Let's see if I can explain this well. I have seen some tactical radios which are SATCOM( Satellite communications), and can use different types of antennas. The fixed radio station will have some sort of a sat antenna (It doesn't have to be a dish antenna)that will have to be directed to the satellite being used to get a good signal. Now you can use the same radio but in the move(like installing it on a combat vehicle or an aircraft). The antenna will be different of course and it doesn't need to be directed in order for it work. The aircraft/vehicle will be able to use the radio while in the move.
From what I understand, the signal needs to be concentrated to form something like a beam so that it can reach far distances --just like what the dish antenna do in TV sat stations--So, what happens with the other case? The case that uses a different type of an antenna while using the radio in vehicles and aircrafts. How could an antenna that is not directional send a signal powerful enough to reach the satellite? And you know the vehicles/aircrafts are moving, so how come they don't lose the satellite?
And if the solution adopted in moving vehicles is superior, why isn't it being used in fixed stations? Instead of going through the trouble of directing the antenna every time we need to setup a station?
I hope I made it clear.
Thanks.
From what I understand, the signal needs to be concentrated to form something like a beam so that it can reach far distances --just like what the dish antenna do in TV sat stations--So, what happens with the other case? The case that uses a different type of an antenna while using the radio in vehicles and aircrafts. How could an antenna that is not directional send a signal powerful enough to reach the satellite? And you know the vehicles/aircrafts are moving, so how come they don't lose the satellite?
And if the solution adopted in moving vehicles is superior, why isn't it being used in fixed stations? Instead of going through the trouble of directing the antenna every time we need to setup a station?
I hope I made it clear.
Thanks.
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