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Electromagnetic Compatibility Qualification Testing

 Engineering Services


Since 1979

DNB Engineering, Inc. is a full-service test lab that was founded by Alwyn Broaddus and has been family-owned and operated since 1979.  DNB is fully staffed to provide customers with EMC (Electromagnetic Compatibility), Lightning, HIRF, Environmental, Product Safety and Regulatory Testing.

Headquartered in Fullerton, CA, we have doubled our testing capability with the second facility in Fullerton (Raymer Avenue), just a few blocks away. We also have facilities in Riverside, CA, Anaheim, CA, Coalville, UT and Chandler, AZ.

More About Us


We perform testing services for a variety of exacting
military and commercial test standards, including
RTCA/DO-160, MIL-STD-461, MIL-STD-464,
MIL-STD-704, MIL-STD-1399, RS105, 40GHz,
Section 20, 21, 22, 23 and ARP5412,
5413, 5414, 5415, 5416.




Programs & Industries

DNB Engineering has been a part of just about every major military and aerospace program in the last 30 years. When the requirements are difficult and you need a test lab that has the experience and expertise to get you through the requirements,


DNB Engineering is your answer.

Program Experience

DNB Fullerton, California - H.Q. Facility

DNB Anaheim, California - Lightning Facility

DNB Coalville, Utah

DNB Riverside, California

DNB Chandler, Arizona