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Sales Reps for Virginia
MHz Marketing, Inc.
(SATCOM and Components)
Southern NJ (08000-08799); Eastern PA (15500-15599, 15800-15899, 16600-19699)

11285 Dovedale Court Suite A Marriottsville, MD 21104
Phone: 1-866-649-6584
Fax: 1-410-489-9117

Mr. Scott Masterman, President
Phone: 410-221-3114
Email: scott@mhzmarketing.com

Ms. Nancy Nathanson, Office Manager
Phone: 410-221-3120
Email: nancyn@mhzmarketing.com

Mr. Jason Sullivan
Phone: 410-221-3119
Email: jasons@mhzmarketing.com

Adam Priest
Phone: 410-221-3139
Email: adamp@mhzmarketing.com

Mr. Rick Sapp
Phone: 410-221-3113
Email: rick@mhzmarketing.com

Mr. John Stilling
Phone: 410-221-3105
Email: johns@mhzmarketing.com

Mr. Jon P. Lehr
Phone: 717-200-4527
Email: jonl@mhzmarketing.com

Mr. John Humiston
Phone: 267-691-3260
Email: johnh@mhzmidlantic.com

Get updates from Narda-MITEQ:
Mailing Address

435 Moreland Road
Hauppauge, NY 11788

PHONE: 631-231-1700
FAX: 631-231-1711

Send Special Component Product Requests, or any other questions or comments to:

Send Special SATCOM Product Requests, or any other questions or comments to:

IQ Modulators

IQ ModulatorsIQ Modulators are also commonly referred to as Quadrature Modulators or QPSK Modulators (for Quadrature Phase Shift Keying).

All modulators and SSB upconverters require that at least one of the input frequency bands (carrier or modulation) has sufficient power to turn on the semiconductors. All modulators yield a frequency spectrum that utilizes both sidebands on either side of the output suppressed carrier. SSB upconverters, however, employ an internal IF 90° hybrid to yield only one RF sideband output. This is offset above or below the input LO by the IF frequency.

IQ Modulators Catalog Listing - Click here

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Schottky diode (standard) modulators have the greatest speed and bandwidths, but yield RF output powers of typically less than 0 dBm. Greater output power can be achieved by using higher level diodes with proportional increases in carrier power. Some carrier driven units are used
when the modulation input to RF output must be linear (low harmonics). A typical application is for digital QPSK with cosine shaped pulses (for minimum bandwidth). Many SSB upconverters also require input-to-output signal linearity, thus requiring LO drive.

IQ Modulators:

Carrier Driven IQ Modulators
Modulation Driven IQ Modulators

Narda-MITEQ designs and manufactures a broad range of standard frequency modulators, which include:

BPSK and Bi-Phase Modulators
Double-Sideband Upconverters
QPSK and QAM modulators.

Narda-MITEQ maintains dedicated engineering resources to modify our standard designs in support of custom-generated specifications.

All modulator products are backed by Narda-MITEQ's 3-Year Warranty, and most are available as RoHS Compliant components.
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Please Contact Narda-MITEQ for more information:

Email: componentsnm@l3harris.com
Phone: +1 (631) 439-9220
Email: satcomsalesnm@l3harris.com
Phone: +1 (631) 439-9220

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