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Low-Noise Oscillators Replace Cavity Sources

Nov. 9, 2012
A line of low-noise oscillators has been developed to replace cavity oscillators in microwave radios.

The MRO series of microwave radio oscillators from EM Research is designed to replace cavity oscillators in analog and digital microwave radios operating from 2 to 12 GHz. Standard frequency ranges include 5300 to 5500 MHz; 5500 to 5700 MHz; 5700 to 5900 MHz; 5900 to 6100 MHz; 6100 to 6300 MHz; and 6300 to 6500 MHz. The oscillators deliver as much as +13 dBm output power with spurious levels of better than -70 dBc and frequency stability of better than ±1 ppm from -10 to +70°C. Typical phase noise at 5900 MHz is better than -95 dBc/Hz offset 10 kHz from the carrier and better than -143 dBc/Hz offset 1 MHz from the carrier. The MRO line can be tuned manually or via serial programming to within 1 kHz of a desired frequency. The oscillators include a frequency reference and nonvolatile memory for programming. They measure just 3.05 x 2.02 x 1.62 in. and are available for supplies of +5, +8, and +12 VDC (less than 300 mA current consumption).

EM Research, 1301 Corporate Blvd., Reno, NV 89502; (775) 345-2411, FAX: (775) 345-1030, e-mail: [email protected], www.emresearch.com.

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