AIR-812
ISO 9001
REGISTERED
INTERNATIONAL
ISO
14001
ISO 14001
REGISTERED
INTERNATIONAL
OHSAS
18001
OHSAS 18001
UHF Dual Channel 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:
a receiver
two handheld/belt-pack transmitters
a pair of antennas
an adaptor
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
1
Rear panel
5 6 7
8
9
10 11
12 13
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
8. CH2 squelch control. Clockwise to increase level.
9. Antenna B (TNC socket)
14
15
16
17
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)
15. CH1 squelch control. Clockwise to increase level.
16. DC input
17. Antenna A (TNC socket)
1
ISO 9001 ｜ ISO 14001 ｜ OHSAS 18001
Adjusting VOLUME level
Volume level can be adjusted by rotating the designated volume knob.
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
1. 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.
2. The transmitter should also be at least 1m away from a wall or metal surface to minimize reflections.
3. The transmitter should also be at least 1m away from the receiver.
4. Keep antennas away from noise source such as motors, automobiles, neon light as well as large metal objects.
2
Audio connection
There are 2 unbalanced audio output jacks, AF1 and AF2 , on the receiver rear panel. AF1 is for channel 1 while AF2 for channel 2.
¼” PHONE PLUG connector provides unbalanced audio output signal from this jack to the mixer/amplifier.
Use an audio output cable with ¼” PHONE PLUG connectors. Connect one end from the unbalanced output jack of the receiver, and the other end to the “
LINE IN
” or “
MIC
IN ” jack of the mixer/ amplifier.
■ Channel 1+2 mixed output / Channel 2 separate output
CH1+CH2 mixed audio output: MIX SWITCH to ON
Only CH2 audio output: MIX SWITCH to OFF
■ Channel 1+2 separate output
CH1, CH2 separate audio output: MIX SWITCH to OFF
Level switch setting : When connecting to the LINE /AUX IN of a mixer/amplifier, switch to
“ LINE ” position. DO NOT use the “ MIC ” position as they may not deliver a sufficient high output level. When connecting to the “
MIC IN
” jack of a mixer/amplifier, switch to “
MIC
” position.
Overload distortion may occur at the wrong level position.
■ Connecting to the MIC IN
■ Connecting to the LINE /AUX IN
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
