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HomeAvionics & InstrumentsAltitude EncodersACK Technologies A-30.9 Altitude Encoder - RS232 for GPS and TAWS systems.
ACK Technologies A-30.9 Altitude Encoder - RS232 for GPS and TAWS systems.
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ACK Technologies A-30.9 Altitude Encoder - RS232 for GPS and TAWS systems.

Part#: A30-9
Our Price: $328.39
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This encoder by ACK enables the addition of Mode C Capability to your aircraft in a cost effective manner. It uses the latest solid state electronics for high reliability. Installation is quick and easy and is compatible with most transponders in use today. Includes a quick-release mounting tray, 4 foot color-coded wiring harness, static line, fittings, and an installation manual with transponder pin-out diagrams.

High Quality Construction

  • Gold Plated Connectors
  • Diecast Aluminium Chassis
  • Anodized

    Product Details
    UOM : Each
    Shipping Weight : 1.4 pounds
    Manufacturer P/N : A30.9
    ECCN : 7A994
    Schedule B Code : 9014.20.6000
    Disclaimer: While reasonable efforts have been made to ensure all information on this website is accurate, and Styles Logistics, Inc. do not assume responsibility for any errors or omissions. All specifications, illustrations, data and prices are subject to change without notice.


  • Quick Release Mounting Tray

  • 4 Foot Harness

  • 4 Foot Static Line

  • Installation Manual

  • Three Year Guarantee
  • Specifications

    Detailed Specifications

  • Approvals: FAA TSO C-88a

  • German LBA 10.221/4

  • Range: MOD 4 950 to 30,750 feet /w gray code Output

  • MOD 8 950 to 42,000 feet /w 2x RS232 Outputs

  • Accuracy: Typical +- 20 feet

  • Maximum +- 50 feet

  • Size: L 6 W 2.65 H 1.3

  • Weight: 5.1 oz (144 grams)

  • Operating voltage: 10 to 32 VDC

  • Operating current: 60 mA typical

  • Operating temp: -4 to +131 F, -20 to +55 C

  • Warm-up current draw: 14VDC 420 mA

  • 28VDC 220 mA

  • Warm-up time: 70 F ambient 60 seconds

  • 0 F ambient 210 seconds

  • Altitude resolution: Gray code (parallel) output 100ft

  • RS 232 10 or 100ft

  • RS 232 outputs:
  • - Apollo/UPS 1200 baud 17 byte message - Trimble/Garmin 9600 baud 10 byte message - Northstar/Garmin 2400 baud 10 byte message



  • All Wire Supplied with this Product Is Tested And Complies With Far 23.1359 And Far 23.853
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