All you need to do is calibrate the XRX's internal altimeter to match pressure altitude(29.92). The procedure only takes a few seconds, the directions are in the users manual starting on page 43. (sub-heading Additional Menus: Administrative Mode)

Um. You recommended that previously and I replied:

The pressure altitude on the field was 780' (with 29.92 setting). Zaon XRX (internal altimeter) was showing 007 and 008, the best it could be. On my flight, I had one legitimate alert and one false one shortly after (showing 200' below me).

Steve

The only other thing that can be done with out sending the unit in for evaluation is to adjust the digital suppression.

This is best done over the phone as the written directions can be confusing.

Have your XRX powered up and give us a call so we can walk you through the suppression change. 800-496-9430

First thank you for developing a really promising product.
I fly a Mooney m20j, with the xrx interfaced to a 696.

First time I flew it worked flawlessly.

I haven't flown for a few weeks, and recently went out again...and basically the xrx,,,is really not working well at all.
I would say its detection rate in class C airspace near YVR, is 10%. Its false detection is also elevated.

I can't imagine that there are that many AC flying without Mode C. And I can't understand what has changed. I have made six additional flights, with all the same results.

I have checked all connections, and the manual. Nothing seems out of ordinary. I will attempt to re calibrate, alt and hdg. I will also attempt a flight without connection to the 696.
I was impressed by my first flight,,,and eager to have that functionality and safety back. I know it works well..because I saw it with my own eyes.

The AC is stored in a hangar,,,, so no moisture or heat could be a problem.

Any suggestions..would be appreciated.

Kind regards
mark

Actually, you most likely will fix the issue by recalibrating the Altitude.
All traffic threat level is based on the XRX's altimeter or, if it is in pressurized mode, your transponders pressure encoder.

If the Altitude indicated by the XRX does not match the altitude when adjusted to 29.92, then all information is skewed by the difference between what is indicated and actual pressure altitude, resulting in missing traffic and showing you traffic you can't find.

I was finally able to "adjust the digital suppression" yesterday by calling in to support. I will report again when I have some results.