On Mon, 21 Jun 2004 08:11:04 +0100, "Julian Scarfe"
wrote:

I do the same and I have an STEC 60-2.

The problem seems to be the tracking algorithm. If you're slightly off
track a/p turns the aircraft through, say, 20 degrees, and waits for a CDI
movement.

I have an STEC50 and a CNX80.

The CNX80 has airways, so regardless of how I am cleared, I track enroute
using GPS mode.

As recommended by STEC, I use the APR mode for tracking a GPS course.

My off-track distance does vary, but by usually less than 1000'. In
heading mode, I will eventually drift off that much, or more. The turns
are rarely more than five degrees, once centered.


Ron (EPM) (N5843Q, Mooney M20E) (CP, ASEL, ASES, IA)