I have a OGM anchor light USCG 2NM and it has the interference problem. Orca admits their earlier models have that problem.
But there is worse: it is submersible but not vapor tight hence resulting in a catastrophic condensation problem.
http://www.sailnet.com/forums/gear-m...tml#post796912
I would suppose being submersible is a USCG requirement. Therefore I recommend avoiding all USCG approved lights.
The interference problem is not a big deal. It suffices to install this on the power supply circuit of the radios and the noise is filtered out. I installed it two days ago:
