The Cyber-Spy.Com Usenet Archive Feeds Directly
From The Open And Publicly Available Newsgroup
This Group And Thousands Of Others Are Available
On Most IS NNTP News Servers On Port 119.
Cyber-Spy.Com Is NOT Responsible For Any Topic,
Opinions Or Content Posted To This Or Any Other
Newsgroup. This Web Archive Of The Newsgroup And
Posts Are For Informational Purposes Only.
From: "Da Man"
Subject: Re: old cellphone reuse/salvage and schematics/tech info?
X-Newsreader: Microsoft Outlook Express 5.50.4807.1700
X-MIMEOLE: Produced By Microsoft MimeOLE V5.50.4910.0300
Date: Tue, 07 Jan 2003 00:20:52 GMT
NNTP-Posting-Date: Mon, 06 Jan 2003 20:20:52 AST
"john walton" wrote in message
> I am using the cell phone battery for one of my first Motorola units to
> power a Tektronix photometer.
I made a little sterio FM transmitter, and a old NiMH cell battery powers
it. I even use some of the old phone as a charger!
> "Smile, it can only get WORSE" wrote in message
> > Good Day all,
> > What happens to old cell phones? They seem to be throw away devices,
> > even tho they still work after the contract runs out. These days 2
> > years of use makes the phone ancient and worthless, regardless of
> > whether it still works or not.
> > But these things are full of good rf parts sensitive 800 mhz receivers
> > that can be put on 900 mhz ham bands and 3 watt transmitters that can
> > run cw or fm---since the receiver and the transmitter have to run in
> > close proximity to each other (and in full duplex), their LO's and
> > transmitter spectral output has to be squeaky clean. Of course, there
> > is a duplexer and the thing is loaded with top quality UHF rf
> > components. Some of them have 'test modes' which allows the user to
> > tune and transmit and manually control the frequencies from the
> > keypad.
> > Anyway, I never see service manuals or other technical information for
> > these things and a one year old cellphone goes for 20 bucks or less on
> > ebay these days! 2 year old cell phones go for 3 for 20 bucks or so..
> > Has anyone hacked into these and published any information on using
> > them for alternative purposes???? Or gaining control of these things
> > in service mode? Does anyone deal in Service Manuals for these
> > things??
> > Email me or post reply here.
> > Have a great day.
> > Art
Go Back To The Cyber-Spy.Com
Usenet Web Archive Index Of
The sci.electronics.design Newsgroup