| 摘要 |
PROBLEM TO BE SOLVED: To provide a transmission timing variable circuit which adds desired transmission jitters to the transmission timing of a transmitter for testing propriety of reception timing of a receiver in the radio communication. SOLUTION: This transmission timing variable circuit includes a reference signal generator, a counter where the reference signal, i.e., the output of the reference signal generator is inputted as a count clock and the count-out value can be preset and a control part which outputs the count-out output of the counter as the transmission timing signal of transmission frame of a relevant tester, changes the count value for each count-out, to perform the preset control to the counter with the count-out output of the counter used as an input trigger and also supplies a reset signal to the counter. |
