Signal generation duties could easily be handled by a 555 circuit at the low end, and a computer sound card at the higher end. [brmarcum] obviously put some time into his tutorial, but it’s not ...

Researchers from the Institute of Science Tokyo proposed a time-division Multiple-Input Multiple-Output (MIMO) technology for ...

In Frequency Shift Keying the transmitted signal shifts between two different frequencies to represent binary data, like two different notes from a piano. This would technically be 2-FSK modulation.

International Conference: PIERS 2023 Announcement Title: Low-Phase-Noise Frequency-Tunable Microwave and Millimeter-Wave Generation Using an Electro-Optic-Modulation Comb” [Glossary] ...

Research into ionospheric wave generation and modulation has significantly enhanced our understanding of the upper atmosphere’s dynamic behaviour. Ionospheric waves arise from the interplay ...