the connector. The template is not symmetrical; note the ‘front’ and ‘rear’ on the template.
- Mount the antenna by placing the rubber pad provided between the antenna base and aircraft skin, and the back-up plate provided inside the aircraft. Insert hardware provided as shown below and tighten all mounting screws securely to provide a good electrical contact. The antenna must be properly grounded by means of the countersunk washers biting through the painted surface under the mounting screw heads.
- Using RG-400 or similar 50 ohm coax cable (not supplied), attach a BNC connector to one end. The other end of the cable must have a connector attached to match the connector on the radio.
- Place the cable with the connectors attached between the antenna and the radio. Test the antenna by connecting an in-line wattmeter between the transmitter and the antenna. VSWR should be 3.0 to 1.0 or better for satisfactory operation.
SPECIFICATIONS
TA17 – VHF Com Antenna – angled
The TA17 is a general aviation antenna designed specifically for mounting to
the underside of an aircraft, providing an excellent radiation pattern for
air-to-ground communications. It has a 4-bolt mounting base and is low in
profile.
The antenna is designed to operate at speeds up to 350 mph and altitudes up to
50,000 ft. It has a drag force of 0.66 lb @ 250 mph.
The TA17 is certified to FAA TSO-C37d and TSO-C38d.
| Frequency: | 118 MHz – 137 MHz |
|---|---|
| Impedance: | 50 ohm nominal |
| VSWR: | 3:1 maximum |
| Polarization: | Vertical |
| Pattern: | Omni-Directional |
| Connector: | BNC female |
| RF Power capacity | 30 W |
| Max. height/weight | 228 mm (9.0”) / 226 g (8 oz) |
Trig Avionics
Hardwareweg 3
3821 BL Amersfoort
Netherlands
Thank you for purchasing a Trig TA17 VHF Com antenna.
This pack contains installation information and support and warranty
information.
All our avionics are thoroughly tested prior to dispatch and are designed to
provide years of trouble free service. To access technical support for your
Trig Avionics product you should first contact your Approved Trig Dealer.
If you have any further technical questions, then please access your closest
Trig Service Centre through the support section of our website. www.trig-
avionics.com/support/
Thanks,
The Trig Team
[email protected]