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Garrecht Avionik GmbH 

VT-01 Transponder 

Installation Manual - english - 

Document: 

01.0200.11E

 

Revision: 1.3 

33 

 

9.1.2. Display contrast 

 

• 

Check, if the transponder antenna has been connected to the device properly 

• 

If so, switch on the unit by pressing key 1 

• 

If the BITE (build in selft test) has been performed successfully, the system is 
ready for the next steps. 

• 

Enter the installation setup by simultaneously pressing key 1 and the push 
button of the rotary encoder.  

 

 

 
The screen shows as follows: 

 

 
 
 
 
 
 
 
 

 
 
Use the outer knob of the rotary encoder to 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 the 
rotary  encoder  and  use  the  inner  encoder  to  set 
up the desired values. 

 
 

 

9.1.3. Display illumination 

 
The next screen shown is the illumination set up 
 
 
 
 
 
 
 
 
 
 
 

 
Possible values:  
 

on 

LCD  backlight  and  button  illumination  on, 
automatic  brightness  control  by  ambient  light 
sensor 
 

off 

LCD backlight and button illumination always off.  
 
Press  the  inner  knob  of  the  rotary  encoder  and 
rotate it to set up the desired values. 

 
This menu will be shown only if the unit provides an illuminated display. 
 
 
 
 
 

illumination 
 
on

 

Password 
 
000000

 

lcd contrast 
 
140

 

Summary of Contents for VT-01

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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

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

Page 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...

Page 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...

Page 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...

Page 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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