Well I finally had a break in weather and time to test flight tower ( 25ish feet 15dbi Omni antenna on a pole with 4 watt amps) I will have to say very interesting results! I will make a video with more detail next week and post it!
But I was loosing video feed BUT I think its was on the Mavic end! here is a screen shot notice the distance AND the HD LEVEL! The hd level is higher then the controller level!!! but I was getting inference a lot more ( blinking levels and a warning) but if I recall right I was getting a lot of inference with theses Omni 15 dbi antennas before! so I may have to try the Omni 9dbi antennas on the pole next! keep in mind I have tall trees with a lot of leaves!! so this is looking pretty good thus far!!! and I was only 260 feet high too!!!!
View attachment 39854