DSPPA True Diversity UHF Wireless Microphone System

D7821

• 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-690MHz.

• Signal-to-noise ratio of ≥105dB for high-quality audio.

• Approximately 7 hours of battery life for extended use.

• 200 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.

Model	D7821	D7822	D7823	D7824
Receiver	Channel Configuration	Diversity dual-channel
Operating Frequency Range	UHF 610MHz-690MHz
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
Transmitter	Operating Frequency Range	610MHz-690MHz
Modulation Mode	Wideband FM
Channel Features	Supports 200 Channels, 300KHz Channel Spacing
Pickup Type	Dynamic, Cardioid	Condenser	Condenser	Condenser
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 7 hours of operation)
Effective Transmission Distance	150 meters (Ideal conditions)
Operating Temperature Range	-10℃ to +50℃