Im trying to deploy 5 vehicles (2 quads and 3 planes). They need to all transmit video, telemetry and rc quite far (60km) and all at the same time (all 5 vehicles). We have access radio towers 50m in elevation we are allowed to use to for the antennas and transmitters and receivers but im having a hard time wrapping my head around a few things.
• If I put a bunch of high gain antennas to cover near 360º and simply alter the frequency of the receiver and transmitter, will that work given we will need to take these to their end of RF capabilities? (and their frequencies will be too close)
• If I switch to a digital link, does anyone have any suggestions. I'm not too cost conscious. I don’t want 5 sets of 20k silvus radios but 2-5k for each system (I presume I will need 5) is ok.
- It's just that doing the math, I can't get this to work on a fully digital links (i.e. microhard) unless i add such high gain antennas i need to start tracking them which i need to avoid. I want a healthy link budget so im trying to keep the frequency a low as practical but I cant use 900mhz, it would need to be 868 so a lot of the stuff ive seen isnt available in 868. I thought of ubiquity units but the 900mhz side back an issue.
I am trying to manage how I can get 60km coverage (for telemetry, video and rc control) and not have all the vehicles not let the other have any RF space.
Any thoughts (LTE is also out)? (edited)