| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a base station diagnosing a reception circuit in actual operation with a simple hardware configuration without depending on change of a surrounding environment. <P>SOLUTION: The base station includes: a reception circuit for generating a reception IF signal including two IF signals by performing frequency conversion of a reception RF signal using two local signals with different frequency and signal level; and a control circuit for performing a normal reception process and diagnosis of the reception circuit using the reception IF signal. <P>COPYRIGHT: (C)2011,JPO&INPIT |
