Tammy & I were able to install the Vesper Marine AIS (ship traffic) using a Splitter off of the VHF antenna on the top of the mast (52'). It also provides a FM antenna. The DMK Engine Monitor now provides alternator voltage, both battery banks voltage, RPM, engine coolant and oil pressure to our on board wifi system, we can now see all this and the other ships name etc. on a moving map. They can see us too, huge safety upgrade!