I have 51% signal strength on a brand new 14db aerial with LOS to Ngarara. I am in the fringe area, but thought I would be okay with the height of the house. When I got the alignment right by GPS I realised I literally could see the transmitter on the horizon. This is despite already having an old hills minilink with 20db gain inside and new RF cable, bar a short length thats old but externally sound.
Should I upgrade to a better aerial (if so what Db)?
Should I now go for a masthead amp instead?
Also the aerial has the option of rotation down from the horizontal, should I use this to point at the middle of the mast, which is slightly below my horizon?
Thanks