| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve a trouble that the level of signal transmitted by a station is too low to lock and others to be simply resolved by interposing a splitter part in the connection line of an antenna part and receiving part to monitor and regulate the level of signal transmitted by the station. SOLUTION: A station transmitted signal regulator of a GPS receiver is constituted from a split part A and control part B to be connected to an antenna part and receiver part through lines L1 , L2 . The split part A outputs the station transmitted signal outputted outside from the receiving part to a mixer 4 through a pair of HPFs 20 and outputs GPS signal outputted from the antenna part to the outside through LPF 22 to the receiver part side through LPF 22. The control part B detects the level of the station transmitted signal to regulate the level by a controller 28 of a variable. regulation amplifier for example and send the level to the antenna part side. Thus, when the receiver part side did not lock the GPS signal, a user can regulate the station transmitted signal level to free himself from non-demodulation condition.</p> |
