2.4G Wireless Microphone for Teachers ST-01 /wireless headset microphone-SINGDEN
UHF Wireless Conference System-micro
SU204
SU204is four channel wireless micro system consists of 4 sets independent UHF receiver module with 100 frequencies. It is designed for stage, conference room, school, church and many other applications. and made up of four wireless conference micros and 1 set equipped with mixer function of the receiving host composition. Working in UHF band, high-frequency circuits: adopt PLL phase lock loop control oscillations, audio lock code identification technology.
Audio circuits: using high-performance dynamic extension and intelligent mixing circuit! Provide the original sound signal real! In addition the machine is equipped with RS - 232 control interfaces for convenient control to central controller
MainFeatures:
- Operating frequency: 700-900MH
- CPU control with LCD display make operation 0easy and performance outstanding
- Adopt PLL combined technology, and the transmitter power is adjustable, they can be used several sets at the same time without interference.
- Multi-channel and high frequency, fully eliminate the interference signal
- With audio compressing-expanding technology, reduce the noises and increase the dynamic range
- The function restrains the howling, can effectively reduce the howling
- Receiver with multi-level high-frequency amplification, with high sensitivity
- Multi-level noise supervisory circuit, can the TONE-LOCKED system, so that it have a good anti-jamming features
- Excellent chips and quality components used to make this machine excellent sound quality
- 100 meters in the spacious place, 50 meters for the ideal using range
System Specifications
| Frequency Range | UHF range 807-829.600MHZ |
| Modulation Mode: | PLL |
| Bandwidth | 25MHz |
| Channel | 100 |
| Stability | +/-0.0005% |
| Dynamic Range | 100dB |
| Max Deviation | +/-80 KHz |
| Frequency Response | 100Hz-15 KHz+/-3dB |
| S/N | >105dB |
| Distortion | <0.5% |
Specifications of the Receiver
Receiving Mode: PLL synthesized oscillation mode
Inter Frequency: First 110MHZ, second; 10.7MHz
Antenna Type: BNC type/50 Ohms
Sensitivity: 12 dBµV (80dBS/N)
Sensitivity range: 12-32 dBµV
Spurious Emission: ≥75dB
Max audio output: +10 dBV
Spec of Transmitter: Antenna, Built
RF Output: Hi: 30mW: LO: 3mW
Spurious Emission: -60dB
Operation Battery: AA x 2
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