Difference between revisions of "TKIE - Using the loudspeaker as microphone"
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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). | 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 | + | To operate the relays, an event must be created with the TKIE-2 kit as the Event Owner: |
[[File:TKIE RelayAC.PNG|thumb|left|700px|The [[Audio (Event Type)|Audio event]] is used to switch the relays]] | [[File:TKIE RelayAC.PNG|thumb|left|700px|The [[Audio (Event Type)|Audio event]] is used to switch the relays]] | ||
Revision as of 10:39, 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 must be created with the TKIE-2 kit as the Event Owner:
The Audio event is used to switch the relays
In the example above the relays are controlled by the SET_IPRCO command. One can alternatively use the RCO command.