Profile: Telonic Berkeley, Inc. is a designer and manufacturer of filter banks, low noise amplifiers, multipliers, radio frequency products and integrated products. We are an 9001:2008 certified company. We provide precision rotatory step attenuators which includes sub-miniature, miniature, programmable, bench mount and tandem mounted, with attenuator ranges of up to 110 dB, and frequency ranges of up to 2GHz. We also supply multiplexers, diplexers, solid state switches, switch filters, isolators, ferrite circulators, and switch & pin diode switches.