__________________________________________________________ Radio Wave Propagation
2-29. Now, let us apply the formula to determine the frequency to which the
receiving equipment must be tuned to receive station WXYZ operating on 240
meters. Radio wave frequencies are normally expressed in kilohertz or
megahertz.
2-30. To find the frequency in hertz, use the formula:
v
f=
λ
Given:
v = 300,000,000 meters per second
λ = 240 meters
Solution:
300,000,000 meters per second
f=
240 meters
f = 1,250,000 Hz
2-31. To find the frequency in kilohertz, use the formula:
300,000
f (kHz) =
λ
Given:
λ = 240 meters
Solution:
300,000
f (kHz) =
240 meters
f = 1,250 kHz
2-32. To find the frequency in megahertz, use the formula:
300
f (MHz) =
λ
Given:
λ = 240 meters
Solution:
300
f (MHz) =
240 meters
f = 1.25 MHz
2-9
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