RF-SCG is a new system that can capture seismocardiogram (SCG) recordings without requiring any contact with the human body. Such an unobtrusive approach would enable lay users to routinely monitor their SCG signals (e.g., on a daily basis), and may provide early warnings of cardiovascular conditions. This capability could be particularly helpful for monitoring high-risk populations – like the elderly, neonates, or patients with arrhythmia – in their everyday environments. It may also enable on-the-spot heart recordings in the event of a cardiovascular emergency. For example, if someone suspects they may be suffering from a heart attack, they could use such a system to immediately measure their SCG.