Reception Method
True diversity reception
Product Overview
The Harmonai UM-620 is a professional-grade UHF wireless microphone system featuring true diversity reception and advanced digital pilot tone technology, ensuring stable signal transmission even in complex electromagnetic environments. Each channel offers 100 usable frequencies—200 total—enabling multiple systems to operate simultaneously without interference. Equipped with infrared one-touch frequency sync and auto-scan functionality, operation is fast and intuitive. With an effective operating range of up to 200 meters, it’s ideal for stages of all sizes, karaoke venues, outdoor performances, and home entertainment.
Key Features
True Diversity Reception: Delivers more stable and reliable signal coverage, optimized for large-scale applications.
200 Usable Frequencies: 100 per channel—effortlessly supports multiple concurrent systems.
Infrared One-Touch Frequency Sync: Automatically searches and matches frequencies with a single press—simple and efficient.
Auto-Scan: Intelligently identifies interference-free frequencies and initiates frequency sync automatically.
Multifunction Display: Real-time monitoring of RF/audio signal levels and transmitter battery status.
200-Meter Effective Range: Extended coverage in open areas—ideal for large venues.
Technical Specifications
Number of Usable Frequencies
100 frequencies per channel, 200 total
Interference Suppression Technology
Digital pilot tone technology; multiple systems operate simultaneously without mutual interference
Frequency Sync Method
Infrared frequency sync, one-touch sync
Auto-Scan
Automatically searches for interference-free frequencies and enters sync mode
Display
Multifunction display showing RF/audio signal levels and battery level
Effective Operating Distance
Up to 200 meters in open, unobstructed environments
Reception System
PLL phase-locked loop system with CPU programmable control
Signal-to-Noise Ratio (SNR)
>110dB
Total Harmonic Distortion (THD)
<0.5%
Frequency Response
50Hz–15kHz ±3dB
Squelch Control
Noise lock + tone decoding navigation lock
Transmitter Operating Frequency
UHF 640–690MHz
Frequency Stability
±3ppm
Harmonic Suppression
>60dB
Transmitter Output Power
10mW
Modulation Method
FM
Battery Specification
3V (two AA 1.5V batteries)
Battery Life
Approximately 8 hours of continuous use
Applications
The Harmonai UM-620 wireless microphone system is suitable for a wide range of scenarios—including live stage performances of all scales, karaoke bars (KTV), outdoor events, conference presentations, and home entertainment. Its 200-meter effective transmission range and multi-system compatibility make it an ideal choice for professional performances and large-scale events.
For detailed technical information or bulk procurement options for the Harmonai UM-620 wireless microphone system, contact our professional team for technical support and customized quotations.
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