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Subject:
Triangulation / Direction Finding
Yimmy
11/22/2006 1:18:17 PM
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| Firstly, I am just infantry and have never been on any signals courses or otherwise been privy to possibly classified informtion, so don't see anything wrong with discussing this here.
Everyone has heard of being "DF'd" by the enemy and having lots of nasties thrown at them as a result, while DF of course stands for Direction Finding.
Now, I was arguing with a signaller friend of mine about it. Obviously him being a signaller I am at a disadvantage, but I am certain I am right.
To triangulate an enemy radio broadcast, you need two landrovers (or other radio reciever set-ups) don't you? He was arguing that you need three recievers to locate the enemy.
I am sure it is two, as if both recievers know each-others location, and both detect the enemy bradcast and find its direction, they form a triangle don't they? This being with two point of the triangle the two recivers, and one corner the enemy broadcast.
Knowing two angles (through knowing their locations and the direcion of the enemy), and knowing one side (being the distance between the two recievers), allows them to find the other two sides (and therefore distance to the enemy). Knowing where they are, and the direction and distance to the enemy, they can plot the enemies location.
Right?
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