10
FEATURES & SPECIFICATIONS WIRELESS
WIRELESS WIRELESS NOTE
FCC Statement
This device complies with part 15 of the FCC rules. Operation is subject to the following two
conditions: (1)This device may not cause harmful interference and (2) This device must
accept any interference received, including interference that may cause undesired operation
Notice: The changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
IMPORTANT NOTE: To comply with the FCC RF exposure compliance requirements, no
change to the antenna or the device is permitted. Any change to the antenna or the device
could result in the device exceeding the RF exposure requirements and void user’s authority
to operate the device.
1. Introduction
Thank you for purchasing our product. This wireless microphone system operates in VHF
band frequency with crystal controlled. Please read this instruction manual carefully before
operating the system. This manual covers the function and operation of the wireless
microphone system.
2. Safety
Do not spill liquid on the appliance and do not drop it on a hard concrete floor.
Do not place the appliance near heat sources such as radiators, amplifier, or etc. Do
not expose it to direct sunlight, extremely dust, excessive moisture, or vibration.
Take out the battery from transmitter, if the appliance has been not used for a longer
period. This will avoid the damage resulting from a defective leaking battery
3. Environment
Do not throw used batteries into a fire or garbage bin with domestic rubbish. Be sure to
dispose of used batteries in accordance with local waste disposal rules.
When disposing the equipment, remove the batteries, separate the case, circuit boards,
and cables, and dispose of all components in accordance with local waste disposal rules.
4. Wireless Note
Before setting up, make sure that the transmitter and receiver are tuned to the same
frequency.
Do not use two transmitters in the same frequency.
Use good quality batteries to avoid the damage resulting from a defective leaking battery.
Turn the volume control on the receiver to adjust receiver output level to match input
level requirements of an audio mixer or amplifier.
While checking sound, move the transmitter around the area where you use the system
to look for dead spots. If you find any dead spot, change the receiver position. If it
does not work, avoid such places.
To avoid interference, do not put the receiver too near metal object and avoid
obstructions between transmitter and receiver.
Avoid the interference from TV, radio, other wireless appliances and etc.
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9. System Feature
Operating in VHF band frequency with quartz-locked controlled.
Squelch circuit design for external noise-free reception.
High quality design: audio frequency response 80Hz ~12 KHz, S/N ratio more than
100dB and T.H.D. less than 1%.
Effective range between receiver and microphone can reach over 30 meters (sight in
line).
Transmitter uses 2 x 1.5V AAsize batteries for low operating cost.
10. System Specification
Receiver
Carrier Frequency Range : VHF 150~260MHz
Frequency Stability : ±0.005% with quartz-locked control
S/N Ratio : ＞94dB, at RF=1mV
Image and Spurious Rejection : 80 dB minimum.
Receiving Sensitivity : at 10 dBμV over 80 dB S/N ratio.
Selectivity : ＞50dB
Dynamic Range : ＞96dB
Modulation Mode : FM.
IF Frequency : 10.7MHz
AF Response : 80Hz~12KHz (±3dB)
T.H.D. : ＜1% (at 1KHz)
Audio Output : Unbalanced output
Power Supply : DC 12V
Handheld / Bodypack Transmitter
Carrier Frequency Range : VHF 150~260MHz
RF Power Output : 10mW (max.)
Frequency Stability : ±0.005% with quartz-locked control
Maximum Deviation : ±15KHz
T.H.D. : ＜1% (at 1KHz)
Microphone Capsule : Handheld: uni-directional dynamic
or uni-directional electret condenser unit
Lavalier: uni-directional electret condenser unit
Operating voltage : 2 x 1.5V AA size batteries
Current consumption : 35mA ±5mAat 2.4V
