I installed into boat today and wow, works very well.
Works so well I do not even need a VHF antenna, which I do not understand?
VHF did not work with the 12db amp and no vhf antenna.
I have now vhf square loop antenna and uhf double bow tie antenna.
I disconnected my balun cause it needs solder repair. And channel 4.1 still works?
4.1 = 9, 13.1 = 13, 21.1 = 7 and all work perfect without hooking up and work perfect with hooking up to the vhf loop.
One reason I got this amp is channel 4.1 was breaking up badly on the 12db amp and using the FM antenna for VHF, all other VHF worked great on the FM antenna. 4.1 channel is over 40 miles away. Zipcode 23608 is location of house. Boat is around 23669 zip.
The gemini uhf-vhf-fm splitter thing at my house did block the VHF when I hooked up my bowtie antenna as a test
And passed VHF and not uhf when attached to my house antenna as a test.
Boat is 10 miles closer to towers.
Could the signal somehow with all the metal underthere resonate into the coax or say the UHF antenna and the 30db amp has enough power to make it work?
Boat bow points due west. Antennas towers are south west of boat.