Drones Carrying Explosives

Arthur T Knackerbracket has processed the following story from Bruce Schneier's blog:

Do not fall for the hype" - anti-drone technology is very much a joke currently.

I've done a walk through on why RF jammers are at best more of a last resort than crossing your fingers when you do not have advanced intel.

First of a lot of drones when they loose control go into a short path flight" back towards what they think is their start point". It takes no great brains to realise that if you change the real start point co-ordinates for the attack point co-ordinates you know where the drone is going to try and land at...

Secondly you can only jam a frequency successfully in two ways,

1, Know the actual frequency
2, Put kilowatts of power up.

Radio receivers work on energy in a bandwidth" to control RC aircraft back in the 1970's you could use as little as 1kHz bandwidth at the upper end of the HF band. That technology still works today.

Now if you need to jam from 1MHz to more than 6GHz to jam you would effectively need more than 6,000,000,000/1,000, more than 6 million times the power at the drone mid point with respect to the operator who could without much difficulty push 100watts into an antenna that makes it directional and more like 1kW is being used.

Read more of this story at SoylentNews.