marpa

I've only had a little on-the-water experience with this and other collision avoidance features that came in the LightHouse Release 15 update last October, but I sense that a lot of boaters will appreciate the intercept zone concept...

Does Navico 4G radar (branded as Simrad, Lowrance, or B&G) have a "ridiculously broken MARPA" function? I've heard similar words from three different 4G owners in the last few weeks...