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It uses SDR techniques and a combination of AM and FM to achieve polar modulation and generate SSB. He’s provided a fascinating in-depth technical explanation to help understand how it works.
Single-sideband (SSB) modulation: A method whereby information is transmitted using one sideband of the carrier frequency, thereby improving spectral efficiency and reducing redundancy.
AM, or amplitude modulation, was the earliest way of sending voice over radio waves. That makes sense because it is easy to modulate a signal and easy to demodulate it, as well. A carbon microphone… ...
This year, we recognize John R. Carson for two major contributions to communications technology: the invention of single-sideband (SSB) modulation and his rule for estimating ...
Dunn recalls the history of SSB within ham radio from the 1950s when most voice communication was done through amplitude modulation.
The circuit in Figure 1 complements a previous Design Idea (“ SSB modulator covers HF band,” EDN , Sept 30, 1999, pg 122). The modulator employs a phasing network to split a low-frequency audio signal ...
Orban states: “The 5500’s subchannel modulator acts a pure SSB generator for L–R material in the frequency range of 150 Hz to 17 kHz and as a vestigial sideband generator below 150 Hz. The software ...
The MBC-IQ-Lab is an electronic system able to control MXIQER modulators in a CS-SSB modulation scheme. It is based on the minimisation of the beating harmonic of two small dithers. This system ...