Coupling converter for vehicle antennas

  • US 4,106,025 A
  • Filed: 10/22/1976
  • Issued: 08/08/1978
  • Est. Priority Date: 10/22/1976
  • Status: Expired due to Term
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First Claim
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1. A coupling conversion unit for connecting a citizens band transceiver in a broadcast-receiving installation having a broadcast receiver, a broadcast antenna and shielded cable between the antenna and the receiver, said coupling conversion unit comprising:

  • (a) a base member having(b) intermediate lead means for connection beween said shielded cable and said receiver, said intermediate lead means including(c) a shielded antenna lead member for connection with said shielded cable and(d) a shielded receiver lead member for connection with said broadcast receiver,(e) auxiliary lead means for connection with said citizens band transceiver, said auxiliary lead means including,(f) impedance matching means and,(g) a shielded auxiliary lead member;

    (h) the shielding conductors of said auxiliary lead member and said antenna and receiver lead members being connected in common,(i) priority switch means, relay means and overload preventing means responsive to a flow of current to the transceiver to give the transceiver priority over the receiver by immediately electrically connecting exclusively said antenna lead member to the transceiver via said auxiliary lead means whenever the transceiver is activated, said priority switch means including(j) connecting means for selectively connecting and disconnecting the center conductors of said antenna lead member and said receiver lead member,(k) positioning means connected to said connecting means for controlling the position of said connecting means whereby the center conductor of said antenna lead member is connected with the center conductor of said auxiliary lead member when the center conductor of said antenna lead member and said receiver lead member are disconnected so that said receiver lead member is electrically isolated from said auxiliary lead member and said antenna lead member whenever the transceiver is activated.

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