Go Back  RCU Forums > RC Airplanes > RC Jets
Reload this Page >

Oh Great.... just what we need to show up at the flying field!

Community
Search
Notices
RC Jets Discuss RC jets in this forum plus rc turbines and ducted fan power systems

Oh Great.... just what we need to show up at the flying field!

Thread Tools
 
Search this Thread
 
Old 10-23-2015, 07:30 AM
  #1  
RCISFUN
Thread Starter
My Feedback: (44)
 
RCISFUN's Avatar
 
Join Date: Apr 2002
Location: Erie, PA
Posts: 6,860
Received 26 Likes on 23 Posts
Default Oh Great.... just what we need to show up at the flying field!

I saw this article on the following web site:

http://www.atecorp.com/media/industr...m_medium=email





[h=1]
Long-Distance Jammer Is Taking Down Drones[/h] 10/21/2015

The battle for control of the skies continues. As the amount of unmanned aerial vehicles (UAVs) increases each year, contracting parties are stepping up their efforts to keep the devices out of the air. Battelle, a large nonprofit research and development organization headquartered in Ohio, has now developed a portable, shoulder-mounted rifle, dubbed the DroneDefender, that attacks UAVs with radio waves.

In a press release from Battelle, the gun is stated to use “radio control frequency disruption technologies to safely stop drones in the air, before they can pose a threat to military or civilian safety.” A video accompanying the post describes that it operates on standard GPS and ISM radio bands, allowing for it to interference with commercial UAV signals.

Reportedly, the DroneDefender can hit objects up to 400 meters with an effective cone diameter of 30°. This is about as far as Battelle goes with the technical details, so the actual frequency ranges of the rifle still remain unknown. However, it is easy to determine which ISM radio bands they most likely run on by looking at the consumer UAV market.

The DJI Phantom series, for example, as seen in video above, shows that the DroneDefender is likely targeting the 2.4 GHz range (if it is attacking the Phantom 1 or Phantom 2). This puts them on the same range as standard Wi-Fi networks, Bluetooth connections, microwave ovens, car alarms, baby monitors, and ZigBee devices. To disrupt the GPS signal, the rifle needs to broadcast at 1575.42 MHz or 1227.60 MHz, depending on the UAV.

When a remote control signal is interfered with, drones will often enter into their safety protocols, which usually includes one of three options. It will either hover in place until the pilot can regain a control link, attempt to land so the pilot can recover it physically, or try to return to its point of origin. Since the DroneDefender is mentioned to be attacking the GPS signal as well, the likely scenario is that the device will hover for a while or try to land.
[h=1]
[/h]
Attached Thumbnails Click image for larger version

Name:	Screen-Shot-.jpg
Views:	285
Size:	52.1 KB
ID:	2127151  
Old 10-23-2015, 07:42 AM
  #2  
Gary Jefferson
My Feedback: (167)
 
Join Date: Jan 2002
Location: Lebanon OH
Posts: 1,359
Likes: 0
Received 1 Like on 1 Post
Default

At only 400 meters that is well within visual distance of anyone using one of these probably and I would say this is of little concern since it is most likely very expensive. Probably being developed for military applications and the link posted to the article also makes it sound like it is most likely illegal to use one of these.
Old 10-23-2015, 07:49 AM
  #3  
rhklenke
My Feedback: (24)
 
rhklenke's Avatar
 
Join Date: Jun 2002
Location: Richmond, VA
Posts: 5,998
Likes: 0
Received 34 Likes on 21 Posts
Default

Originally Posted by Gary Jefferson
At only 400 meters that is well within visual distance of anyone using one of these probably and I would say this is of little concern since it is most likely very expensive. Probably being developed for military applications and the link posted to the article also makes it sound like it is most likely illegal to use one of these.
Well, the frequencies that it has to block are in the 2.4 GHz band as we know, and that is also the frequencies used in Microwave ovens. Thus, what the guy is holding is an "inside out" microwave oven. Who wants to be the one who's job is to shoot that?!?!

Bob
Old 10-23-2015, 08:01 AM
  #4  
RCISFUN
Thread Starter
My Feedback: (44)
 
RCISFUN's Avatar
 
Join Date: Apr 2002
Location: Erie, PA
Posts: 6,860
Received 26 Likes on 23 Posts
Default

Originally Posted by rhklenke
Well, the frequencies that it has to block are in the 2.4 GHz band as we know, and that is also the frequencies used in Microwave ovens. Thus, what the guy is holding is an "inside out" microwave oven. Who wants to be the one who's job is to shoot that?!?!

Bob
Hey Bob, Not me!

Attached Thumbnails Click image for larger version

Name:	14838.jpg
Views:	73
Size:	358.2 KB
ID:	2127155  
Old 10-23-2015, 08:43 AM
  #5  
grbaker
My Feedback: (29)
 
grbaker's Avatar
 
Join Date: Dec 2001
Location: La Porte TX
Posts: 3,566
Received 26 Likes on 19 Posts
Default

I remember reading an article years ago about a revolutionary automotive engine that got insane fuel economy as well as great horsepower output. The article said it used microwave technology for the ignition system and that if you touched one of the ignition leads while it was running......... it would kill you.

It didn't go into production for some reason.
Old 10-23-2015, 03:36 PM
  #6  
SECRET AGENT
My Feedback: (18)
 
SECRET AGENT's Avatar
 
Join Date: Mar 2002
Location: Bush, LA
Posts: 1,260
Likes: 0
Received 1 Like on 1 Post
Default

Gee, how did I get this massive brain tumor? All I did was test this giant microwave transmitter next to my head? Yikes!
Old 10-25-2015, 09:11 AM
  #7  
cmp3cantrj
 
Join Date: Jan 2011
Location: NewarkNottinghamshire, UNITED KINGDOM
Posts: 134
Likes: 0
Received 0 Likes on 0 Posts
Default

In the UK this (and any other similar system ) would definitely be illegal under the AIr Navigation Order "endangering an aircraft"

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.