The HF ONYX IV from Wenzel Associates is an OCXO that operates from 10 to 25 MHz. It provides an output level of 10 dBm with low phase noise and low g-sensitivity. The oscillator has spurious levels of less than -80 dBc and harmonics of -30 dBc. It requires a DC supply of 12 V and has an internal voltage regulator for excellent power supply line rejection. This oscillator is available in a solder-sealed thru-hole PCB mount package that measures 1.0 x 1.0 x 0.5 inches and is designed for use in commercial and military applications, airborne / ground / shipboard, test equipment, synthesizers, base stations, and portable transceivers.