After looking at the external antenna requirements for the Skyguard TWX unit. I'm not sure my RV9 has enough real-estate on the bottom to be able to mount all and meet the min separation! No other negatives on the unit that are apparent except it "looks"like a portable unit and not sure how that might go over.
I am just wondering if the Navworx AD might be an effort on FAA part to rethink the " meets performance standards" and if we will have to "meet performance standards" by having a TSOd unit. ? :confused: