Radio Frequency

/ˌɑːr ˈɛf/

noun — "the spectrum of electromagnetic waves used for wireless communication."

Digital Mobile Radio

/ˌdiː ɛm ˈɑːr/

noun — "a digital radio standard for efficient, high-quality mobile communication."

Narrowband FM

/ˈnær·oʊˌbænd ɛf ˈɛm/

noun — "frequency modulation with small deviations for efficient spectrum use."

Wideband FM

/ˈwaɪdˌbænd ɛf ˈɛm/

noun — "frequency modulation with a wide signal deviation for high-fidelity transmission."

Frequency Modulation

/ˌɛf ˈɛm/

noun … “hiding information in the twists of a wave’s frequency.”

SDR

/ˌɛs diː ˈɑːr/

n. "Configurable RF transceiver implementing analog radio functions via FPGA/DSP software unlike fixed SerDes PHYs."