Try This...
Jack,We have a 2001 Catalina 36 MkII. I was getting ready to spend $125+ for a cool-looking mast-mounted TV antenna, (plus the installation on the mast, running the wire, drilling, etc., etc., etc...). I did some research on the Internet and ran across a site that featured critiques of equipment from recent purchasers. The reviews for the high-priced antennas were mixed - from "this works OK" to "this thing is pure crap - I got ripped off" - all on the same piece of equipment. So, until I get this sorted out and decide what to do, here is what I did...Took the stock 'rabbit-ears' from boat TV, and extended the antenna wire about 10' with some over-the-counter foam-wire from Orchard Supply ($3). Whenever we want to watch TV, I run the antenna/wire out the hatch right above the TV, shove the base of the antenna in the mainsail cover mast tie (foward side of mast), extend the rabbit ears to touch the port and starboard center shrouds, and, viola!, TV reception better then cable. We gained access to at least 10 more channels this way.That was 6 months ago...still have not decided what other antenna to use...why bother if this works...Hey, man, it looks funky, but it only takes about 2 minutes to set up/take down, was 'almost' free and does the trick. I have compared "reception" notes with my marina neighbors and there is NO difference in the reception that we get with this el-cheapo version and their expensive 'marine-grade' antennas.Whateversuitsya....Good luck.Bob