The interface used is the well know CAT300DX produced by CATUATO.COM. The interface has a synthesized voice and a repeater controller. It is good to cite, the company has gotten out the business years ago, however it has a plenty of ham repeaters those have been using this famous brand in many of their boards( CAT300 CAT300DX CAT250). I have searched on the YouTube and the original video was deleted by the author, therefore take advantage with this partial video the unique i have found on the net regarding the AUTO PATCH interface. In Brasil this technology has been very used on final of 70´s and during 80´s to 90´s. The first manufacturer was TELEPATCH a Brazilian company that produced HAM RADIO REAPEATERS, and after this time dedicated efforts on commercial rigs. On 90´s the producers market created the dual band radios with transmission and reception at same time, UHF / VHF and many autopastiches have been sold WW ( radio such as TM631 TM731 TM732 TM741 TM742 the last two radio tree band from Kenwood JP). In 1993 the cell phone has been started in Brazil, but the price was amazingly high. We had continued to use the system till 1997. After that time i cancelled the telephone line from the repeater.

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