Gsm Jammer |
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79 Threads found on edaboard.com: Gsm Jammer
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
Hobby Circuits and Small Projects Problems :: 02.03.2005 10:42 :: Moss :: Replies: 70 :: Views: 60476
can anybody tell me where to find the theory and schematic of a gsm jammer.
Hobby Circuits and Small Projects Problems :: 27.06.2006 14:00 :: oozmaq :: Replies: 6 :: Views: 2964
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
Hobby Circuits and Small Projects Problems :: 10.10.2006 01:06 :: dodo85 :: Replies: 5 :: Views: 1243
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.
Digital communication :: 18.10.2006 16:06 :: facon :: Replies: 2 :: Views: 1314
Friends i need your help in the construction of DOWNLLINK gsm jammer FOR 1800Mhz(DCS) band.so,i need the circuit diagrams and required information.
Thanks in advance
Hobby Circuits and Small Projects Problems :: 24.04.2007 18:38 :: RaihanBashir :: Replies: 0 :: Views: 1082
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.
RF, Microwave, Antennas and Optics :: 06.06.2007 13:10 :: RaihanBashir :: Replies: 4 :: Views: 4459
hi
5 schematics for gsm jammer
post result if making one
goodluck
Digital communication :: 01.09.2007 19:53 :: sabtun :: Replies: 3 :: Views: 1286
hi there......if you have a gsm jammer circuit design then can you please provide me with uploading it or emailing me at mr_yes_luvu@hotmail.com....thanx.......wil be very greatful
RF, Microwave, Antennas and Optics :: 10.05.2008 15:39 :: arsi15 :: Replies: 1 :: Views: 1321
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!
Digital communication :: 15.09.2008 18:41 :: alisha :: Replies: 2 :: Views: 1450
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 faisal_m786@yahoo.com
:)
Hobby Circuits and Small Projects Problems :: 03.08.2009 23:24 :: faisal_m786 :: Replies: 10 :: Views: 6206
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 (...)
Hobby Circuits and Small Projects Problems :: 23.10.2011 19:23 :: farrukhwaheed :: Replies: 1 :: Views: 742
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
Professional Hardware and Electronics Design :: 11.02.2013 15:56 :: akanbilukman :: Replies: 3 :: Views: 314
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:/
Electronic Elementary Questions :: 05.04.2013 11:36 :: rugemalain :: Replies: 1 :: Views: 72
Very interesting communication on the topic...
Shielding is what is ideally done for such applications coz jammers are sure to effect nearby buildings also.
Various companies get their microwave testing rooms/labs also shielded so that common use devices using gsm, WLAN, Bluetooth etc are not affected by the signals radiating from the lab...
RF, Microwave, Antennas and Optics :: 22.07.2004 09:06 :: vagarwal :: Replies: 18 :: Views: 5693
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
Hobby Circuits and Small Projects Problems :: 13.08.2008 10:49 :: stratovirus00 :: Replies: 14 :: Views: 38655
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
Hobby Circuits and Small Projects Problems :: 08.04.2005 07:01 :: Henrico :: Replies: 5 :: Views: 1717
Be careful a guy here in the UK was sent jail and had all is equipment taken for making these.
The gsm service providers are very hot at finding people who make or market these.
Professional Hardware and Electronics Design :: 22.12.2006 14:21 :: darksky041257 :: Replies: 164 :: Views: 77694
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?
Digital communication :: 20.05.2006 15:08 :: Smart :: Replies: 1 :: Views: 1164
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
Digital communication :: 21.06.2007 13:35 :: stefansandy4u :: Replies: 1 :: Views: 707
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
Software Links :: 25.06.2007 16:12 :: kishore2k4 :: Replies: 11 :: Views: 3112
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
Hobby Circuits and Small Projects Problems :: 13.08.2008 10:59 :: stratovirus00 :: Replies: 10 :: Views: 3981
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
Digital communication :: 09.03.2008 20:47 :: ayemen :: Replies: 3 :: Views: 401
dear what type of aspplication material do u required, as i have 100 of seimens gsm e books.... but its difficult for me to sort out them....
be specific and i hope i could upoad one for u
Digital communication :: 13.09.2008 00:15 :: Rf engineer :: Replies: 4 :: Views: 2119
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
Other Design :: 28.11.2009 17:56 :: hanif :: Replies: 2 :: Views: 5114
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 (...)
Hobby Circuits and Small Projects Problems :: 14.12.2010 18:41 :: Taimoor_ali :: Replies: 3 :: Views: 2970
Read this it will help you
Digital communication :: 09.06.2012 12:24 :: faisalengr :: Replies: 1 :: Views: 232
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
Digital communication :: 29.07.2012 10:01 :: zamir :: Replies: 2 :: Views: 307
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?
RF, Microwave, Antennas and Optics :: 23.10.2012 08:02 :: adnan012 :: Replies: 0 :: Views: 104
One irrelevant question, what will happen if someone turn on gsm Jamming device ? They need to pay or energy is free for all ?
;-)
Microcontrollers :: 01.03.2013 18:06 :: tpetar :: Replies: 31 :: Views: 752
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!
Hobby Circuits and Small Projects Problems :: 10.04.2003 22:34 :: solvarg :: Replies: 5 :: Views: 2681
HI
1. YES U CAN DO IT
2. ITS ILLEGAL IN MOST COUNTRIES AND NOT LEGALLY COVERED IN A FEW STATES.
NE WAYS WORTH FOLLOWING...
A. GENERATE SQUARE WAVE
B. CONVERT INTO A SAW TOOTH WAVE.
C. FEED IT TO A VCO OF APPROPRAITE FREQUENCY RANGE AS PER gsm FREQ RANGE USED IN UR AREA.
D. INPUT TO
RF, Microwave, Antennas and Optics :: 18.01.2007 19:10 :: xakker :: Replies: 3 :: Views: 3479
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
RF, Microwave, Antennas and Optics :: 21.09.2005 16:38 :: boy :: Replies: 5 :: Views: 1736
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
Digital communication :: 25.06.2006 11:40 :: ramifaisal82 :: Replies: 12 :: Views: 2275
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
RF, Microwave, Antennas and Optics :: 25.08.2006 02:31 :: Wilson_yu_chen :: Replies: 2 :: Views: 774
Hai, It not easy to make a cell phone jammer for CDMA/gsm and DCS (Tri band)
You must have solid experience in the RF circuits and need equipment like spectrum analyzer, VSWR meter, Impedance analyzer etc. Dont worry, i have very good quality Tri band cell jammer circuit with assembled tested kit with all technical details. The effective (...)
Hobby Circuits and Small Projects Problems :: 06.06.2007 13:21 :: mdcl :: Replies: 9 :: Views: 2208
hi everyone,
i am new to this wonderful forum and i love it ....
anyway , i hope anyone could help me with an idea for my graduation project ...
i want to do the project in the field of communication .... i have some background knowledge on gsm and CDMA .... and i am willing to proceed in this field ....
so any ideas people ? ..... i w
Digital communication :: 03.10.2006 05:53 :: ahmed_nasr :: Replies: 14 :: Views: 7029
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
Digital communication :: 27.03.2007 06:39 :: Virus King :: Replies: 3 :: Views: 1210
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.
RF, Microwave, Antennas and Optics :: 25.04.2007 08:04 :: zeeshanzia84 :: Replies: 2 :: Views: 1711
Spread spectrum CAN be jammed in case when you have a much stronger signal, and perform a quick frequency shifting over a whole band. That is (basic) principle of operation of i.e. gsm jammer or similar circuits.
Dear,
gsm is not a spread spectrum technique.
secondly, SS data is very difficult to be eavedropped, you are
Electronic Elementary Questions :: 11.07.2007 13:39 :: Naveed Alam :: Replies: 9 :: Views: 1287
the gsm is hard -the jammer will be hard too
Software Requests :: 07.06.2008 18:41 :: picavr :: Replies: 8 :: Views: 631
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
Digital communication :: 26.02.2008 15:31 :: maq3 :: Replies: 0 :: Views: 545
Hi everyone....
I'm using a Siemens C35 as a gsm modem to send and receive SMS. I have the data cable and the phone is working properly. I have referred to previous threads but with the settings mentioned in those articles, this phone doesn't seem to be working.
Settings are:
Baud rate : 19200bps
Data bits : 8
Parity : none
Stop bits : no
PC Programming and Interfacing :: 29.04.2008 04:06 :: thilan :: Replies: 3 :: Views: 824
I am working on Dual band gsm jammer, gsm 900 & gsm 1800.
I need matlab simulation for this jammer. PLz provide me matlab codes for this plz.
Digital communication :: 10.09.2008 15:06 :: Adil Israr :: Replies: 20 :: Views: 11936
Any one has the idea how to implement Dual band gsm jammer in Matlab Simulink.
Bands are: gsm 900 & gsm 1800.
Analog Circuit Design :: 24.09.2008 07:19 :: Adil Israr :: Replies: 9 :: Views: 25266
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 (...)
Professional Hardware and Electronics Design :: 11.09.2008 14:42 :: Adil Israr :: Replies: 8 :: Views: 5960
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 (...)
Professional Hardware and Electronics Design :: 13.09.2008 14:24 :: Adil Israr :: Replies: 0 :: Views: 960
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 (...)
Professional Hardware and Electronics Design :: 14.09.2008 14:32 :: Adil Israr :: Replies: 2 :: Views: 1248
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 (...)
Digital communication :: 24.09.2008 14:06 :: Adil Israr :: Replies: 2 :: Views: 742
how to overcome frequency hoping which is the protection scheme used in gsm,
to make a gsm jammer
Hobby Circuits and Small Projects Problems :: 16.09.2010 08:16 :: aqib :: Replies: 0 :: Views: 880
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
Digital communication :: 15.04.2011 21:22 :: axxe :: Replies: 1 :: Views: 2011
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