HW V4 / © 2005 – 2013 Aaronia AG, DE-54597 Strickscheid
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Manual Spectran V4
Physical units
In contrast, if E is not known, calculation of S is still possible as follows:
= ²
∗ 377
Should you wish to calculate the electric field E, the following formula applies:
=
² ∗ 377
And the magnetic field H can be calculated like this:
=
²
377
11.4. Calculating the wavelength in [m]
To calculate the wavelength from the frequency, use the following formula:
λ
=
Here, „c“ corresponds to the speed of light in
(rounded to 300,000km/s in
our example), „f“ to the frequency of the radiation in [Hz], and
λ
to the
wavelength in
.
Examples:
λ
=
!
"#
= 0.33 m
(For 900 MHz, the result is 0.33m)
λ
=
$ %
"#
= 0.17 m
(For 1 800 MHz, the result is 0.17 m)
