Frequency XD 870D Dual Channel Wireless Microphone
Features:
ST-870D was designed specifically for KTV entertainment places, has high stability and durable tube structure.
Dual channels UHF wireless system, each channel has 100 frequencies to select.
Backlit LED Display screen show RF and AF Signal Strength, power status, diversity channel show A/B, frequency, frequency group.
Adopt digital sound code lock technology, cut off noise and interference in the working entertainment.
Adopt newest automatic infrared ray technology, setup and operation is more easily.
The Two Handheld microphones can be used interchangeably, strong universality, metal pipe is solid, resist drop and abrasive.
Product Overview:
Dual channel AFS frequency automatic search function independently.The frequency can by synchronized between receiver and transmitter via infrared.Four channels which of volume and audio frequency control independently and 4+2 audio frequency output. Handheld, lavalier, headset can be mixed use. 6.LCD display shows status of frequency.
Technical Specification:
Parameters:
Operating frequency: 710-770MHz
Channel number: 200
Channel Spacing: 300KHZ
Frequency stability: ±0.005%
dynamic range: 100db
With FM Max frequency adjusting: ±45KHz
Frequency response: 40Hz-18KHz(±2db)
S/N ratio: 105dB
T.H.D distortion: 0.5%
Receiver:
Medium frequency: 110MHZ.10.7MHZ
ANT: TNC/50Ω
Sensitivity: 12dBuV (80db S/N)
Sensitivity adjusting Range: 12-32dBuV
Spurious noise suppression: ≥75dB
Maximum Output Level: +10dbv
Power supply mode: Input DC 12 v, 400 mA
Transmitter:
Output power: HIGH 30mW / LOW 3Mw
Audio frequency response: 40 to 18000Hz (+1 dB, -3 dB)
spurious noise suppression: -60dB
Power supply: 2*AA alkaline batteries 1.5V and be used 20 hours continuously
Dimension: 530 X 414 X 80mm
Manufacturing Warranty : 1 year
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