A method and apparatus for tuning the frequency and matching the impedance of an RF coil, or probe, used for nuclear magnetic resonance (NMR)/magnetic resonance imaging (MRI) are provided. In NMR/MRI, the RF coils used to acquire the data are tuned and impedance matched for enhanced performance. An embodiment of the subject invention allows for enhanced frequency and impedance adjustments to be made remotely when, for example, space for accessing the mechanical matching components is limited or not available. Applications in which embodiments of the invention can be beneficial include, but are not limited to, medical systems, very high field research magnets and research or commercial MRI/NMR systems.