Naptech is a business supplies and equipment company based out of California, United States. We sell and service electronic test equipment, Been in business over 25 years. Over 50 years experience calibrating and repairing test equipment, Free evaluations! Spectrum Analyzers, Network Analyzers, Oscilloscopes, Signal/Sweep/Function Generators, Power Supplies and all types of test equipment made by major OEM's like HP/Agilent/Keysight, Anritsu/Wiltron, Fluke, Tektronix, etc. Specialize in obsolete equipment manufacturers no longer support. It's like sending equipment to OEM at half the price.