| 摘要 |
PROBLEM TO BE SOLVED: To easily execute the characteristic test of a transmission circuit or the like and the performance test of an antenna of the portable telephone set adopting the diversity system. SOLUTION: In the portable telephone set 100 adopting the diversity system, a transmission wave outputted from a transmission circuit 8 is outputted to a 1st external interface connector 5 via a 2nd switch 4, a transmission reception antenna 2, space, a reception antenna 1, and a 1st switch 3. A high frequency signal reception measurement device 200 is connected to the 1st external interface connector 5 to measure a transmission output power through the antennas 1, 2 and modulation accuracy. Moreover, the performance test of only the transmission reception antenna 2 and the reception antenna 1 is conducted by outputting the transmission wave from a high frequency signal transmission measurement device 300 switching the 2nd switch 4 to the 2nd interface connector 6. Furthermore, the 1st and 2nd switches are switched respectively to the reception circuit 7 and the transmission circuit 8 respectively. |
