What I know about antennas you can put on the head of a pin. I am in need of a antenna . Maybe two . My ship to shore works great.Thanks to the antenna on top of the mast. I have no am/fm reception on the radio also I would like to put a flat screen tv on board for those long nights and I will need a antenna for that also. Do they combine the antennas? Or are they seperate. I don't really look forward to drilling a bunch of holes in my sailboat for entertainment purposes. So what should I do to get the best reception for my tv/radio while on my sailboat< both at the dock and while at anchor?