Shortwave transmitter system with audio signal feed via an analog telephone connection

摘要

The invention relates to a short-wave transmission system with at least one short-wave transmitter (1), an audio signal source, and connected one to the Niederfequenzeingang of the short-wave transmitter (1) playback medium (3,4) for a signal output from the audio signal source audio signal. To deploy a low cost and quickly and easily einzurichtendes playback medium, has this invention an analog main line (3) of a telephone network and a network connection module (4) on that designed as means for receiving and forwarding the audio signal to the low-frequency input of the short-wave transmitter from the main terminal (1) is by having a Rufauswertungseinrichtung and a controlled thereby, delayed catching operation relay that switches a direct current loop for low-frequency input of the short-wave transmitter (1) after a predetermined number of received paging signals, and holds for the duration of the audio signal transmission.