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Thread: 73102 AFS GPS Module

  1. #1

    73102 AFS GPS Module

    The description says it will give more accurate runway position than a 430W (presumably with a GA-35 or GA-37). Why is it so much better?

  2. #2
    The 430W and GTN650 output the GPS position in ARINC-429 format, the ARINC-429 resolution is only about 40 feet. Our new GPS resolution is a few feet, NMEA with 4 decimal places resolution. The 430W/650 RS-232 Aviation format is only 3 decimal places.
    Rob Hickman
    Advanced Flight Systems Inc.

  3. #3
    so to get that accuracy would you have to connect it to the serial port of the EFIS and use the internal GPS as the source? That is, I couldn't connect the antenna to my backup GPS and get the same accuracy because it's a result of the format, not the antenna?

  4. #4
    The new GPS Antenna module is actually a GPS and Antenna in the same housing. The latest EFIS software lets you select an independent source for the system location. It will use the AF-GPS for GPS position and GTN-650 for navigation data.
    GPS Resolution Data
    Device LAT Res Deg LAT Res Feet
    GTN650/430W ARINC 0.000171661 62.6
    GTN650/430W Aviation 0.000166667 60.8
    73102 AF GPS 0.00001 3.6
    Rob Hickman
    Advanced Flight Systems Inc.

  5. #5
    If standalone, how is this interfaced to the EFIS?

  6. #6
    Senior Member
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    Mar 2010
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    rob,
    will this work with the 4500?
    Alan

  7. #7
    but it still requires a serial connection to the EFIS then? I'm all out of serial ports unfortunately.

  8. #8
    it would be really great if the GPS, ARINC module, ARHS and the transponder could all connect over ethernet. That would give those of us with only one screen a lot more options.

  9. #9
    Currently the new GPS will only work with the AF-5000 units.
    Rob Hickman
    Advanced Flight Systems Inc.

  10. #10
    Senior Member
    Join Date
    Mar 2010
    Location
    gilford, nh
    Posts
    335
    rats
    when will the 4500 upgrade to 5000 be ready?

    Alan

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