VOICE TRANSMITTER USING 433 MHZ MODULES.(For DIY Walkie talkie)

[myfaithnka]

Hi all,

Is it possible to transmit voice data through the 433/315 Mhz RF modules. I am trying to make a walkie talkie using this modules.

I only need a range of 250 metres.Can power the tx with 12 v.

I am seeking advice from you all.

 

[betwixt]

You might be able to modulate the transmitter on some modules but the receivers are not designed for analog usage. There may be some modules hat work to some extent but most wont work at all.
You can't convert the analog to digital either, their bandwidth and data rates are too low.

Brian.

 

[myfaithnka]

ok...can you suggest a simple method to transmit voice in a 250+ metres,in bi direction. I am making this to benefit a group of school students.pls help.