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First hand experience with GPS Jamming



 
 
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  #1  
Old July 24th 11, 05:37 AM posted to rec.aviation.soaring
Steve Leonard[_2_]
external usenet poster
 
Posts: 1,076
Default First hand experience with GPS Jamming

Got my first experience with GPS Jamming. Apparently, lots of
truckers on I-35 near the Kansas-Oklahoma border were jamming today.
I would go from 8 satellites showing on my GPS Nav Display (Cambridge
Model 20 GPS) to none, lost distance to turnpoint, lost ground track,
lost bearing to turnpoint in the blink of an eye. Typically, after a
minute or two, the GPS Nav would resume navigation with three
satellites showing. It would in rather short order (10-15 seconds)
get back up to tracking 8 satellites. Repeat process in 2-5 minutes.

I am assuming this was GPS jamming, as nobody else flying from
Sunflower reported any sort of issues, and it only happened in this
one stretch along I-35. Interestingly enough, it happend only once (I
think ) after I crossed to the east side or I-35. Maybe I was just
far enough from the jammers.

My flight is uploaded to OLC. If you download it and watch it in any
playback, you will see me stop, then jump forward. This particular
GPS has worked perfectly before and since. It was only this one brief
section of one leg of the flight. Of course, it really gets your
attention when your display goes all dashes, and the computer says
"GPS Wait".

Anyone else had an "encounter" like this?

Just curious

Steve Leonard
Nimbus 3 VJS
  #2  
Old July 24th 11, 07:10 AM posted to rec.aviation.soaring
Mike[_37_]
external usenet poster
 
Posts: 72
Default First hand experience with GPS Jamming

On Jul 23, 10:37*pm, Steve Leonard wrote:
Got my first experience with GPS Jamming. *Apparently, lots of
truckers on I-35 near the Kansas-Oklahoma border were jamming today.
I would go from 8 satellites showing on my GPS Nav Display (Cambridge
Model 20 GPS) to none, lost distance to turnpoint, lost ground track,
lost bearing to turnpoint in the blink of an eye. *Typically, after a
minute or two, the GPS Nav would resume navigation with three
satellites showing. *It would in rather short order (10-15 seconds)
get back up to tracking 8 satellites. *Repeat process in 2-5 minutes.

I am assuming this was GPS jamming, as nobody else flying from
Sunflower reported any sort of issues, and it only happened in this
one stretch along I-35. *Interestingly enough, it happend only once (I
think ) after I crossed to the east side or I-35. *Maybe I was just
far enough from the jammers.

My flight is uploaded to OLC. *If you download it and watch it in any
playback, you will see me stop, then jump forward. *This particular
GPS has worked perfectly before and since. *It was only this one brief
section of one leg of the flight. *Of course, it really gets your
attention when your display goes all dashes, and the computer says
"GPS Wait".

Anyone else had an "encounter" like this?

Just curious

Steve Leonard
Nimbus 3 VJS


Yes, about two weeks ago, flying from Moriarty. Some of the same
thing you described, plus vertical climbs that would delay and show
vertical movement without circling. I was thinking it was military
jamming or problems under thick water laden clouds.
http://www.onlinecontest.org/olc-2.0...htId=211956832

Mike Carris

  #3  
Old July 24th 11, 04:57 PM posted to rec.aviation.soaring
glidergeek
external usenet poster
 
Posts: 183
Default First hand experience with GPS Jamming



"Got my first experience with GPS Jamming. Apparently, lots of
truckers on I-35 near the Kansas-Oklahoma border were jamming today".

What kind of equipment do you think these truckers were using to jam
with?
  #4  
Old July 24th 11, 05:12 PM posted to rec.aviation.soaring
T8
external usenet poster
 
Posts: 429
Default First hand experience with GPS Jamming

On Jul 24, 11:57*am, glidergeek wrote:
"Got my first experience with GPS Jamming. *Apparently, lots of
truckers on I-35 near the Kansas-Oklahoma border were jamming today".

What kind of equipment do you think these truckers were using to jam
with?


Cheap. Google....

I've seen intermittent loss of GPS signal at low altitude twice this
Summer... now I know why. In both cases I was very close to a
highway.

Things that make you go "grrrrrrrrrrr."

-Evan Ludeman / T8
  #5  
Old July 25th 11, 07:52 AM
Alfaest Alfaest is offline
Junior Member
 
First recorded activity by AviationBanter: Jul 2011
Posts: 11
Default

Quote:
Originally Posted by Steve Leonard[_2_] View Post
Got my first experience with GPS Jamming. Apparently, lots of
truckers on I-35 near the Kansas-Oklahoma border were jamming today.
I would go from 8 satellites showing on my GPS Nav Display (Cambridge
Model 20 GPS) to none, lost distance to turnpoint, lost ground track,
lost bearing to turnpoint in the blink of an eye. Typically, after a
minute or two, the GPS Nav would resume navigation with three
satellites showing. It would in rather short order (10-15 seconds)
get back up to tracking 8 satellites. Repeat process in 2-5 minutes.

I am assuming this was GPS jamming, as nobody else flying from
Sunflower reported any sort of issues, and it only happened in this
one stretch along I-35. Interestingly enough, it happend only once (I
think ) after I crossed to the east side or I-35. Maybe I was just
far enough from the jammers.

My flight is uploaded to OLC. If you download it and watch it in any
playback, you will see me stop, then jump forward. This particular
GPS has worked perfectly before and since. It was only this one brief
section of one leg of the flight. Of course, it really gets your
attention when your display goes all dashes, and the computer says
"GPS Wait".

Anyone else had an "encounter" like this?

Just curious

Steve Leonard
Nimbus 3 VJS
The GPS jamming device is really a kind of gadget that block the signal of a GPS unit. I hit upon a website that sells lots of jammers like the cell phone jammer and GPS jammer, it is http://www.jammerall.com/ , you can go there and take a look , it's really funny.
  #6  
Old July 25th 11, 04:30 PM posted to rec.aviation.soaring
glidergeek
external usenet poster
 
Posts: 183
Default First hand experience with GPS Jamming

On Jul 24, 11:52*pm, Alfaest wrote:
'Steve Leonard[_2_ Wrote:









;777762']Got my first experience with GPS Jamming. *Apparently, lots of
truckers on I-35 near the Kansas-Oklahoma border were jamming today.
I would go from 8 satellites showing on my GPS Nav Display (Cambridge
Model 20 GPS) to none, lost distance to turnpoint, lost ground track,
lost bearing to turnpoint in the blink of an eye. *Typically, after a
minute or two, the GPS Nav would resume navigation with three
satellites showing. *It would in rather short order (10-15 seconds)
get back up to tracking 8 satellites. *Repeat process in 2-5 minutes.


I am assuming this was GPS jamming, as nobody else flying from
Sunflower reported any sort of issues, and it only happened in this
one stretch along I-35. *Interestingly enough, it happend only once (I
think ) after I crossed to the east side or I-35. *Maybe I was just
far enough from the jammers.


My flight is uploaded to OLC. *If you download it and watch it in any
playback, you will see me stop, then jump forward. *This particular
GPS has worked perfectly before and since. *It was only this one brief
section of one leg of the flight. *Of course, it really gets your
attention when your display goes all dashes, and the computer says
"GPS Wait".


Anyone else had an "encounter" like this?


Just curious


Steve Leonard
Nimbus 3 VJS


The GPS jamming device is really a kind of gadget that block the signal
of a GPS unit. I hit upon a website that sells lots of jammers like the
cell phone jammer and GPS jammer, it ishttp://www.jammerall.com/, you
can go there and take a look , it's really funny.

--
Alfaest


This product can send mess codes to create interference to block
signals from the GSP satellites and the typical jamming range is 10 to
20 meters.

10-20 meters? how would that jam my GPS in a glider at altitude?
  #7  
Old July 25th 11, 05:54 PM posted to rec.aviation.soaring
jim wynhoff
external usenet poster
 
Posts: 41
Default First hand experience with GPS Jamming

On Jul 25, 8:30*am, glidergeek wrote:
On Jul 24, 11:52*pm, Alfaest wrote:





'Steve Leonard[_2_ Wrote:


;777762']Got my first experience with GPS Jamming. *Apparently, lots of
truckers on I-35 near the Kansas-Oklahoma border were jamming today.
I would go from 8 satellites showing on my GPS Nav Display (Cambridge
Model 20 GPS) to none, lost distance to turnpoint, lost ground track,
lost bearing to turnpoint in the blink of an eye. *Typically, after a
minute or two, the GPS Nav would resume navigation with three
satellites showing. *It would in rather short order (10-15 seconds)
get back up to tracking 8 satellites. *Repeat process in 2-5 minutes.


I am assuming this was GPS jamming, as nobody else flying from
Sunflower reported any sort of issues, and it only happened in this
one stretch along I-35. *Interestingly enough, it happend only once (I
think ) after I crossed to the east side or I-35. *Maybe I was just
far enough from the jammers.


My flight is uploaded to OLC. *If you download it and watch it in any
playback, you will see me stop, then jump forward. *This particular
GPS has worked perfectly before and since. *It was only this one brief
section of one leg of the flight. *Of course, it really gets your
attention when your display goes all dashes, and the computer says
"GPS Wait".


Anyone else had an "encounter" like this?


Just curious


Steve Leonard
Nimbus 3 VJS


The GPS jamming device is really a kind of gadget that block the signal
of a GPS unit. I hit upon a website that sells lots of jammers like the
cell phone jammer and GPS jammer, it ishttp://www.jammerall.com/, you
can go there and take a look , it's really funny.


--
Alfaest


This product can send mess codes to create interference to block
signals from the GSP satellites and the typical jamming range is 10 to
20 meters.

10-20 meters? how would that jam *my GPS in a glider at altitude?- Hide quoted text -

- Show quoted text -


The GPS signal from the satellites is a very low amplitude psuedo-
random-noise signal. It doesn't take much to make it unusable. A choke
ring antenna would probably eliminate the problem if you always flew
wings level, but that's not going to happen, is it?
  #8  
Old August 22nd 11, 10:28 AM
Alfaest Alfaest is offline
Junior Member
 
First recorded activity by AviationBanter: Jul 2011
Posts: 11
Default

Quote:
Originally Posted by glidergeek View Post
On Jul 24, 11:52*pm, Alfaest wrote:
'Steve Leonard[_2_ Wrote:









;777762']Got my first experience with GPS Jamming. *Apparently, lots of
truckers on I-35 near the Kansas-Oklahoma border were jamming today.
I would go from 8 satellites showing on my GPS Nav Display (Cambridge
Model 20 GPS) to none, lost distance to turnpoint, lost ground track,
lost bearing to turnpoint in the blink of an eye. *Typically, after a
minute or two, the GPS Nav would resume navigation with three
satellites showing. *It would in rather short order (10-15 seconds)
get back up to tracking 8 satellites. *Repeat process in 2-5 minutes.


I am assuming this was GPS jamming, as nobody else flying from
Sunflower reported any sort of issues, and it only happened in this
one stretch along I-35. *Interestingly enough, it happend only once (I
think ) after I crossed to the east side or I-35. *Maybe I was just
far enough from the jammers.


My flight is uploaded to OLC. *If you download it and watch it in any
playback, you will see me stop, then jump forward. *This particular
GPS has worked perfectly before and since. *It was only this one brief
section of one leg of the flight. *Of course, it really gets your
attention when your display goes all dashes, and the computer says
"GPS Wait".


Anyone else had an "encounter" like this?


Just curious


Steve Leonard
Nimbus 3 VJS


The GPS jamming device is really a kind of gadget that block the signal
of a GPS unit. I hit upon a website that sells lots of jammers like the
cell phone jammer and GPS jammer, it ishttp://www.jammerall.com/, you
can go there and take a look , it's really funny.

--
Alfaest


This product can send mess codes to create interference to block
signals from the GSP satellites and the typical jamming range is 10 to
20 meters.

10-20 meters? how would that jam my GPS in a glider at altitude?


Whatever you do, you want to do it by yourself. Whatever you think, you think about it in your mind. Whatever you have said, you say what you think is right. It is your right to keep all that about you secret. If there is someone steals them and cheats you by the way, if there is someone spies you and control you, you will not have the free right to achieve what you want to. What will you choose to do? Stay there to be ordered about or take courage to fight with them. so come to http://www.jammerall.com/ to buy a GPS signal jammer, it will defeat all your enemies and get back the right and time that belongs to you. Believe it or not, these stores do have the magic to solve your problem. i have benefit a lot from it.
  #9  
Old August 23rd 11, 03:48 AM
Alfaest Alfaest is offline
Junior Member
 
First recorded activity by AviationBanter: Jul 2011
Posts: 11
Smile

Quote:
Originally Posted by Steve Leonard[_2_] View Post
Got my first experience with GPS Jamming. Apparently, lots of
truckers on I-35 near the Kansas-Oklahoma border were jamming today.
I would go from 8 satellites showing on my GPS Nav Display (Cambridge
Model 20 GPS) to none, lost distance to turnpoint, lost ground track,
lost bearing to turnpoint in the blink of an eye. Typically, after a
minute or two, the GPS Nav would resume navigation with three
satellites showing. It would in rather short order (10-15 seconds)
get back up to tracking 8 satellites. Repeat process in 2-5 minutes.

I am assuming this was GPS jamming, as nobody else flying from
Sunflower reported any sort of issues, and it only happened in this
one stretch along I-35. Interestingly enough, it happend only once (I
think ) after I crossed to the east side or I-35. Maybe I was just
far enough from the jammers.

My flight is uploaded to OLC. If you download it and watch it in any
playback, you will see me stop, then jump forward. This particular
GPS has worked perfectly before and since. It was only this one brief
section of one leg of the flight. Of course, it really gets your
attention when your display goes all dashes, and the computer says
"GPS Wait".

Anyone else had an "encounter" like this?

Just curious

Steve Leonard
Nimbus 3 VJS

it is really cool with a cell phone signal jammer.Your cell phone perhaps is giving out your secrets in face with the attack of cell phone tracking devices. What can be done to ensure the information security? Fortunately, the mobile phone jammers help us to come over the troublesome problem.A friend of mine who is a teacher was once annoyed by his students texting short messages during class, and later he bought a portable cell phone jammer, then all the students were confused that their cell phones cannot receive any signals even if it was the most advanced one.there are so charms of it.LOL...BTW,my friend said he bought it from online http://www.jammerall.com/ , and I checked some sites about that certain item. It's so funny that I'm thinking of purchasing one as well.
  #10  
Old August 24th 11, 02:36 AM
Alfaest Alfaest is offline
Junior Member
 
First recorded activity by AviationBanter: Jul 2011
Posts: 11
Default

Quote:
Originally Posted by Steve Leonard[_2_] View Post
Got my first experience with GPS Jamming. Apparently, lots of
truckers on I-35 near the Kansas-Oklahoma border were jamming today.
I would go from 8 satellites showing on my GPS Nav Display (Cambridge
Model 20 GPS) to none, lost distance to turnpoint, lost ground track,
lost bearing to turnpoint in the blink of an eye. Typically, after a
minute or two, the GPS Nav would resume navigation with three
satellites showing. It would in rather short order (10-15 seconds)
get back up to tracking 8 satellites. Repeat process in 2-5 minutes.

I am assuming this was GPS jamming, as nobody else flying from
Sunflower reported any sort of issues, and it only happened in this
one stretch along I-35. Interestingly enough, it happend only once (I
think ) after I crossed to the east side or I-35. Maybe I was just
far enough from the jammers.

My flight is uploaded to OLC. If you download it and watch it in any
playback, you will see me stop, then jump forward. This particular
GPS has worked perfectly before and since. It was only this one brief
section of one leg of the flight. Of course, it really gets your
attention when your display goes all dashes, and the computer says
"GPS Wait".

Anyone else had an "encounter" like this?

Just curious

Steve Leonard
Nimbus 3 VJS
i know it is really cool with a cell phone jammer, you can do what you want to do anytime without noises, i have got one from my friend introduction the website is http://www.jammerall.com. help me a lot, share with you if you need, experience a different life.
 




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