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Wireless: When I plug in the RTS line, my voice level in the Pro850 beltpac headset drops

Wireless: When I plug in the RTS line, my voice level in the Pro850 beltpac headset drops

Apr 06, 2019

Two-wire intercom lines such as RTS-TW are designed to operate with a fixed 200-Ohm load. Any piece of equipment intended to operate on this line is balanced for that load impedance. If the PRO850 is operated with the two-wire interface active but unterminated, the interface is unbalanced and the side tone heard in the beltpac will be excessively high. When the two-wire line is plugged in to the base, the two-wire interface will be balanced and the level will drop to normal.

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