Difference between revisions of "TKIE - Using the loudspeaker as microphone"
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== Wiring diagram == | == Wiring diagram == | ||
| − | TKIE AnswerInSpeaker.PNG | + | [[File:TKIE AnswerInSpeaker.PNG|thumb|left|700px|Wiring diagram - both relays are used to switch between mic input and amplifier output]] |
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{{note|Use a 100pF capacitor in series with the plus-wire to remove the microphone bias}} | {{note|Use a 100pF capacitor in series with the plus-wire to remove the microphone bias}} | ||
Revision as of 10:37, 13 November 2019
This article describes how the loudspeaker connected to a TKIE-2 kit can be used as a microphone.
Wiring diagram
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Use a 100pF capacitor in series with the plus-wire to remove the microphone bias |
ICX/AlphaCom configuration
The relays of the TKIE switches the loudspeaker, so it is either connected to the mic input (idle) or to the amplifier output (relay active).
To operate the relays, an event mist be created with the TKIE-2 kit as the Event Owner:
TKIE RelayAC.PNG
In the example above the relays are controlled by the SET_IPRCO command. One can alternatively use the RCO command.