Previous in Forum: dsp   Next in Forum: Microcontroller Programming
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
3 comments
Rate Comments: Nested
hussainv1
Participant

Join Date: Jan 2008
Posts: 2

Cellphone Jammers!

01/15/2008 4:08 AM

Hey,

I want to do my final year project on cellphone jammers where i want to block mobile calls except emergency calls like eg: 911

can anyone give me any Idea about the schematics and circuit diagrams for it.


Thanks!
Register to Reply
Pathfinder Tags: call block cellphone jammers schematics
This discussion was "closed" on 01/15/2008 8:33 AM. No new comments are allowed.
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#1

Re: Cellphone Jammers!

01/15/2008 4:15 AM

This topic comes up regularly on CR4, as does the answer that it would be illegal to operate such a piece of equipment in the UK.

The best that can be done is to establish Faraday Cages within buildings and vehicles, within which the blasted things cannot be used.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
hussainv1
Participant

Join Date: Jan 2008
Posts: 2
#2
In reply to #1

Re: Cellphone Jammers!

01/15/2008 4:26 AM

Thank you!

yeah i understand it may be illegal in your's and many other countries but here in India it is widely used be it theatres,religious places,et al..also i have joined this forum just now and i dint realise that there are already posts on this topic.sorry for imposing same topic on you :)..anyways its a great place to hangout

can anybody give me some idea about the schematics and circuits for it!

regards,

hussain
Register to Reply
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#3
In reply to #2

Re: Cellphone Jammers!

01/15/2008 6:16 AM

<....in India it is widely used be it theatres,religious places,et al.....>

How abstruse.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Register to Reply
Have a Different Question?
3 comments
This discussion was "closed" on 01/15/2008 8:33 AM. No new comments are allowed.

Previous in Forum: dsp   Next in Forum: Microcontroller Programming
You might be interested in: Emergency Call Systems, Emergency Stop Switches

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Communications & Electronics:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (96 right now)
Show Members
Advertisement