Attenuators Bench Top - Step Attenuators - Manual 0 to 69 dB in 1 dB Steps Specifications Frequency: DC-18.0 , DC - 12 .4, DC - 8.0, and DC - 4.0 GHz units available Attenuation Values: 0 - 69 dB Attenuation Accuracy: Attenuation (dB) DC-18.0 DC-12..4 DC - 8.0 DC - 4.0 1- 9 + 0.5 + 0.4 + 0.4 + 0.3 10-19 + 1.0 + 1.0 + 0.9 + 0.8 + 1.2 + 1.2 + 1.1 + 1.0 20-29 30-39 + 1.4 + 1.4 + 1.3 + 1.2 + 1.5 + 1.5 + 1.4 + 1.3 40-49 50-59 + 1.6 + 1.6 + 1.5 + 1.4 + 1.8 + 1.8 + 1.6 + 1.5 60-69 Impedance: 50 Ohms VSWR: 1.35 @ DC - 4 , 1.50 @ 4 - 12.4, 1.65 @ 12.4 - 18.0 GHz max Zero Position Insertion Loss: 0.7 @ DC-4 GHz, 1.0 dB @ 4-12.4 GHz, and 1.5 dB @ 12.4-18 GHz max. Power: 2 Watts average Operating Temperature Range: 0C to +55C Switching Repeatability: 0.05 dB Switching Life: 1,000,000 cycles Mechanical Stops: Clockwise @ Maximum dB, Counterclockwise @ Minimum Finish of Connectors: Passivated Stainless Steel 0 - 9 dB in 1 dB Steps SMA STA-1054-18-SMA-79 DC - 18.0 GHz 7mm Precision N STA-1054-18-NNN-79 0 - 60 dB in 10 dB Steps N STA-1055-18-NNN-79 0 - 69 dB in 1 dB Steps SMA STA-1056-18-SMA-79 48 STA-1054-18-7MM-79 DC - 18.0 GHz SMA STA-1055-18-SMA-79 dB 7mm Precision STA-1055-18-7MM-79 DC - 18.0 GHz N 7mm Precision STA-1056-18-NNN-79 STA-1056-18-7MM-79