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CMCs General Physics (4)
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Radio frequency measurements (4)
Scalar RF attenuation and gain: on coaxials (4)
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United Kingdom, NPL (National Physical Laboratory)
Complete CMCs in Electricity and Magnetism for United Kingdom (.PDF file)
Scalar RF attenuation and gain: on coaxials. Passive device, amplifier: , 0.01 dB to 100 dB
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in dB: (6E-04 + 6E-05), in dB
Voltage ratio
Frequency range: 10 kHz and 50 kHz, 0.5 MHz to 18 GHz
Reflection coefficient: <= 0.005
Impedance: 50
Alpha refers to magnitude of gain or attenuation, measurements are done at a fixed detection level, gain would be limited to 100 mW output power
Approved on 06 August 2013
Internal NMI service identifier: 371
 
Scalar RF attenuation and gain: on coaxials. Passive device, amplifier: , 100 dB to 120 dB
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in dB: 0.01
IF series substitution
Frequency range: 10 kHz and 50 kHz, 0.5 MHz to 18 GHz
Reflection coefficient: <= 0.005
Impedance: 50
Alpha refers to magnitude of gain or attenuation, measurements are done at a fixed detection level, gain would be limited to 100 mW output power. Measurement lower limit at > 100 dB.
Approved on 06 August 2013
Internal NMI service identifier: 372
 
Scalar RF attenuation and gain: on coaxials. Passive device, amplifier: , 120 dB to 140 dB
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in dB: 0.02
IF series substitution
Frequency range: 10 kHz and 50 kHz, 0.5 MHz to 18 GHz
Reflection coefficient: <= 0.005
Impedance: 50
Alpha refers to magnitude of gain or attenuation, measurements are done at a fixed detection level, gain would be limited to 100 mW output power. Measurement lower limit at > 120 dB.
Approved on 06 August 2013
Internal NMI service identifier: 373
 
Scalar RF attenuation and gain: on coaxials. Passive device, amplifier: , 0.01 dB to 80 dB
Absolute expanded uncertainty (k = 2, level of confidence 95 %) in dB: 2E-04, in dB
Voltage ratio
Frequency range: 18 GHz to 40 GHz
Reflection coefficient: <= 0.005
Impedance: 50
Alpha refers to magnitude of gain or attenuation, measurements are done at a fixed detection level, gain would be limited to 100 mW output power
Approved on 06 August 2013
Internal NMI service identifier: 377