Yinfeng Audio Electronic Factory
Main products:Professional Audio
Contact Us
  • Contact Person : Ms. lv Freda
  • Company Name : Yinfeng Audio Electronic Factory
  • Tel : 86-20-34832239
  • Fax : 86-20-34835131
  • Address : Guangdong,Guangzhou,Minying Industrial Zone Fuchong Shawantow
  • Country/Region : China
  • Zip : 511483

U-3990 Professional uhf wireless microphone

U-3990 Professional uhf wireless microphone
Product Detailed
1. uhf wireless microphone 2.CPU control 3.Antenna Diverity receiving 4.LCD dynamiic display

Professional uhf wireless microphone

CPU control

phase-locked loop control

predictive diversity

LCD dynamic display

100 channels tunable

Front settings for Operating Distance, Display Mode and System Locking


Frenquency ranges UHF 500MHZ-960MHZ(tunable)

Modulation mode:FM(PLL)

Nominal/Peak Deviation:±25kHz/≤±48kHz

Frequency stability:≤ ±15ppm

AR frquency response:60Hz~18kHz

S/N(1mV therefore and peak deviation): ≥110dB(A)

T.H.D (at nominal deviation and 1kHz):≤1%

Temperature Range:-10 oC ~ +55oC



receiver priciple: True diversity

Sensitivity (peak dviation) :3uV(52db S/N)

AF output voltage (at peak deviation 1kHz AF out):

Balanced: + 10dB(XLR)

Unbalanced:+4dB(1/4", 6.3mm jack socket)

F/N ratio: ≥80dB

P/N ratio:≥80dB


RF output power at 50Ω:8mW ~ 30mW

RF squelch:>50dB.


U-3990 Professional uhf wireless microphone

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