• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:

About uni-directional antenna

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Nov 11, 2008
Say...I am in search for some kind of antenna with beamwidth no more than 15 degrees. The beam orientation should be steerable by programming and the size of the antenna should be around 5 inches.
I have searched Cisco, d-link and TP-link, but the problem is when the beamwidth becomes small, the size of antenna get too large to be mounted on my robot platform.

Could any one help me? Thanks a lot!
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