How to use RFID Superheterodyne Receiver and Transmitter ?

Friends,
Do you know how to interface RF RFID Superheterodyne Receiver module 315/433MHz 9927A with MCS51 ?
And how to pair it with :

RF RFID Transmitter module 315M 150 meter w/Jumper 9912 ?

Link :
http://www.ebay.com.au/itm/RF-RFID-S...item20c468f380
http://cgi.ebay.com.au/ws/eBayISAPI....m=130600017985

Any information or link will be very appreciated

Thanks a lot

Bianchi did you see this:

http://www.priority1design.com.au/em4095_rfid_ic.html

How can I buy L with the right value ? what's the common value used usually ? in Henry ? uH or mH ?
that's the receiver,isn't it ? how about the transmitter ?

Is it better to use a ready made module like in ebay ?

Thanks

Why do you need to build from scratch such a device, when it’s more convenient to buy a pre-made receiver/transmitter modules?
High frequency circuits need special expertise and equipment so I recommend that you buy a working PCB module.

http://www.sparkfun.com/categories/7...sc&per_page=50
http://www.seeedstudio.com/depot/wir...sort=3a&page=1


There are plenty of applications available on the internet about this. Since they are just basic parts, you will need to do a little extra logic on your microcontroller to compensate for interference, eg sending error control codes so that missing / flipped bits can be detected and recovered.
http://narobo.com/articles/rfmodules.html
http://winavr.scienceprog.com/exampl...ntrollers.html
http://www.futurlec.com/Radio.shtml

http://receivershield.wickeddevice.com/

http://node.wickeddevice.com/

Thank your very much for the info...

---------- Post added at 12:35 ---------- Previous post was at 10:51 ----------

Can I use them directly to TX RX of RS232 ?

THanks

---------- Post added at 12:59 ---------- Previous post was at 12:35 ----------

Is this one :
http://www.ebay.com.au/itm/433Mhz-RF...item3f1711fcbc

The same with :
http://winavr.scienceprog.com/sites/...X433_TX433.jpg

?

any codes on how to use RFID with these modules ?
thanks