Frequency selection method and receiver

A receiver using a frequency selection method,

• said frequency selection method selects at least one of plural frequencies constituting a predetermined frequency band,
• said plural frequencies being divided into plural groups adjacent each other in their ascending order,
• at least one representative frequency being present among said plural frequencies constituting each of said groups,
• said method comprising the steps of:
• (a) obtaining said representative frequency satisfying a first condition on the basis of a received signal strength indicator;
• and
• (b) selecting said at least one of said plural frequencies satisfying a second condition on the basis of the power of a desired wave, from all of said frequencies constituting each of said groups to which said representative frequency satisfying said first condition belongs.

A receiver using a frequency selection method,

• said frequency selection method selects at least one of plural different frequencies constituting a predetermined frequency band, said method comprising the steps of:
• (a) when an index on the basis of a received power with respect to one of said frequencies is not less than a predetermined value below said index with respect to the other adjacent to said one frequency, finding again said index with respect to said one frequency;
• and
• (b) from said frequencies satisfying a first condition on the basis of the fact that said index is not less than a predetermined value, selecting frequencies satisfying a second condition on the basis of the power of a desired wave.