comnum.w2dbm#

comnum.w2dbm(p_w)#

Convert a power in watts to dBm, 10 log10 P + 30.

Parameters:: p_w (float | array_like) – the power (W).
Returns:: the power (dBm).
Return type:: float | numpy.ndarray
Raises:: ValueError – for values that are not real numbers.

Examples

>>> import comnum
>>> comnum.w2dbm(1e-3)
0.0