Garmin gps 500 User Guide

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4 - Procedures

The GPS 500 provides non-precision approach guidance using its built-in GPS receiver. The GPS

receiver can also be used as a supplemental aid for precision approaches and non-precision localizer-
based approaches, but external localizer and glideslope receivers MUST be used for primary approach
course guidance.

Approaches designed specifically for GPS are often very simple and do not require overflying a VOR

or NDB. Currently, many non-precision approaches have “GPS overlays” to let you fly an existing
procedure (VOR, VOR/DME, NDB, RNAV, etc.) more accurately using GPS. To date, there are over
2,400 GPS-only approaches and over 2,900 GPS overlay approaches worldwide.

Many overlay approaches are more complex (in comparison to GPS-only approaches). The GPS 500

displays and guides you through each leg of the approach—automatically sequencing through each of
these legs, up to the missed approach point (MAP). Approaches may be flown “as published” with the
full transition—using any published feeder route or initial approach fix (IAF)—or may be flown with a
vectors-to-final transition.

Approach operations on the GPS 500 typically begin with the same basic steps:

1. Select the destination airport using the direct-to key, or as the last waypoint in the active flight plan.

2. Choose the “Select Approach?” option from the Procedures page (see page 55) or from the Active Flight Plan

Options. (See page 49).

3. “Load” the approach (often while en route) in anticipation of its future use. This places the approach in the active

flight plan, but retains course guidance in the en-route section until the approach is “Activated”.

4. “Activate” the full approach or vectors-to-final, as appropriate. In some scenarios, you may find it more convenient

to immediately activate the approach and skip the “Load” process outlined above in step 3. The GPS 500 provides
both options.

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