CHIAYO SDR-1900 IrDA - Manual (Page 2)

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Thank you for choosing this wireless microphone system!
Our products are designed to last and for user friendly operation. Each system consists of:
1. a receiver
2. two handheld/beltpack transmitters
3. a pair of antennas
4. a switching adaptor
5. an operation manual
For more details, please take a few moments to read this operating manual to have a thorough
understanding of the function and operation of both transmitter and receiver.
Parts and functions of SDR-1900 IrDA receiver
Front panel
Rear panel
1. Power switch
2. Volume control
3. RF diversity A B indicator
4. AF indicator
5. 7-segment channel display
6. Channel selector
7. IrDA synchronizing area
8. IrDA synchronizing button
9. Antenna B (TNC socket)
10. CH2 squelch control. Clockwise to increase level.
11. Mic /Line level switch (CH2)
12. Mix output on/off switch
13. CH2 unbalanced audio output (mixed)
14. CH1 unbalanced audio output
15. Mic /Line level switch (CH1)
16. CH1 squelch control. Clockwise to increase level.
17. DC input
18. Antenna A (TNC socket)
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