S7D Rear Seat Repeater

S7D Rear Seat Repeater

Our Price:  £515.00(Inc. 20% VAT)(£429.17 Exc. VAT)

Brand:  LXNAV

S7 Two seat setup


The S7 has a rear seat repeater (S7D). The second unit is more than just a repeater display; it has all of the same functionality as the main unit. Front and back units are connected together with a CAN Bus cable carrying both data and power. One of the great features of the S7 is its connectivity for a PDA or Oudie including power and data from the main unit. You can also drive a second rear seat PDA or Oudie using a CAN2PDA box. This small box connects into the CAN Bus between the front and rear S7D and provides data and power to the second PDA or Oudie. Parameter changes from PDA to and from the S7 vario are possible such as MacCready, QNH etc.


  • Extremely bright 2” (5 cm) color display - readable in all sunlight conditions with adjustable backlight
  • Rotary switch with push button is used to setup all the parameters
  • GPS input with two-way communication in standard IGC form (RJ11 connector)
  • PDA input with two-way communication and 5V power supply for PDA(RJ45 connector)
  • Integrated g-meter
  • 100Hz sampling rate for very fast response
  • TE compensation can be selected to use either pneumatic TE probe or electronic compensation
  • Pre-loaded polar database for almost all gliders
  • Multi language user interface (10 languages: English, German, Spanish, Finnish, Slovenian, Czech, Dutch, French, Italian, Polish)
  • Thermal assistant
  • Built in Voice module
  • Digital Equalizer for better vario sound performance
  • Integrated logbook
  • Flarm clock screen with acoustic warning when connected to FLARM device
  • Much additional information can be displayed - such as average, thermal vario, netto, time, speed…
  • Many custom audio settings
  • Speed to fly indication
  • Several useful variometer readings can all be displayed on the same vario scale: Instantaneous Vario (outer red pointer), Average Vario (red diamond), MacCready Setting (Blue arrowhead), Thermal Average (Green “T”) making it easy to compare the achieved average and thermal climb rates with the MacCready setting.
  • Configurable serial interfaces for GPS and PDA up to 1Mbit
  • Direct communication between PDA nad Flight recorder (for flight declaration)
  • Supports Flarm unit by latest flarm specification 6.0 


  • ARM processor
  • Mechanical needle driven by stepper motor
  • QVGA (320*240pixels) sunlight readable display
  • Digital temperature compensated pressure sensors for altitude and airspeed
  • 3 axis digital +-6g accelerometer 
  • Smooth audio output


  • 16 bit color display
  • 2” (5cm) screen
  • 320 by 240 pixel resolution


  • GPS port input/output on RS232 level (standard IGC 6 pin connector RJ11)
  • PDA port input/output on RS232 or TTL level for PDA/PNA devices with 5V power supply (8 pin RJ 45, 5V output max 1A)
  • audio output
  • 1Mbit CANbus for connection to S7D repeater
  • Speed command and Vario priority input
  • Flarm warning indication
  • Rotary knob with push function


  • Power input 10-16 V DC
  • Consumption of LXNAV S7 at 12 V:
    • 120 mA - minimum brightness without audio.
    • 180 mA - maximum brightness without audio.
  • Consumption of LXNAV S7D at 12 V:
    • 90mA - maximum brightness


  • LXNAV S7D rear seat device
  • LXNAV Nano
  • Oudie
  • Bluetooth
  • Nano


  • Standard 57mm (21") hole
  • 61mm x 61mm x 95mm (exclusive connector)
  • Weight: ~330g