ISO 9001
REGISTERED
ISO
14001
ISO 14001
REGISTERED
OHSAS
18001
OHSAS 18001
AIR-812
AIR-212
UHF / VHF Diversity Wireless Microphone System
Operation Manual
GREEN PRODUCT
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/belt-pack transmitters
3. a pair of antennas
4. an 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 receivers
Front panel
2 3
4
5 6
7
1
→AIR-812
2
3 4
5
6 7
1
Rear panel
→AIR-212
8
9
10 11
12 13
14
15
16
17
→AIR-812
8
9
10 11 14
16
17
12 13 15
→AIR-212
1. Power switch
2. CH1 RF diversity A B indicator
3. CH1 AF indicator
4. CH1 Volume control
5. CH2 RF diversity A B indicator
6. CH2 AF indicator
7. CH2 Volume control
10. MIC ( balanced)/LINE (unbalanced) level switch (CH2)
11. MIXED output on/off switch
12. CH2 audio output (mixed)
13. CH1 audio output
14. MIC ( balanced)/LINE (unbalanced) level switch (CH1)
8. CH2 squelch control. Clockwise to increase 15. CH1 squelch control. Clockwise to level. increase level.
9. Antenna B (TNC socket) 16. DC input
17. Antenna A (TNC socket)
Adjusting VOLUME level
Volume level can be adjusted by rotating the designated volume knob. Clockwise to increase the volume and counterclockwise to decrease the volume.
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ISO 9001｜ISO 14001｜OHSAS 18001
Adjusting SQUELCH level
The squelch control is on the back of the receiver. When strong interference happens to the operation, you can use a small screw driver to increase the squelch level by turning the switcher clockwise. If the interference is too strong even the level is already set to maximum, the currently in-use channel is not applicable in this location and a change to channel is recommended.
Receiver installation
For best operation, the receiver should be at least 1m above the ground and 1m away from a wall or metal surface to minimize reflections. The transmitter should also be at least
1m away from a wall or metal surface to minimize reflections.
The transmitter should also be at least 1m away from the receiver. Keep antennas away from noise source such as motors, automobiles, neon light as well as large metal objects.
1. Turn on the receiver and transmitter and set both to the same frequency.
2. There are 2 audio output jacks, AF1 and AF2, in the receiver rear panel. AF1 is for channel 1 while AF2 for channel 2. The audio output of channel 2 can be mixed with channel 1 by switching MIX SWITCH to ON, otherwise its output is independent. Besides, there is a MIC/LINE selector for both AF1 and AF2. If handheld/headset/lavalier microphone is used, please switch to MIC. If instrument cable is connected to beltpack transmitter, please switch to LINE.
Mixer / Amplifier
mixed audio output (MIX SWITCH to ON)
AF2 audio output (MIX SWITCH to OFF) individual audio output
Mixer / Amplifier
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Handheld transmitters（Q-818｜Q-815｜Q-215）
Parts and functions
1 2 3 4 5
1. Cartridge
2. Battery power LED
3. Power switch
4. Battery compartment
5. Color cap
Battery installation & indicator
This transmitter requires 2 x AA batteries to operate.
To install, remove the battery cover and slide the batteries into the battery compartment & replace the battery cover.
Note: Batteries contain a corrosive acid that may leak and damage the transmitter when stored for a long period. Batteries should be removed from the transmitter before storing without use for more than 4 weeks.
When the transmitter is switched ON, a red LED will blink once to indicate the batteries installed are in good condition. If the LED remains illuminated, it means the batteries are
weak and require replacement.
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Belt-pack transmitters（M-818｜M-815｜M-215）
Parts and functions
1. Antenna（M-818｜M-815）
2. Battery power LED
3. Power switch
4. Mini XLR connector
5. Cover release button
6. High-impedance gain control (GT)
7. Low-impedance gain control (MT)
8. Battery compartment
9. Charging contacts
1
2 3
4
ISO 9001｜ISO 14001｜OHSAS 18001
5
6 7
8
9 9
Battery installation & indicator
This belt-pack requires 2 x AA batteries to operate.
To install, open the battery cover using the cover release buttons and insert the batteries into the battery compartment.
Note: Batteries contain a corrosive acid that may leak and damage the belt-pack when stored for a long period. Batteries should be removed from the belt-pack before storing without use for more than 4 weeks.
When the transmitter is switched ON, the battery power LED (red) will blink once to indicate the batteries installed are in good condition. If the LED remains illuminated the batteries
have expired and require replacement.
GAIN setting (GT｜MT)
Gain control enables the user to set different output levels. GT is for the use of instrument with high impedance, such as guitar while MT is for the use of low impedance such as lapel or headset microphones.
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ISO 9001｜ISO 14001｜OHSAS 18001
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CHIAYO ELECTRONICS CO.,LTD.
Http://www.chiayo.com.tw｜Email: [email protected]
Office: 30, Lane 27, Section 4, Jen-Ai Road, Taipei 10685, Taiwan｜Tel: 886-2-27415741｜Fax: 886-2-27525242
Factory: 88, Chung-Hsiao Street 2, Chiayi 60080, Taiwan｜Tel: 886-5-2711000｜Fax: 886-5-5767611
