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55 Threads found on Gsm Jammer
can anybody tell me where to find the theory and schematic of a gsm jammer.
hii everybody i am making now my graduation project and i wanna to make a gsm jammer.anybody know how to get any information about this project.if anybody has files for that plzz help me because it's really a nice prject. thanks if anybody wanna send any files or something plz u can send on my mail and i will b
How about the design and construction of gsm jammer. i actually don't think many pple over here know about it. so if i can get a quality information on it ,i will really appreciate it.
Friends i need your help in the construction of DOWNLLINK gsm jammer FOR 1800Mhz(DCS),i need the circuit diagrams and required information. Thanks in advance
I m working on my project on the contruction of downlink gsm jammer for DCS (1800Mhz). kindly guide me for the purpose & i need the required Circuit diagrams for its construction thanks.
hi 5 schematics for gsm jammer post result if making one goodluck
hi there......if you have a gsm jammer circuit design then can you please provide me with uploading it or emailing me at be very greatful
hello every1. i am doing a project on dual band gsm jammer. i need complete circuit diagrams and if possible matlab simulation for it. plz help its urgent!
a. Develop a miniture device which can cover an area NOT MORE THAN 3 to 5 Meters only and sense if any gsm jammer activity which is hampering gsm Sim communication. (this distance should ONLY be limited to 3-5 Meters as otherwise, it will pick up wrong and false Jamming surrounding signals. b. This miniture device will be fitted and used (...)
it will not work. i have tested and try it before. it is better you should not suffer yourself. gsm jammer does not work with far distance. i also changed my design using 8051 microcontroller. Hello everyone, It's my first post so kindly ignore the noobie mistakes. . I am designing a Dual Band gsm jammer as my majo
hello i am called Rugema Alain, I am a student in national university of Rwanda. i am working on final project called "method of avoiding call reception using a gsm jammer". i faced a problem with a noise generator, i used a zener diode (6.8V) but it is practically give me no result. can you plz help me to get a noise generator. [url=http:/
To do it with CDMA you need approx 20 dB more power as for gsm for the same distance, but if you want to do it in your room... (but it is illegal, too) In case that you use narowband signal for jaming, indeed you need 20dB more power. If you use jaming signal with bandwith comparable with CDMA signal you didn't need more power. T
Hi Can anybody help me getting a gsm jammer circuit which cover the band of 800/1900 MHz For your information, this circuit is used in the safety of some industrial applications thnx for your trouble Do a search on the EDA Board some time ago I recall someone posting such a schematic,however it was never said
Hi, Would you send me complete schematic for working circuits of: gsm jammer in 200 m2 space? or it can detect any gsm handset in this space?
i hv problem while making gsm jammer i m not getting ic max 2623 which is basically vco n opam mar4sm and pfo8103a these ic s r not avaiable in market so plz help me out Added after 16 seconds: as soon as possible reply back to me Added after 15 seconds: just i need
there are many circuits that are floating on the web. If you are new to RF circuity then I strongly suggest you stay off building such things as it is not easy to work with and even the slightest change in the board that you use will tune-out the device etc. I am no
i have a project on gsm jammer which i would like to sell.... it works perfectly fine for gsm networks and i haven't tested CDMA networks on it... if anyone from mumbai is interested in buying it can mail me at Added after 2 minutes: i have a project on gsm jammer
hi all i want to make one circuit to stop gsm cell phones around me making calls like increase the noise or any thing else just 4 fun thank
i m nw doing a project on new applications of gsm ....i need some study material ......
Hi there, I have been conducting research on jammers (wideband) including gsm, DCS, PCS, GPS, Bluetooth, etc. (Mainly from 60-2500 MHz) for the past one year. If you have any problems contact me in spscific at :)
check these topics, these will be very helpful, gsm jammer cell phone jammer Matlab code for Cell Phone jammer Cell jammer Schematic mobile phone jammer
Hello Guys!!:razz: . I have done gsm 900MHz jammer now I am designing "Dual Band gsm jammer" as final y00MHzear project for my Engineering. This jammer will jam gsm 900MHz as well as gsm 1800MHz. But I have a problem in output of 1800MHz, I used: CVCO55BE for 1800MHZ (...)
normally mobile fones are built in assesment of carrier frequency gsm 900 works on different frequency and 1800 (1890-1990MHZ) so there is obivious reason if ur jammer is not wide band then ur fone will work on any available band. best regards zamir
hi, I was testing a low power gsm jammer. I made it from the design available on internet. I found that it can jam mobile networks within 10 meter range. But if a call is already established and the caller comes near jammer the call does not disconnect. is there any problem with sweep rate or more power is requred to drop an established call?
One irrelevant question, what will happen if someone turn on gsm Jamming device ? They need to pay or energy is free for all ? ;-)
Iwould like to build a device that could jam, break a gsm call. A short range 2-4m RF transmitter able to disturb (break up) a phone call. Any one seen a thing like this? Any one has an idea on how to design one? Thanks!
We have tried that method ro jame gsm (1800MHz and 900 MHz). It can jame up to 50m indoor with 3 watts PA. You might try a bigger amplified if you need more range
i have built my owen mobile jammer i used a sawtooth generator and shifting aplifier and feed it through VCO The VCO used is POS 1060 and there is some one is better in MINICIRCUITS that work in the gsm band only and this will not need level shiftre to get the required baned nedded
Hi guys, I met a problem with adjacent channel rejection failed in GMSK modulation for EDGE mode while pass for gsm mode. Many points that I would check, but one of them would be only adjustable by me, RF system worker, is to change AGC/Front-end gain plan. I'm wandering this way would made noise difference by lowering front-end gain whi
as there is boom for 3g and 4g. so u should de a research based project in WCDMA which is the advance version of current gsm. 1-OFDMA channel codding 2-study of 3G and 4G technology. 3-Memo Channel Codding 4-interconversion from 2.5G to 4G 5-implimentation of WiMAX. 6-Wimax channel codding. 7-CDMA and gsm roming and handoff (one of the hot
Hi all, I am doing a project where I need a VCO that can generate: DCS (1800 Mhz) for the implementation of downlink gsm jammer. any help would be highly appreciated.
the gsm is hard -the jammer will be hard too
Can Any one help in project to build a silencer (jammer) for gsm and CDMA systems either using some existing mobile phone or from the geginning. This is for a good porpuse (silence in worship places - mosques) Thanks in advance for help
I am basically working on dual band Cell phone jammer. I will jam two gsm bands i.e; gsm 900 & gsm 1800. It will cosists of two parts: 1)IF section 2)RF section In the IF section following components will made; a)Triangular wave generator (Sweep generator) b)Noise generator c)Mixer d)Clamper RF section contains (...)
I am basically working on dual band gsm jammer,i.e; gsm 900 & gsm 1800. But in RF section i am not able to find VCO ICs. CVCO55BE; this is for gsm 1800. The output frequency is 1785-1900 MHz and the output power is up to 5 dBm. CVCO55CL; this is for gsm 900. The output frequency is (...)
am basically working on dual band gsm jammer,i.e; gsm 900 & gsm 1800. But in RF section i am not able to find VCO ICs. CVCO55BE; this is for gsm 1800. The output frequency is 1785-1900 MHz and the output power is up to 5 dBm. CVCO55CL; this is for gsm 900. The output frequency is (...)
I am basically working on dual band gsm jammer,i.e; gsm 900 & gsm 1800. But in RF section i am not able to find VCO ICs. CVCO55BE; this is for gsm 1800. The output frequency is 1785-1900 MHz and the output power is up to 5 dBm. CVCO55CL; this is for gsm 900. The output frequency is (...)
how to overcome frequency hoping which is the protection scheme used in gsm, to make a gsm jammer
Hi, im looking for even one datasheet of these are 3 VCO for a portable mobile phone jammer: -VCO for CDMA/gsm -> code KC DDC1748F 0105 (12pin) -VCO for 3G -> code 40EB A038 (8pin) -VCO for DCS -> code 9P3-1880 D020 (8pin) Actually they are supplied with 4V and Im looking for
Hello everyone, I'm doing the project of gsm900 jammer project. I need a circuit instead of the RF amplifier and RF power module. Can anyone hepl me to complete it? If you help me I'll be great full.
I tried to design monopole antenna for 900MHz using HFSS. My antenna dimensions are Radiator length 90mm Radiator radius 0.5mm Dielectric radius 1.2mm Simulation gives me antenna impedance of 79ohm with some inductive part. Do i need to match the antenna impedance to 50 Ohm. When i connect the antenna to VECTOR NETWORK analyzer
Dear Samar Raza, Have u succeed in making such curcuit, please share if you have some positive response. i am also working on the same. ---------- Post added at 15:42 ---------- Previous post was at 14:38 ---------- Dear u are right, but when the vehicle is snatched on gun
hi guys i want to make a gsm signal jammer but my probem is that its some components or not easyily available from local market. may u suggest a circuit which is cheep and its components or easily availabale also
Kindly share working circuit diagrams for mobile jammer to use in Pakistan, gsm900,gsm1800.
U can jam mobile phones by generating a RF wave with noise modulated in it. This RF wave frequency should be same as that of the mobile phone downlink frequency. I once repaired a gsm mobile phone jammer unit and it worked on the same concept. These units have a range of 100-150 feet max(for use in movie theatres concert halls, hotels,hospitals,...
Hi mutevagil, The keyword to that is "CELLULAR PHONE jammerS" or simply "gsm jammerS" goodluck
Hi, I am a new member. I wanna work on anti jammer for gsm + GPS jammers. How we can produce anti jammer for jammer of gsm & GPS signals. Pl. give me some hints. I wanna save the tracker devices from jammers. Thanks
Search "gsm and jammer" in the forum. You will get a lot of useful information.