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Dual-channel diversity design with PLL phase-locked loop frequency control.
True Diversity Technology for stable signal reception.
Transmission range up to 150 meters.
UHF frequency range of 610MHz-670MHz.
Signal-to-noise ratio of ≥105dB for high-quality audio.
Up to 8 hours of battery life for extended use.
160 channels with 300KHz spacing for flexibility.
Wide frequency response from 45Hz to 16kHz.
Ideal for professional applications like conferences and live performances.
Compact and user-friendly design for easy setup.
Professional stage, UHF PLL design, excellent sound quality, multiple channels available.
The D7821 True Diversity UHF Wireless Microphone System offers stable signal transmission over 150 meters with a UHF frequency range of 610MHz-670MHz. It features True Diversity technology, a signal-to-noise ratio of ≥105dB, and up to 8 hours of battery life. This system is perfect for professional audio applications such as conferences, live performances, and events, ensuring clear, reliable sound in various environments.
Model | D7821 |
Receiver | |
Channel Configuration | Diversity dual-channel |
Operating Frequency Range | UHF 610MHz-670MHz |
Frequency Stability | ±0.005%, PLL Frequency Control |
Effective Transmission Distance | 150 meters (Open Environment) |
Sensitivity | -98dBm |
Audio Performance | Maximum Deviation: ±75KHz Frequency Response: 45Hz-16kHz (±3dB) Signal-to-Noise Ratio (S/N): ≥105dB (1KHz-A weighted) Total Harmonic Distortion (T.H.D.): ≤0.5% |
Output Interface | XLR balanced output, Ø6.3mm unbalanced output (maximum output +10dB) |
Power Supply | DC12V/1A |
Wireless Handheld Microphone | |
Operating Frequency Range | 640MHz-690MHz |
Modulation Mode | Wideband FM |
Channel Features | Supports 160 Channels, 300KHz Channel Spacing |
Pickup Type | Dynamic, Cardioid |
Transmission Power | <10mW |
Antenna Type | Built-in Antenna |
Audio Performance | Frequency Response: 45Hz-16kHz (±3dB) Spurious Suppression: -50dB |
Power Supply | 2 AA Alkaline Batteries (Supports approximately 8 hours of operation) |
Effective Transmission Distance | 150 meters (Ideal conditions) |
Operating Temperature Range | -10℃ to +50℃ |
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