I just bought my unit...less than 2 months old. So the new units have the same problem.

Before you conclude that this is a Zaon problem, consider this.

I have used my XRX with my 496 for about a year now and never saw the problem - until I updated my 496's firmware to version 3.6. Since then I get the message every now and then.

Garmin may have changed something without telling Zaon.

Good point on the GPS firmware theory.

Does anyone know if you can safely "back-rev" the firmware on a 396/496? I'd like to test this theory.

Also, when replying to this thread, please include your Garmin GPSMAP model (396 or 496) and firmware version. Then we'll have some data to compile and compare.

I have a 496 running firmware version 3.60.

Thanks,

Chad

I ahve recently purchases athe XRX and have it linked to my 496. I have installed the unit in an R44 Helicopter. I seem to get the "traffic not available" after a turn. I made a special bracket to hold the XRX level.

Other problems/symptoms: my transponder code always shows 0000
I really don't find that when I see a diamond, the traffic is in the right direction. I have recalibrated the compass.

Anyone else have one mounted in a helicopter?

My ZAON XRX is grey, version 2.0. My GPS is Garmin GPSMAP 396 rev 4.50

I power both my GPS and the ZAON from a gel cell battery setup, not aircraft power. (My 1999 172R has no cabin power outlets.)

I haven't been able to tie my traffic unavailable messages to any particular event.

Garmin said:

Thank you for contacting Garmin International,

I have checked with the software engineers for the 496 and 396 and there
has been no changes to the way those units receive or process the TIS
information. Also I noticed that one person was talking about
downgrading the software version in his 496. I strongly recommend
against doing that. Downgrading software can have negative effects to
the units. For example it will delete the unlock to the pre-installed
street maps.