On Friday, October 18, 2013 9:35:13 AM UTC-7, Ramy wrote:
I know of at least 5 pilots flying with portable and transponder and have no false alerts. I only know one locally who has the same issue. I would also like to hear the response from the factory. It seem that portables have more issues than brick. I recommend people to get the brick. Ramy

You're just not getting it. The latest firmware fixes the spurious own transponder alerts at the expense of reliable co-altitude alerting. Saying that you have no spurious alerts contributes nothing. Tell me instead about how many alerts you have had for transponder targets that maintained the same altitude as you while in the alerting volume.

If you fly only a glider you may never see this scenario. If you fly a powered airplane then it is not only possible but likely.

Andy