Originally Posted by colemj
13 years with no problem leads me to believe that having them 12" apart isn't hurting anything
Well, you haven't had the AIS
receiver in the system that long as class B was introduced just 4 years ago but even so, if it was going to damage it, it would likely have done so by now. Just for the OP's sake though, it's not the prudent thing to do. You obviously have an excellent installation
there, your fine with the antenna's in very close proximity and you've had no issues with it. I'd be a little too concerned about transmitting 25 watts on the primary VHF
that close to an AIS
. The splitter has some loss so that may be helping the AIS receiver. Who knows? At least the 2 meter rig is removed in frequency by around 10Mhz.