People have used it.  You need to make sure the jammer node is within
the antenna beam of the node that is being jammed and the receive power
from the jammer is enough to actually impact SINR.

kb

Kaushik B. Patel
Adjacent Link LLC

On 07/02/2018 09:36 PM, Vincent, Mike wrote:
> Is anyone using the EMANE jammer
> (https://github.com/adjacentlink/emane-jammer-simple) with directional
> antennas in a simulation?  I’ve got a simple simulation using
> directional antennas and freespace propagation where 2 nodes are given a
> single GPS event, then don’t move, just point at each other:
> 
>  
> 
> 1 ---- 2
> 
>  
> 
> They come up fine, traffic passes and nothing really happens.  I’ve
> tried to add a jammer at a different lat/long/alt with corresponding
> antenna steering events to get the azimuth / elevation pointed towards
> node 2 (using the formulas here: 
> https://github.com/adjacentlink/emane/wiki/Computing-Antenna-Gain):
> 
>  
> 
> 1 ---- 2
> 
>      /
> 
> J-
> 
>  
> 
> Although the jammer is configured to use the same transmitting frequency
> at the same power as node 1, I see no effects on node 2 in terms of
> traffic loss.  The only way I can get an effect is to move the Jammer to
> the exact lat/long/alt as node 1 and use the same antenna steering az/el
> as node 1.  Of course, this is less than ideal if I want to add mobility
> to the scenario – the Jammer will have to track node 1.
> 
>  
> 
> What am I doing wrong?  Has anyone else had success with jamming
> directional antennas in freespace propagation?
> 
>  
> 
> Cheers,
> 
>  
> 
> Michael J. Vincent
> 
> Lead Network Systems Engineer | The MITRE Corporation | Network
> Technology & Security (T864) | +1 (781) 271-8381
> 
>  
> 
> 
> 
> _______________________________________________
> emane-users mailing list
> emane-users@nrl.navy.mil
> https://publists.nrl.navy.mil/mailman/listinfo/emane-users
> 
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