Dual Channel True Diversity Pro Headset Microphone Belt Pack Microphones
Features:
1. True diversity receiver, dual channel independent signal selection system, which can minimize the occurrence of frequency interruption
2. Dual channel independent AFS frequency automatic search function, which can quickly scan and lock the frequency with the least interference in the working environment
3. The receiver and transmitter use IR infrared frequency matching technology to synchronize the code with one click
4. Professional performance level phase locking circuit, combined with noise locking noise control and digital pilot technology, when the transmitter is turned off, the pilot control mutes the AF signal to suppress noise, while also silencing the corresponding receiver. It ensures effective blocking of interference signals
5. The backlit LED display screen indicates the RF and AF signal strength, battery status, diversity channel indication (A/B), frequency, frequency group/channel, and other operating states
6. Adopting the latest developed "Audio Reference Compression Extension" patented technology, it has excellent dynamic response and excellent sound quality
7. True diversity wireless systems are designed specififically for touring and fifixed installation purposes, providing the highest reliability, sound quality, and transmission stability
| Model |
MPRO-22BD |
| Frequencies |
200 selectable frequencies within a 50MHz bandwidth |
| Receiver |
|
| Operating frequency |
640-690MHz |
| Control |
Microcomputer CPU control |
| Oscillating mode |
PLL phase-locked loop frequency synthesis technology with 2*100 channels for free selection of multifunctional LCD. |
| S/N signal-to-noise ratio |
>105dB |
| T.H.D distortion |
<0.5% |
| Frequency response |
40Hz-18KHz |
| Launcher |
|
| Working frequency |
640-690MHz |
| Control |
Microcomputer CPU control |
| Oscillating mode |
PLL phase-locked loop frequency synthesis technology with 2*100 channels for free selection of multifunctional LCD.
Unique audio/RF level display, battery voltage display, infrared frequency matching |
| Frequency stability |
± 0.002 |
| Pickup gain adjustment knob |
-20dB to+35dB |
| FM maximum modulation frequency deviation |
± 45KHz |
| RF output power |
High 10mW/low 5mW |
| High order harmonics |
Above 60dB below the main wave reference |
| Using batteries |
2 AA batteries - can be used continuously for about 8 hours |
| RF transmission frequency range |
640-690 MHz |
| Working range |
100 meters (350 feet) under typical conditions, 300 meters (900 feet) at a straight outdoor distance
Note: The actual working range depends on RF signal absorption, reflection, and interference |
| Audio frequency response |
40-18000 Hz, (+1 dB, -3 dB)
Note: The overall system frequency response depends on the selected microphone unit |
| Material |
Aluminum alloy |
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