| 摘要 |
<p>PURPOSE:To provide the information transmission system in a golf course, by which a simultaneous speech can be executed by telephone between each golf cart, and also, there is no fear that a voice becomes unclear caused by a position of the golf cart. CONSTITUTION:A simultaneous speech by a telephone set is executed through a central controller in a master room, and the central controller demodulates an output of a signal received from one golf cart by a demodulating circuit 30, and thereafter, varies a frequency of a carrier wave at the time of modulating it by a modulating circuit 29, and also, amplifies the output by an antenna 13a, and thereafter, sends it out to the other golf cart through a guide line 3. Also, it is desirable that a ratio of frequencies of carrier waves of a transmitting signal and a receiving signal is set so that it does not become an integer or 1/integer.</p> |
