Telecommunication systems including a base and mobile...

Details Telecommunication systems including a base and mobile... Telecommunication systems including a base and mobile...

H - Electricity

04

B

325/10

H04B 3/36 (2006.01) H04B 5/00 (2006.01) H04B 7/155 (2006.01) H04B 7/26 (2006.01)

Patent

CA 1042513

Abstract of the Disclosure A telecommunication system used in a mine has a long aerial along a tunnel which radiates signals to a mobile station. Signals from the station are radiated back to the line. Repeaters are included along the line to make up power losses. A connection of an extra length of line is made on the output side of each repeater and extends back parallel to the line for a distance of up to half the distance between adjacent repeaters. This extra line reduces the attenuation of signal power between repeaters.

229031

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