How to easily generate ASK signal ?

[Ruritania]

ASK signal generation?

Is there any good idea for generating ASK(Amplitude Shift Keying) signal? The easier the best. (The carrier freq. is about 400MHz, modulated freq. is about 10KHz.)

I've tried the way of using analog switch, the result is not so good.


Best Rgs.

Ruri

 

[Borber]

Re: ASK signal generation?

What you need is 433MHz ASK transmitter circuit. It is one transistor oscillator which is keyed on base through 50k resistor. Attached schematics is meant as transmitter for remote. It has SAW resonator.