http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. en-gb 2009-01-08T08:43:28-08:00 contact@nospam.com hourly 1 2000-01-01T12:00+00:00 http://www.8051projects.net/forum-t11324.html 2009-01-08T08:43:28-08:00 BIOMEDICAL MONITORING SYSTEM (AT89C2051 + TX/RX)can u plz tell me which antenna is used in this transmitting and receiving system...can u specify the name of the specific antenna used in transmitting and receiving system....where can i get the hex filecan u plz post it here http://www.8051projects.net/forum-t11324.html 2009-01-08T08:43:28-08:00 sashijoseph You can use ~17cm single core wire for the antenna..