TELIKOU
SPK-200 Two-Channel Speaker Station
3
above will light. The settings are as follows:
ON: The selected microphone is activated, the switch is self-locked.
OFF: The selected microphone is off.
PTT: The selected microphone is activated, release and reset.
When the front panel speaker is turned on, pressing Mic button will reduce the
speaker output level about 6dB and help minimize feedback.
6. Mic LED
This LED lights when Mic switch (5) turns to ON or PTT.
7. Call Switch
Send call signal from host to the channel. Turn up or down the handle of call
switch, the LED (8) above selected channel will light (RED). This switch is without
self-locking function, release and reset.
8. Call LED
This LED will light under two cases: a) called: when the call signal from
communication channel is received; b) call: the call switch (7) is turned on.
9. Power Switch
Power switch is turned on, Power LED (10) light.
10. Power LED
This green LED lights on when the SPK-200 is receiving AC power. This LED will
flash when the SPK-200 senses a short or overload on the circuit. When the fault
is removed, the power supply will automatically reset and LED
11. Sidetone zero-adjusting
The SPK-200 uses full-duplex audio (the same as a conventional telephone line) in
which the talk and listen audio are sent and received on the same line. Thus,
when you talk on a channel, you will also hear your own voice back in the speaker
or headphones. This is called sidetone. If you are using the SPK-200 with a
microphone and speaker, sidetone could cause unwanted feedback, since the
