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Phase Noise
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Design & Manufacturing of VCOs since 1992 in the USA

Modco, Inc. designs and manufactures high quality voltage controlled oscillators for commercial, industrial, medical and military applications. Frequencies from 10 MHz up to 12 GHz are available in a wide selection of standard and custom packages. Custom designs are offered with no NRE charges.

Connectorized & Test Fixtures

Hermetic Military Grade

Surface Mount

Modco offers application targeted models as well as standard general purpose VCO'S. Applications include but are not
limited to WLAN, PCMCIA, PCS, Portable Radios, VSAT, Instrumentation, CATV, Up / Down Converters, Frequency
Multipliers, Modems, Cellular Telecommunications, Industry / Science / Medical (ISM), wireless Utility Meters, Local
Multipoint Distribution Service (LMDS), CDMA, GSM, ECM, plus VCO's for P25 and TETRA handheld, mobile and base station radios.

Custom designs are our specialty

New Products

Recent Additions to the Modco VCO Line Up


Modco model FL1646VS tunes 6100-7000MHz and exhibits
Phase Noise of -76dBc @ 10kHz offset.
The package size is 0.175 inch square and height is 0.075 inch.
It draws only 23ma and delivers power output of +5.5dBm.


New wide-band Modco MW1600-3200MST tunes 1600-MHz-3200MHz.Phase Noise is -89dBc @10kHz offset. The unit draws 16ma and delivers +6.0dBm of power. Operating Temperature range is -40 to +85 °C. Industry standard 0.5 inch square package.


Modco’s latest addition to its line of broad band low Phase Noise VCO’s is model MD1200-1700MST. The unit tunes 1200MHz to 1700MHz in 0.5V to 12.0V. Phase Noise is -105dBc @ 10kHz offset. Low Profile package size is 0.500 X .500 X 0.125 inch.