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Keysight Iowa Center of Excellence (formerly Liberty Calibration)

 Customers of Keysight Iowa can view their certificates and data using certXpress.

One-Stop Calibration and Antenna Calibration

Keysight now calibrates all your EMI/EMC test equipment, including antennas, e-field and current probes, EMI receivers and immunity generators. The Keysight Iowa Center of Excellence features a 50 x 80 meter CALTS-compliant ground plane, airborne drone (UAV) technology, anechoic chambers, and a covered OATS. Our experts can characterize antennas and evaluate patterns (at our site or yours), as well as provide One-Stop calibration for RF/microwave equipment (both Keysight and non-Keysight). All calibrations provided by the Keysight Iowa COE are accredited to ISO 17025:2005.

See accreditation details

Contact us: 712-254-5100 or


Kimballton, IA Elk Horn, IA Kanata, ON Canada
1346 Yellowwood Rd
PO Box 230
Kimballton, IA 51543      
2012 High Street
PO Box 410
Elk Horn, IA 51531     

350 Terry Fox Drive, Suite #106
Kanata, Ontario K2K 2W5


Please email for antenna calibration or antenna pattern request forms. In the email, please include your antenna model number, antenna type, and applicable calibration standard (if known).


Please download the form you need below and email the completed form to