Garrecht Avionik GmbH
VT-01 Transponder
Installation Manual - english -
Document:
01.0200.11E
Revision: 1.3
27
6.3. Installation VT-01 UltraCompact
The VT-01 UltraCompact is a very compact size unit with a low weight, that allows installation in small
cockpits.
General: All installation work shall be performed in accordance with the acceptable methods,
techniques and practices for aircraft alterations, inspections and repair, shown in FAA
documents AC 43.13-1B and AC 43.13-2A (see www.faa.gov to obtain this documents free of
charge in digital form).
6.3.1. Panel mounting
Determine a suitable position in the instrument panel that is in view of the pilot in command.
When choosing a position for installation, always be sure not to damage structural devices of
the airframe.
Cut a 57mm (2 ¼ inch) diameter hole with 4 x 4.1mm holes for the mounting screws (see chapter 15
for detailed locations). A minimum space of 62 mm x 62 mm behind the panel cut out is required for
clearance with adjacent instruments. A depth of 205mm is recommended to accommodate the
transponder and electrical connectors.
6.3.2. Static pressure connection
The system contains an integral alticoder. Connect the static pressure line of the aircraft to the
connector on back of the central unit.
The integral alticoder supplies data immediatly after switching on the VT-01. No warm up period is
required. For calibration of the internal alticoder, an instruction will be provided by the manufacturer to
qualified installers.
6.3.3. Wiring
Wiring electrical components shall be performed by qualified personal only to
prevent damages and hazardous situations that could result in loss of life.
All wires (except the antenna line) related to the VT-01 in single-block configuration
are connected to one SUB-D 9 pin connector on the back of the central unit.
Ensure that the Sub-D connector is fastened to the housing of the central unit correctly before
operating the unit in flight.
The following subchapters describe the different lines required for operating the transponder.
DO NOT POWER ON THE TRANSPONDER WITH THE ANTENNA
DISCONNECTED !!!
Damage to the RF unit caused by a disconnected antenna can be
determined by the manufacturer and is not covered by the manufacturers warranty.
