The RO3073 is a true one-port, surface-acoustic-wave (SAW) resonator in a low-profile TO39 case. It provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters operating at 315 MHz. The RO3073 is designed specifically for wireless remote controls and security transmitters, typically for automotive-keyless-entry, operating in the USA under FCC Part 15, in Canada under DoC RSS- 210, and in Italy.