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TX carrier frequency accuracy and current measurement

Hello, 

my first question is about TX carrier frequency accuracy measurement. The equation given in the whtie papers is 

(|f_measured - f_programmed|) / f_programmed <= M * 10 ^ -6

I measured the carrier frequency on the channels 0, 40 and 80 of the radio_test_example and always got an offset of 6.503 kHz.

Do you expect a constant absolute offset or a constant relative deviation? Because i measured a constant absolute offset, the biggest relative deviation is on channel 0.

My second question is about current consumption. Do you have typically plots for certain events somewhere? I tried to measure the current with an oscilloscope using 5 ohms for R6 on the DKs but struggled, especially with noise and triggering the event correctly. However, these are plots for the nRF51-DK i could measure:

current_measurement.pdf

I do not know how these events should look like. I think, that the values are somewhere in the range they could be be plausible. The tx current @ 0 dBm of the nRF51 is specified with 10.5 mA. What do you think about these plots?

Thank you in advance and kind regards

DanKa

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