Out of range transmitter/receiver

[Harry]

I've been searching this group and found lots of links for
transmitter/receivers but couldn't get enough info about what I'm
trying to build. How difficult it is to build a range transmitter for
my cat so if he goes out of certain range (eg. 100 ft), the receiver
starts to beep. It can be attached to collar and receiver could be
small enough to fit in pocket.

I've been reading about the RF transmitters. Sorry about my lack of
electronics knowledge but I'm really interested in the functionality of
such tool.
To make it bit more useful, would it be possible to set the range or
get the distance/direction of the transmitter.

Any help/directions would be greatly appreciated.

Thanks,
Harry.

 

[Paul Burridge]

I've been searching this group and found lots of links for
transmitter/receivers but couldn't get enough info about what I'm
trying to build. How difficult it is to build a range transmitter for
my cat so if he goes out of certain range (eg. 100 ft), the receiver
starts to beep. It can be attached to collar and receiver could be
small enough to fit in pocket.

Totally impossible, it seems, judging by the experience of the UK's
probation service.

 

[Phil Allison]

I've been searching this group and found lots of links for
transmitter/receivers but couldn't get enough info about what I'm
trying to build. How difficult it is to build a range transmitter for
my cat so if he goes out of certain range (eg. 100 ft), the receiver
starts to beep. It can be attached to collar and receiver could be
small enough to fit in pocket.

** See

http://cats.about.com/gi/dynamic/of.../www.uniquedistributors.com/catlocwittra.html



.......... Phil

 

[[email protected]]

Thanks for the link Phil, that's the kind of this I would like to
research about bit more in detail and understand how to to improve the
features and quality.

Does anyone know about good links/books/articles to learn about
transmitter/receiver?

Thanks,
Harry

 

[Phil Allison]

<[email protected]

Thanks for the link Phil, that's the kind of this I would like to
research about bit more in detail and understand how to to improve the
features and quality.

Does anyone know about good links/books/articles to learn about
transmitter/receiver?

** Err - forget it.

Simply not on for home construction.

Wanna try making you own mobile phone too ??




.......... Phil