Hey guys, I didn't know which threat to throw this in because it deals with, fpv, controls, aerials, wifi so yea. Ok so Im planning on building a Fixed wing UAV for my year 12 HSC DAT project.
Because I live in australia and rf bands are usually restricted(Like the bands for dragon link etc), I decided that I should use a ptp 2.4ghz ubiquti setup. Latency shouldnt be a large problem for me as it would a slow flying phototaking plane, so if it a few hundred ms out it shouldnt be a problem except for landing but I should be able to sort somthing out. Now im planning on sending video and controls through a ubiquti wifi connection which will be comming from a raspberry pi to a field laptop. I have already been able to send my controls to and from the raspberry pi using ethernet, so everthing works so far. Now my question is that I was planning on using the 2.4ghz rocket m2 and a nano station. But I found another project which uses the rocket m5 and a nano station(http://diydrones.com/profiles/blogs/how-to-build-a-high-definition-fpv-uav-using-a-rasperry-pi-with?commentId=705844%3AComment%3A1792912&xg_source=msg_com_blogpost) It got me wondering should I use 5ghz because of the smaller antenna, but I dont really need such a high data transfer that the 5ghz offers. Also shouldnt 2.4ghz give me a longer range? Also does anyone know some relativly small omni circular polarised 2.4ghz antennas that I could buy? Also should I use a bullet m2 over the rocket m2, its smaller and lighter but the only omni antennas i can find for it are 1m long and cost $200?
Sorry for the ammount of questions and im still learning so please dont be to hard on me. Thanks
Replies
use 5ghz better perpetration of building trees give you longer range. 2.4ghz antenna are much larger than 5.8ghz HK mas still have some but expensive .