In a particular receiver in a wireless communications system, two signals are mixed together as part of the frequency down-conversion process. Given: F1 = 500 MHz F2 = 400 MHz which of the following frequencies are present at the output of the mixing device?
A.100 MHz
B.900 MHz
C.Both 100 MHz & 900 MHz
D.Neither 100 MHz nor 900 MHz
The border between the radio frequency (RF) portion of the electromagnetic spectrum and the microwave (uWave) portion of the spectrum is typically defined as occurring at 3 GHz. Assuming that the speed of light is 3e8 m/s, what is the wavelength of a signal at this frequency (in centimeters)?