Summary of GNC 420AW

  • Page 1

    What’s new with the 400w / 500w series new operational characteristics of the waas gns 400w/500w series units versus the classic 400/500 series units.

  • Page 2

    This document is written for: • garmin gps 400w, gnc 420w/420aw, and gns 430w/430aw main system software version 2.00 • garmin gps 500w & gns 530w/530aw main system software version 2.00 © 2006 garmin ltd. Or its subsidiaries. All rights reserved. Garmin international, inc., 1200 east 151 st street,...

  • Page 3

    The 400w/500w series of navigators with waas now offer many enhancements over the previous non-waas models. Advancements include new waas-enabled gps antenna, receiver, and associated software. The 400w/500w series system complies with waas tso c146a and also includes a significant hardware upgrade ...

  • Page 4

    Feature classic 400/500 new 400w/500w 15 terrain database optional standard. Increased resolution. 16 dead reckoning (dr) no yes 17 satellite status page yes enhanced with new colors and 3d differential fix notation. 18 graphics speed good much better 19 crossfill yes 12x faster 20 xm radio audio an...

  • Page 5

    Detailed description of feature changes 1. Tso tso c-129/c-129a allowed the use of gps for supplemental navigation for non-precision approaches. An installation meeting tso-146a requirements allows the use of your 400w/500w navigators as the primary navigation device for precision approaches. See yo...

  • Page 6

    Gps accuracy gps condition accuracy level accuracy of the original gps system, which was subject to accuracy degradation under the government- imposed selective availability (sa) program. 100 meters typical gps position accuracy without sa. 15 meters typical differential gps (dgps) posi- tion accura...

  • Page 7

    5. Gps position calculation rate the waas gps receiver calculates its position five times per second rather than once per second like the classic c-129/c-129a gps systems. This, together with the enhanced vertical accuracy and other system en- hancements, allows for vertical approach guidance. 6. Gp...

  • Page 8

    11. Obs operation susp after canceling obs when on from side of obs path – the change in behavior is this: when you put the 400w/500w-series unit into obs mode and the course selected places the aircraft onto the from side and then you cancel obs, the obs course is retained but the unit indicates th...

  • Page 9

    14. Magnetic variation options magnetic variation has been simplified to the choices of magnetic and true. See the section on units/position of the setup 1 page in the aux pages chapter of the pilot’s guide for more details. 15. Terrain database the terrain function in nav mode is now a standard fea...

  • Page 10

    20. Xm radio audio and weather xm weather is available through the xm satellite radio service when activated in the optional installa- tion of the gdl 69 or 69a. Textual and graphic weather products such as nexrad graphic weather with precipi- tation type, radar coverage, tfrs, tafs, and metars symb...

  • Page 11

    21. Kap140/kfc225 autopilot operation-compatible autopilot outputs for the king kap140/kfc225 autopilots are activated manually by the pilot after being prompted during the approach procedure. Since these autopilots revert to roll mode-wings level when transitioning to approach mode, it is important...

  • Page 12

    © 2006 garmin ltd. Or its subsidiaries garmin international, inc. 1200 east 151 st street, olathe, kansas 66062, u.S.A. Garmin at, inc. 2345 turner rd., s.E., salem, oregon 97302, u.S.A. Garmin (europe) ltd. Unit 5, the quadrangle, abbey park industrial estate, romsey, so51 9dl, u.K. Garmin corporat...