Benefits of digital communications:
Digital communications requires less power, transmits farther and is reliable even in poor conditions. Another benefit is, digital communication can only be “decoded” by others set up for digital communications. It just sounds like a ‘humming or buzzing’ noise while transmitting to anyone monitoring the frequency without the digital equipment.
Digital communications does require a computer since it uses software such as fldigi. However, it does not require an internet connection for transmitting and receiving—it uses radio waves. Digital communications Send or receive text messages over radio using your computer’s sound card or using a Signalink.
Note: No Ham Radio License required to receive digital communications. This comes in to your computer through your sound card, so you can decode these signals into text from a Shortwave Radio Receiver or even a recorded audio file.
Click HERE to learn more about digital communications.