The Model 9000 series Step Attenuators are broadband miniature step attenuators that provide excellent performance characteristics suitable for use in high reliability 50 ohm systems and applications requiring extra-small components for the precision control of signal levels. The Model 9000 series can be used either as input or output attenuators in signal sources, receivers, field strength meters, spectrum analyzers, etc. The SMA connector furnished on all models are available in either standard or right-angle configuration. The sex of front and rear connector is optional. A knob(s), marked appropriately, is supplied with each unit.