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Circuits Found: 54
High Power Portable TV and FM Jammer circuit

There are still neighbors that keep annoying you by having loud the TV or the radio? Well I have you the solution. In fact all neighborhood will face your jamming waves at their TVs and radios, so be careful. This Jammer is the improved version of the old "TV and FM jammer schematic" with the difference of much higher power. Many of you where asking for a stronger and wider effect but to be as portable as can be. Looking at the schematic you can see that, only the.....


Views: 16 | Votes: 1 | Comments: 0 | Rating: 7 | Rank: 9 | Added: May 21, 2013 |
High power mobile phone Jammer circuit

If we are speaking about professional Cell phone Jammers we are talking about this schematic below. First off all you should be very careful how to use this device. Its fully illegal and so the purpose I post this Circuit is only for educational and testing reasons. This type of device is being used by security for VIPS, specially at their limousines to avoid bomb triggering while the car passes from the target cell phone-bomb. Offcourse there are those who use it to make.....


Views: 2398 | Votes: 8 | Comments: 0 | Rating: 8.125 | Rank: 10 | Added: Mar 29, 2013 |
TV and FM jammer schematic

The Jammer is a very small circuit and can fit inside a small plastic box with 9V battery inside. It can be very illegal if you attach an external antenna so don't. adjust frequency by turning trimmer. It is intended only as a practical joke device. The Capacitor is 6-10pf air capacitor and the transistor used here is the 2n2222. ..


Views: 743 | Votes: 5 | Comments: 42 | Rating: 9.6 | Rank: 10 | Added: May 13, 2012 |
no image available GPS receiver

This GPS receiver is powered by 2 AA batteries. They are only strong enough for the GPS to stay on for about two hours, and this seems like quite a waste. I would like to be able to use a larger battery, and sometimes even an AC adapter...


Views: 2442 | Votes: 31 | Comments: 1 | Rating: 9 | Rank: 0 | Added: Mar 28, 2013 |
Car Controller using PIC16F870

Our present car controller runs on a single PIC16F870 micro and provides functions for remote door locks, headlight reminder, and car finder. It is constructed using wire-wrap to allow for future expansion and is mounted using Velcro on the passenger side of the center console. The downside of this design is that changes to the system require a lot of work for removal, rewiring, reprogramming, and reinstalling. It could also be stolen which would be a major bummer -.....


Views: 5329 | Votes: 18 | Comments: 0 | Rating: 6 | Rank: 0 | Added: Mar 27, 2013 |
GPS Jammer with PIC16F870

GPS trackers as GPS vehicle tracking and person monitoring tracking can be used in a good way but sometimes they are used in bad way. These tracker units monitor the exact location of you, and then deliver that information to a second part. If you don’t want your location is track able then GPS jammer will take care of that...


Views: 2292 | Votes: 54 | Comments: 0 | Rating: 1 | Rank: 0 | Added: Mar 20, 2013 |
no image available GPS Data Interconnect

For the Garmin 45, GPS II, and some other Garmin units, there is a set of power & data connector/harnesses available. (Ham Radio Outlet and West Marine sell one cable only for $40, or the cable & cradle for $65, approximately.) However, the leads are long. Rather than cutting them down for our use, we recommend preparing the end according to the specification shown below, and then coiling the excess cable...


Views: 2404 | Votes: 42 | Comments: 0 | Rating: 9 | Rank: 0 | Added: Mar 19, 2013 |
no image available PC Based GPS

The advent of new high-speed technologies and the growing computer capacity provided realistic opportunity for new cost effective technologies and realization of new methods of innovations. This technical improvement together with the need for high performance techniques created faster, more accurate and more intelligent products using new drives and advanced control algorithms...


Views: 1524 | Votes: 90 | Comments: 0 | Rating: 6 | Rank: 0 | Added: Mar 16, 2013 |
no image available My GPS LCD Display Project

This is a project that I started back late 2003 when I just starting to learn PIC programming. I wanted to building something that actually did somthing useful. This project is based on a PIC16F84. I actually came up with this idea and then after doing some searching I found that a few people had the same idea. But, I wanted to build my own that I could call mine, developed by me...


Views: 1077 | Votes: 77 | Comments: 0 | Rating: 6 | Rank: 0 | Added: Mar 10, 2013 |
Phone Jammer linear amplifier

RF Power Amplifier 1 Watt. Jams Cellular Downlink Band: 800-950 MHz...


Views: 5112 | Votes: 26 | Comments: 0 | Rating: 9 | Rank: 0 | Added: Mar 9, 2013 |
Infrared Remote Control Jammer circuit

The IR Jammer is a fun project that provides a bit of safe, non-destructive fun. The Infrared Remote Control Jammer allows you to render all IR remote controls inoperative! The microcontroller in this design allows for all 6 of the main IR frequencies to be targeted making this unit universal. It works by corrupting the data that is being sent by your normal remote controls. A single press of the button sends out stream of IR pulses from the two narrow beam and two wide.....


Views: 4994 | Votes: 80 | Comments: 0 | Rating: 9 | Rank: 0 | Added: Mar 5, 2013 |
Function Generator Sine / Triangle / Square / Saw ( PIC16F870 )

After the recent demise of our multifunction signal generator, we decided to make one of our own. The circuit uses a PIC16F870 (about $3), an R/2R resistor ladder network (for a real fast and cheap D/A), and a few other parts. You can check out the schematic and the current source file. Also the object (hex) file. All of the sine wave functions utilize a full 256 byte by 8 bit lookup table. Contrary to what you may have heard elsewhere, it is possible to use a full.....


Views: 415 | Votes: 55 | Comments: 0 | Rating: 5 | Rank: 0 | Added: Feb 15, 2013 |
Cell phone signal jammer

The working principle of mobile phone jammers, the circuit structures are figured out. Electronic lovers, just to find out later works can be arbitrary, and then look at the design and also make a try, very easy to use, special write this article the design of the production process will tell my friends who are interested. Works with the sawtooth control voltage controlled oscillator, so that the work generated frequency sweep signal, each sweep cycle, equal to the work.....


Views: 5592 | Votes: 41 | Comments: 0 | Rating: 7 | Rank: 0 | Added: Feb 14, 2013 |
FM PLL transmitter 88-108MHz with PIC16F870

This transmitter is PLL controlled and the frequency is very stable and can be programmed digitally. The transmitter will work from 88 to 108 MHz and the output power is up to 500mW. With minor changes the frequency can be set from 50 to 150 MHz. The main oscillator is based around the transistor T1. This oscillator is called Colpitts oscillator and it is voltage controlled to achieve FM (frequency modulation) and PLL control. T1 should be a HF transistor to work well, but.....


Views: 3964 | Votes: 104 | Comments: 0 | Rating: 2 | Rank: 0 | Added: Feb 8, 2013 |
no image available 1.575 GHz GPS WITH µPC8211TK, µPC8215TU, & µPC8226TK

The µPC8211TK, µPC8215TU, and µPC8226TK are silicon germanium (SiGe) microwave monolithic integrated circuits (MMIC) designed as low noise, high-gain amplifiers for GPS and mobile communications. These ICs are manufactured using our 50 GHz fmax UHS2 (Ultra High Speed Process) SiGe bipolar process. The use of these three devices in evaluation boards implementing LNAs (Low Noise Amplifiers) at 1.575 GHz GPS is described in this document...


Views: 2647 | Votes: 109 | Comments: 0 | Rating: 7 | Rank: 0 | Added: Jan 31, 2013 |
Backup Power System with PIC16F870

The PIC16F870 keeps track of battery voltage as well as both charging and discharging currents. It also drives the 4 digit display, and switches the AC and load relays. The basic operation is as follows: While AC power is available, the battery voltage is constantly monitored and topped off as needed. When the AC power fails, the load relay engages the 12-volt system. This connects to lights, fans, and other 12 volt devices as needed. Should the battery voltage fall.....


Views: 170 | Votes: 12 | Comments: 0 | Rating: 5 | Rank: 0 | Added: Jan 29, 2013 |
A Perfect Jammer

This is a simple add-on adapter for any Family Radio Service (FRS), amateur, or two-way radio transceiver with a microphone/Push-to-Talk (PTT) and external earphone/speaker interface. It will turn the transceiver into a co-channel jammer. That is, a jammer which can only jam a single frequency upon the detection of any "activity" on that particular frequency. This type of circuit is also commonly referred to as a Carrier Operated Relay (COR). This is the perfect type.....


Views: 2742 | Votes: 87 | Comments: 0 | Rating: 1 | Rank: 0 | Added: Jan 23, 2013 |
no image available Diagram description GPS support kit

The GPS interface can be fed in 2 ways: with a stabilized 5V supply or with a 10 to 25V unregulated DC supply. In both cases the power is fed into the RJ45 connector on point 8. Pin 7 is DC ground. The power supply current is first secured with a slow 315mA fuse (in socket). Then there is a Transzorb device to ground. This device is a short-circuit for reverse polarity voltages and for voltages above 27V. It causes the fuse to blow and in doing so, protecting the.....


Views: 3679 | Votes: 39 | Comments: 0 | Rating: 1 | Rank: 0 | Added: Jan 20, 2013 |
Remote Control Jammer

This circuit confuses the infra-red receiver in a TV. It produces a constant signal that interferes with the signal from a remote control and prevents the TV detecting a channel-change or any other command. This allows you to watch your own program without anyone changing the channel !! The circuit is adjusted to produce a 38kHz signal. The IR diode is called an Infra-red transmitting Diode or IR emitter diode to distinguish it from a receiving diode, called an IR.....


Views: 4255 | Votes: 32 | Comments: 0 | Rating: 1 | Rank: 0 | Added: Jan 15, 2013 |
IR Remote Control Jammer

Don't like your little brother's TV channel selection? Hate the volume your wife sets the stereo at? Want to just annoy someone? This circuit does all that and more by jamming most IR remote signals. The circuit releases a flood of pulsing IR light that confuses the reciever by corrupting the data stream...


Views: 965 | Votes: 28 | Comments: 0 | Rating: 4 | Rank: 0 | Added: Jan 12, 2013 |
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