This also Not a Cell phone jammer. Jamming a Cell phone is similar on its principle, but totally a different build, you need a range from 800MHz to 900MHz. You need an OP amp and a few other parts and formulas The Radio Jammer sends out a EM wave at a frequency. The wave is then broadcast throughout an area. Radios will receive this wave (when tun
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ed to that frequency) and It will block the other wave that is broadcast from a station. An Oscillator, The heart of the Radio Jammer. The frequency you choose will be the frequency you jam. FM radio is in MegaHertz. Example, If you want to block 100. 0, then use a 100Mh Oscillator. It may be a bit confusing. I have a 97. 7 MHz that says 97M70000 and a 50 MHz that says 50. 0000 MHz. Could you use the original battery for the phone so you can just charge it over and over as well as the original antenna (Im thinkin of going with a 125 oscillator. That depends on power, frequency, harmonics and carrier. There are a number of factors. Overall if you are pumping enough power into the air on the same frequency or on a harmonic of the same frequency it is likely you could jam the channel. Also for all of you who asked, remember that an oscillator is simply a inductor and capacitor in its more basic form. What I would do is take a look at the construction of basic oscillators, stepper generators and radio jamming during times of war. For all intents most radio jamming is simply producing a signal on the same frequency that you want to jam at a higher power with more noise. AKA if you are trying to block a voice signal a good way to do it would be to copy several voices on a tape and send that as a signal. Nice instructables but oscillator is kinda hard to find. I got circuit here claims that can do the same. radio jammer, dont know...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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