Talk:RadiMation Application Note 104

Isn't the performing of a current sensor calibration, not simply performing a cable calibration using the attenuation/gain calibration module? The determined attenuation is a little bit higher than a standard cable, but the principle is the same.

Joro 09:13, 6 October 2015 (UTC)

Another idea: What does Google say on: "how to calibrate RF Current sensor"?

Joro 09:14, 6 October 2015 (UTC)

See: http://fischercc.com/productfiles/Current_Probe_Calibration_Rev_A_001c.pdf It is a very good description on how the current sensor can be calibrated. In RadiMation this is a cable attenuation test. Then the result is a positive cable loss. The sign of that cable loss should be inverted (-), and +34 dB should be added. This results in a dBOhm transfer impedance, which can be specified in the 'Resistance' column in a Correction file.

As a verification a Fixed signal power test at 0 dBm can be performed, while the current is also measured with the current sensor and the sensor powermeter. The measured current should be 4.4 mA. Psg == 0 dBm = I*I * R. I = sqrt(P/R) = sqrt( 1 mW / 50) = 4.4 mA.

Sast 12:51, 6 October 2015 (UTC)