Tampa Microwave, designer and manufacturer of RF and microwave communications and test equipment, has added four firms to its sales representative network. The firms and their respective regions of coverage are:

TeraComm, covering Mass., Conn., Vt., Maine, N.H., N.Y., Md., Northern N.J., D.C., Va., and W. Va.

C-Wave, covering Southern Calif.

Eastern Instrumentation of Philadelphia, covering Penn., Del., and Southern N.J.

Dura Sales, covering Northern Calif.