Previous in Forum: Electic Solar Units   Next in Forum: Clothes Hanger Television
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
5 comments
Rate Comments: Nested
shantanu
Participant

Join Date: Jan 2008
Posts: 1

mobile phone

01/11/2008 11:42 AM

how mobile phone works?

plz give me discription with circuit diagram if posibal.
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
user-deleted-1105
Guru
Popular Science - Weaponology - New Member United Kingdom - Member - New Member

Join Date: May 2007
Location: Harlow England
Posts: 16512
Good Answers: 670
#1

Re: mobile phone

01/11/2008 11:56 AM

Can't give a meaningful cct dia as they are full of custom chips.

How it works? Radio waves transmitted and received ....

The question is too broad for a meaningful answer.

__________________
 health warning: These posts may contain traces of nut.
Register to Reply
Zaphod2Headed
Power-User

Join Date: Nov 2007
Location: Alberta Canada
Posts: 182
Good Answers: 9
#2

Re: mobile phone

01/11/2008 12:25 PM

without a cord!

__________________
 Vote for something useful this time, vote to repeal the second law of thermodynamics!
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

Re: mobile phone

01/14/2008 3:52 AM

Irritatingly, to those within earshot and not taking part in the call.......

__________________
 "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
Hendrik
Guru
Popular Science - Biology - New Member Hobbies - Musician - New Member APIX Pilot Plant Design Project - Member - New Member Hobbies - CNC - New Member Fans of Old Computers - ZX-81 - New Member

Join Date: Jan 2007
Location: Centurion, South Africa
Posts: 3921
Good Answers: 97
#4

Re: mobile phone

01/14/2008 8:37 AM

When it rings you have to press the green button. The red button will kill the conversation.

How the radio waves know where you are is a mystery.

__________________
 Never do today what you can put of until tomorrow - Student motto
Register to Reply
gumpu.ashok
Participant

Join Date: Jan 2008
Posts: 2
#5

Re: mobile phone

01/15/2008 6:26 AM

Hi,

read the Mobile communication By wiilliams

Register to Reply
Register to Reply
Have a Different Question?
5 comments
Copy to Clipboard

Users who posted comments:

gumpu.ashok (1); Hendrik (1); PWSlack (1); user-deleted-1105 (1); Zaphod2Headed (1)

Previous in Forum: Electic Solar Units   Next in Forum: Clothes Hanger Television

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 (89 right now)
Show Members
Advertisement