very simple and low cost transmitter and reciver

[meysaminter]

hi
i want to build very simple and low cost transmitter and reciver that works in 20 meter in radio frequency.(with no IC or very very cheap IC)
thanks for any help

 

[davenn]

hi
i want to build very simple and low cost transmitter and reciver that works in 20 meter in radio frequency.(with no IC or very very cheap IC)
thanks for any help

over a 20 metre distance I assume (not the 20metre wavelength band) what do you want to use it for ? voice, data, video?

that will determine what suggestions i can offer you
if its data, google 433MHz data transmitter/receivers there tons of choices

Dave