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An Introduction to Jammers

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Interference causes disturbance in wireless communication. Jamming an antenna is all about interference with wireless communications. – PowerPoint PPT presentation

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Title: An Introduction to Jammers


1
An Introduction to Jammers
Interference causes disturbance in wireless
communication. Jamming an antenna is all about
interference with wireless communications. A
jammer antenna is a kind of antenna used in
creating interference with radio signals or
noise. This interference is created to stop the
battle of the antennas. A military jammer
antenna is used to radiate interference in the
signals of the opponents radar. It also blocks
the receivers signals with higher levels of
energy signals. In this blog, we will discuss
jammer, how it works, its benefits, and the
special features of jammer antenna. What is
Jammer?
2
  • We discussed a few things in the above section
    related to jammers. Now, let us have a detailed
    study on the jammer. A jammer is a kind of
    device that helps to block signals from reaching
    someone. Jammers come in various types such as
    cell phone jammers, handheld jammers, or radar
    jammers.
  • This device is used in several electronics and
    communication devices. There are different kinds
    of jamming used for various purposes. From cell
    phones to GPS receivers, jammers are widely used
    in many devices.
  • Different kinds of jammers
  • Jammers come in different types. It is necessary
    to know the different kinds of jammers to know
    their functions and benefits. Read on to know
    the various kinds of jammers to understand their
    features
  • GPS jammers
  • GPS jammer is a special kind of Jammer Antenna
    that helps to stop the transmission of location
    tracking service. It comes in different shapes
    and sizes. GPS jammer is a kind of standalone
    jammer that is very small. However, a GPS jammer
    can work only in a small area. It cannot be used
    for large vehicles.
  • Cellphone jammers
  • The next kind of jammer is a cellphone jammer. It
    can be used in blocking signals of every mobile
    phone. Cellphone jammers stop different
    frequency bands like CDMA, 3G, GSM, and 4G.
    Cellphone jammers come in small or large sizes.
    Short-range jammers are very small whereas
    larger jammers are very powerful and high-end
    models.
  • Internet jammers

3
  • Internet jammers can stop the transmission of
    devices with internet service. You can use an
    internet jammer in Wi-Fi routers and Bluetooth.
    It is one of the safest jammers to use in
    different internet-like devices to stop
    transmission. Moreover, these jammers protect
    your data from hackers and maintain its privacy
    as well.
  • Types of jamming techniques
  • Jamming techniques are of 2 kinds namely noise
    techniques and repeater techniques. Some of the
    most popular types of noise techniques include
    sweep jamming, spot jamming, and barrage
    jamming. On the other hand, DRFM jamming is a
    type of repeater jamming. Let us have a look at
    the types of different jamming techniques in
    detail
  • A. Noise Techniques
  • Under noise techniques, there are 3 kinds of
    jamming techniques such as
  • Spot jamming
  • Spot jamming is a type of noise technique in
    which the jammer focuses all power on a single
    frequency blocking the signals of frequency-agile
    radar.
  • Barrage jamming
  • The next jamming technique in a high jammer
    antenna is barrage jamming. It is a technique of
    jamming many frequencies with one jammer.
    Barrage jamming is not as powerful as other kinds
    of jamming techniques.

4
  • Sweep techniques
  • Another type of noise technique in an anti-jammer
    antenna is the sweep technique. It is a process
    of shifting the power of jammers from one
    frequency to another. It can jam multiple
    frequencies speedily at different times.
  • B. Digital Frequency Radio memory or DFRM
  • This is a kind of repeater technique that alters
    and re-transmits received radar energy. It is
    used widely in different kinds of jamming
    antennas.
  • Benefits of using jammers
  • A jammer is a kind of device that blocks signals
    in the opponents signals. It comes in different
    shapes, sizes, and patterns. Some of the major
    benefits of military manpack jammer antenna are
    as under
  • Protection from location tracking
  • One of the biggest problems at different places
    is location tracking. We cannot avoid the
    problem of location tracking quite often. GPS
    tracks your location every time. During these
    times, you can use a jammer and block signals.
    It can effectively stop GPS transmission and
    protect your data from hackers.
  • Good for banks and educational institutions
  • Today, a jammer is used in many educational and
    financial institutions. It can stop cheaters and
    hackers to hack your data. Jammers also jam
    signals and protect data.
  • Stop spying and bugging attempts

5
  • Another benefit of using a jammer in the Yagi
    antenna is that it stops spying and bugging
    attempts. You can stop someone from snooping by
    attaching a jammer in a UHF antenna. Jammers are
    simple to use for FTS antenna and different
    types of antennas. They are also cost- effective
    and help to block the bugs receiver and prevent
    it from getting commands.
  • Reduce the use of cellphones
  • Jammers are widely used in prison to reduce the
    use of cell phones. They are attached to the Vhf
    antenna at many places. Cellphone jammers in
    High Gain ATC Antenna help to reduce unwanted
    mobile calls. They also reduce illegal
    activities by reducing cellphone calls.
  • Things to consider while buying a jammer
  • While purchasing a jammer for High Gain Helical
    Antenna, you must keep in mind certain things
    such as
  • Size
  • The first thing to look at while buying a jammer
    is the size. If you want a jammer for a small
    area, choose cellphone jammers. On the other
    hand, you must pick the desktop models if you
    want to jam the signals for a long time in a
    larger area.
  • Cost of jammer
  • The next thing to look at while buying a jammer
    is the cost. Cheap jammers can block mobile
    phone signals. They work on batteries and cost
    between 30 and 60. Apart from that, the cheap
    jammers will also cover a small area.

6
  • If you want a high-quality jammer, choose pro
    models. These jammers cost around 500 and can
    block every type of signal such as Radio
    communication, Cellular, and so on.
  • Installation
  • Some jammers come assembled while some jammers
    contain accessories to assemble. You can choose
    any jammer according to your need.
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