so do we have any electronics/radio experts?

[Battle_axe]

i am looking at making a BPSK demodulator does anyone know where there is a good circuit as an example or who is prepared to talk me through how it is done?

the base frequency i will be useing is 5MHz

[AmiSMB]

Use a NE555 timer?

[AmiSMB]

Try this link

BPSK Modulator (http://www.wireless.org.uk/moritz.htm)

[AmiSMB]

Or this

Improved BPSK demodulator (http://www.kumanov.com/Hardware/packet-radio/)

[Battle_axe]

Or this

Improved BPSK demodulator (http://www.kumanov.com/Hardware/packet-radio/)

and i take it this will work with 5MHz?

[AmiSMB]

Says it will work up to 20Mhz

[AmiSMB]

Is this so that you can encode and decode messages to your girlfriend and so as to be virtually together when you are apart? :D