I attended the AOPA Expo in Harford, CT earlier this month and visited the Zaon booth. They are developing an installed system that will use remote antennas and I believe some of the anomolies that you described will be eliminated with the new system. This new system will cost about twice what the existing XRX costs now, but I was told that Zaon will offer a 100% refund of your original purchase price if you exchange your XRX unit for the new design, when it becomes available. The message was that the guts in the new system are the same guts in the existing system, so they can reuse everything except the case.

If this all pans out, it is a very attractive offer and one of the reasons that I recently purchased my XRX. I have now made half the investment for an installed system and can still use the features and benefits of the XRX until the next generation is perfected.