Hello all! I had a question related to a Sputnik soft replica. I'm new here, so I'm sorry if this is the wrong place to post this... So I've recently had the idea to make a soft Sputnik replica, with the classic beep transmission. Problem is... I don't know how. My goal is to transmit a beeping noise to an AM frequency, at 0.3 second intervals. Does anyone know how to transmit this (or if it is possible?)
Sputnik spoken here!
Sputnik transmitted a beep beep beeping sound at 20.005-40.001 MHz. The beeping can be easily modeled with any microprocessor or even CMOS circuit. The sticky part comes into transmitting. There are a few frequencies in that range that fit under the amateur satellite/amateur bands. You will need an amateur radio license to broadcast in this range.
You could use the Arduino to control a DDS chip (https://www.analog.com/media/en/technical-documentation/data-sheets/AD9850.pdf) to generate 28.5Mhz. Mix in the beeping filter and transmit. I've grossly oversimplified this process but showing that it is doable.
Get a HAM license first.