Step attenuators are very much similar to fixed attenuators. The only difference is that one can select an attenuation value in a step attenuator by using digital control or manually by push-buttons or by a rotary switch.
Variable attenuators are used in laboratories, when it is necessary to obtain small value of voltage or current for testing purposes.
Model No. Frequency(GHz) Attenuation
Step Size Max VSWR Insertion loss(dB) Attenuation Accuracy(dB)
TWVASm-1-0.1-3G DC-3 0-1dB in 0.1dB steps 1.3 ≤0.5 ±0.3
TWVASm-1-0.1-6G DC-6 1.4 ≤1.0 ±0.3
TWVASm-10-1-3G DC-3 0-10dB in 1dB steps 1.3 ≤0.5 ±0.5
TWVASm-10-1-6G DC-6 1.4 ≤1.0 ±0.5
TWVASm-60-10-3G DC-3 0-60dB in 10dB steps 1.3 ≤0.5 ±0.5(