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Garrecht Avionik GmbH 

VT-01 Transponder 

Installation Manual - english - 

Document: 

01.0200.11E

 

Revision: 1.3 

 

5.Technical data and specifications 

 

5.1.General 

Technical characteristics 

Data 

 

Mechanical 

VT-01 

Dimensions 
 
Mounting 
 
Weights 

 

VT-01 UltraCompact 

 

Dimensions 
 
Mounting 
 
Weight 

 

 

 
 
Steering unit :65x65x34,5 mm (w/o. connectors) 
Central unit: 65x65x128 mm (w/o. connectors) 
 
57 mm panel mount 
 
Steering unit: 0,21 kg 
Central unit: 0,61 kg 
 
 
61,5 x 61,5 x 170mm 
 
57 mm panel mount 
 
0,57 kg 
 
 

 

Environmental 

Max. Altitude 
 
Temperature 
Cooling 
Vibration  
Shock 

 

 
 
50.000 ft (internal alticoder limited to 40.000ft) 
(see also limitiations chap. 5.6) 
-20°C - +55°C 
passive, no auxiliary cooling required 
DO160D Cat. S, Curve M 
Operational: 6g, crash safety: 20g 
 

 

Electrical 

Voltage (nom.): 
Voltage (operational) 
 
Current (nom.)  
@ 13,8 V and 1200 A/C replies/sec. 
 
 
 
 
Standby (sqitters active) 
 
 
 
 
 
RF-power @ antenna 
 
 
 
 
 
Replyrate: 
 
 
Output Impedance 
 
max. VSWR 

 

 
 
13,8 V DC 
9 to 32 V DC 
 
VT-0102-()-()-()-070 
VT-0104-070: 0,35 A 
 
VT-0102-()-()-()-125 
VT-0104-125: 0,45 A 
 
VT-0102-()-()-()-070 
VT-0104-070: 0,16 A 
 
VT-0102-()-()-()-125 
VT-0104-125: 0,17 A 
 
VT-0102-()-()-()-070 
VT-0104-070: > 70 Wp 
 
VT-0102-()-()-()-125 
VT-0104-125: > 125 Wp 
 
min. 1200/s Mode-A/C 
min. 50/s Mode-S 
 
50 Ohms 
 
1,5:1 

Содержание VT-01

Страница 1: ...Garrecht Avionik GmbH VT 01 Transponder Installation Manual english Document 01 0200 11E Revision 1 3 1 VT 01 Secondary Surveillance Radar Transponder Mode S Installation Manual...

Страница 2: ...his page in front of this document Date Revision Page s Description of Change Inserted by 11 08 05 1 0 all released JG 27 09 05 1 1 all Minor modifications in wording after review JG 12 01 06 1 2 all...

Страница 3: ...9 Telecommunication specifications 13 5 10 Logic of on Ground interface 13 5 11 CAN Bus interface 13 6 Aircraft installation 14 6 1 Installation VT 01 single block 14 6 1 1 Assembling the steering un...

Страница 4: ...Mode 34 9 2 4 Aircraft data 35 10 Determining installed equipment performance 38 10 1 Checking equipment installation 38 10 2 Equipment performance 38 10 3 Flight test procedures 40 10 3 1 General 40...

Страница 5: ...s product or other property Important note Indicates important or usefull information It is strongly recommended to read understand and follow the statement 3 Unpacking and part identification 3 1 VT...

Страница 6: ...2 VT 01UltraCompact The VT 01 UltraCompact transponder system is supplied with the following P N VT 0104 070 System unit or VT 0104 070 P N VT 0103 2 Mounting kit wiring harness without installation c...

Страница 7: ...dent mode for 18 seconds Use this function only when the ATC requires to sqawk ident 4 3 Mode key Key 3 selects the following modes SBY Standby System is switched on no replies or squitters will be se...

Страница 8: ...Environmental Max Altitude Temperature Cooling Vibration Shock 50 000 ft internal alticoder limited to 40 000ft see also limitiations chap 5 6 20 C 55 C passive no auxiliary cooling required DO160D Ca...

Страница 9: ...ion Suppression interface The system provides an suppression interface to prevent interference with other instruments installed in the same aircraft such as DME Impedances DC 0 4 V to 30 V 7 2 kOhms D...

Страница 10: ...sing system unit VT 0104 070 Equal to FAA TSO C112 Class 2B1 020 010 5 6 Limitations 1 To reach the required minimum RF peak power the use of an antenna cable with a total loss of less or equal 2 5 dB...

Страница 11: ...ure Variation 5 0 B 5 C minute Humidity 6 0 A Shock 7 0 B 6 G operational shocks 20 G crash safety Vibration 8 0 S Vibration curve M Explosion Profness 9 0 X Water Profness 10 0 X Fluids Susceptibilit...

Страница 12: ...ty 6 0 A Shock 7 0 B 6 G operational shocks 20 G crash safety Vibration 8 0 U2 R Vibration curve F F1 Vibration curve B B1 Explosion Profness 9 0 X Water Profness 10 0 X Fluids Susceptibilities 11 0 X...

Страница 13: ...which should be connected to your aircraft installation if an adequate signal will be provided The following table shows the system behaviour for different configurations and input at the interface on...

Страница 14: ...red in the steering unit which always remains in an aircraft General All installation work shall be performed in accordance with the acceptable methods techniques and practices for aircraft alteration...

Страница 15: ...trument 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 inch diameter hole with 4 x...

Страница 16: ...d 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...

Страница 17: ...ale connector Pin Function Additional Information 1 9V 28V DC Connect to aircraft primary power source 2 mutual suppression Connect to DME suppression bus use shielded line 3 RS 232 RX For ADS B Data...

Страница 18: ...lies only to discretely addressed Mode S interrogations if the on ground signal is present The permament emission of squitters will not be effected Refer to chapter 5 10 for logic table of this interf...

Страница 19: ...two block system the following steps need to be performed Unfasten the 4 Screws 3 and remove the steering unit 1 from the central unit 2 Fasten a shoulder washer 5 with screws 4 on each side of the ce...

Страница 20: ...M4x5 screws 6 2 2 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 s...

Страница 21: ...to the housing of the central unit or steering unit correctly before operating the unit in flight The following subchapters describe the different lines required for operating the transponder DO NOT...

Страница 22: ...d from back of SUB D 9 female connector Pin Function Additional Information 1 10 V to 28V DC Connect to aircraft primary power source 2 Suppression Connect to DME suppression bus use shielded line 3 R...

Страница 23: ...ting kit Perform a 1 1 connection to the craddle connector Power GND Suppression On ground RS 232 for ADS B CAN Bus Back of steering unit Wire the female SUB D 9 plug to be connected to CN2 back of th...

Страница 24: ...to this pin The transponder replies only to discretely addressed Mode S interrogations if the on ground signal is present The permament emission of squitters will not be effected Refer to chapter 5 10...

Страница 25: ...rting the central unit into the cradle Insert the central unit with the antenna connector first in to the cradle The shoulder washer will slide into the slots in the left and right wall of the cradle...

Страница 26: ...6 2 5 1 1 Removal of the central unit form the cradle Press the spring lock down and pull the central unit into the direction of the spring lock When the shoulder washer contact the wall of the slots...

Страница 27: ...ommended 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 con...

Страница 28: ...owing table viewed from the back of the SUB D 9 female connector Pin Function Additional Information 1 9V 28V DC Connect to aircraft primary power source 2 mutual suppression Connect to DME suppressio...

Страница 29: ...lies only to discretely addressed Mode S interrogations if the on ground signal is present The permament emission of squitters will not be effected Refer to chapter 5 10 for logic table of this interf...

Страница 30: ...ound is extremely important If this is not done properly antenna performance characteristics may become distorted and nulls may appear in the antenna radiation pattern This in turn may cause erratic n...

Страница 31: ...0102 125 or system unit P N VT 0104 125 Cable Type Maximum length m Maximum length ft RG 58 C U 3 6 11 5 RG 213 6 0 19 6 RG 400 3 2 10 0 AIRCELL 7 6 0 19 6 not certified for aircraft installation Cla...

Страница 32: ...he same aircraft The steering unit carries the flight id So no changes are required when moving the central unit to another aircraft Follow these steps to set the flight id aircraft registration Set t...

Страница 33: ...select the desired submenu Sets the basic value for the LCD contrast Additionally the system provides an automatic temperature dependent contrast control To modify the value press the inner button of...

Страница 34: ...he first character of the menu entry An entered password remains active until switching off and on the unit 9 2 1 Illumination The first submenu shown in the password protected area is the illuminatio...

Страница 35: ...1 can be selected 9 2 4 1 Aircraft address A proper installation and operation of a Mode S transponder requires the installer to set a unique 24 bit Mode S Address the aircraft maximum speed as well...

Страница 36: ...installed in larger aircraft Consult your aircraft s flight manual to determine the required information To enter the desired value follow these steps Press the inner knob of the double shaft rotary e...

Страница 37: ...rame the system broadcasts an airborne message permanently To finish the edit mode press the push button of the rotary encoder If you do not know if an external on ground switch has been connected or...

Страница 38: ...ight conditions for which the equipment is required 10 2 Equipment performance passed Reply Frequency Interrogate the installed transponder and verify that the reply frequency is 1090 MHz 1 MHz for bo...

Страница 39: ...d condition e g a weight on wheels or struct switch is available Verify that the equipment correctly reports the on the ground condition in the CA FS and VS fields Verify that the equipment correctly...

Страница 40: ...of the new line does not exceed the loss of the old antenna line 10 3 2 Flight tests instructions For determining performance in flight all tests on ground as shown in 10 1 need to be performed succes...

Страница 41: ...Garrecht Avionik GmbH VT 01 Transponder Installation Manual english Document 01 0200 11E Revision 1 3 41 Appendix A Dimensions VT 01 Steering unit and System unit...

Страница 42: ...Garrecht Avionik GmbH VT 01 Transponder Installation Manual english Document 01 0200 11E Revision 1 3 42 VT 01 Mounting kit with craddle...

Страница 43: ...Garrecht Avionik GmbH VT 01 Transponder Installation Manual english Document 01 0200 11E Revision 1 3 43 VT 01 UltraCompact...

Страница 44: ...Garrecht Avionik GmbH VT 01 Transponder Installation Manual english Document 01 0200 11E Revision 1 3 44 Appendix B Template for panel cutout...

Страница 45: ...Garrecht Avionik GmbH VT 01 Transponder Installation Manual english Document 01 0200 11E Revision 1 3 45 Appendix C Assembling BNC TNC plugs for AIRCELL 7 coaxial cable...

Страница 46: ...g follow these steps Remove the outer insulation of the interconnection cable 65mm 2 5 Split the silver plated copper braid into two parts Leave about 15mm 1 6 of the braid Twist one part of the braid...

Страница 47: ...l english Document 01 0200 11E Revision 1 3 47 Flip the conductive aluminium tape braid which has former been flipped over the outer insulation Install the hood cable clamps as shown in this and the f...

Страница 48: ...200 11E Revision 1 3 48 Insert the cable with the cable clamp into the hood as shown Cut all pairs and the wire made of the braid to appropriate length for installation of a Sub D Connector not shown...

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