Patent ID: 7123000

Claim:
A channel power measuring apparatus for receiving a signal to be measured, and measuring a channel power being a power of said signal to be measured within a predetermined band, said signal to be measured including a center channel signal within a band determined based on a center channel frequency and an adjacent channel signal within a band determined based on an adjacent channel frequency separated from the center channel frequency by a predetermined frequency, wherein said predetermined band is centered around an adjacent channel frequency, the apparatus comprising: a band-pass filter means for passing the center channel signal and the adjacent channel signal; a frequency-axis-associated signal converting means for converting said adjacent channel signal after passing through said band-pass filter means to a frequency-axis-associated signal associated with frequency; a first power measuring means for measuring the power of said adjacent channel signal based on a signal within the predetermined band of said frequency-axis-associated signal; and a second power measuring means for measuring the power of said center channel signal by receiving the center channel signal, which passes through said band-pass filter means, wherein said second power measuring means directly receive the center channel signal from said band-pass filter means without passing through said frequency-axis-associated signal converting means.