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One-to-four true split professional infrared frequency wireless conferencing (gooseneck) microphone SKM4500PBL


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Our company's UHF, 200-channel series wireless microphones utilize DPLL digital phase-locked loop multi-channel frequency synthesis technology and noise automatic control technology. Within a 50MHz frequency bandwidth and 250KHz spacing, it provides up to 200 channel selections. Lock control functions are selectable, and wireless gain connection is adjustable. Using infrared automatic channel tracking and system locking functions, any transmitter in this series can be paired with any receiver. This is especially suitable for using multiple sets of products in the same location.

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  • Product Description
  • Features:
    1. Our company's UHF, 200-channel series wireless microphones utilize DPLL digital phase-locked loop multi-channel frequency synthesis technology and automatic noise control technology. Within a 50MHz frequency bandwidth, with 250KHz intervals, it provides up to 200 channel selections. It features lockable control function selection, adjustable wireless gain connection function, and infrared automatic channel tracking and system locking functions. This ensures that any transmitter in this series can be paired with any receiver, making it especially suitable for using multiple sets of products in the same location.
    2. The display screen shows communication information. The large, clear, high-definition 2.5-inch LCD screen displays information such as the wireless unit's battery level, frequency signal, signal strength, and audio level.
    3. The frequency display screen changes color. The product's front panel features a double-layer, dual-color design, with an external RF receiving signal light and an AF audio level indicator light for clearer display of the receiver's operation. It has full silicone light guide keys and a neat and simple display.
    4. It adopts a 6.3mm unbalanced output and XLR cannon balanced output synchronous output design, facilitating connection to various audio processing devices.
    5. The base-style conference unit features a tabletop design, equipped with a 2-inch high-definition night crystal screen with high brightness, high contrast, wide viewing angle, and low power consumption. It displays the channel frequency, signal, power, and signal strength of the conference unit. It has dual switches and dual-color indicator lights, with no mechanical key sounds. The conference unit has a charging port and supports direct power supply or battery charging. It comes standard with 3 1.5V batteries, with a battery capacity of 1200mAh. The microphone boom has a built-in 2-unit super-cardioid condenser microphone core, with a maximum sound pickup distance of 1.5 meters and high-fidelity original sound. The unit has an independent volume adjustment knob, allowing for flexible placement of the conference unit at the meeting site. This diversified conference system is suitable for various sizes of meeting venues.
     
    System Parameters:
    Operating Frequency: UHF 640.250MHz-690MHz
    Modulation Method: Wideband FM
    Number of Channels: 200
    Channel Spacing: 250KHz
    Frequency Stability: ±0.005%
    Dynamic Range: 100dB
    Deviation: ±45KHz
    Audio Frequency Response: 80Hz-18KHz (±3dB)
    Comprehensive Signal-to-Noise Ratio: >105dB
    Comprehensive Distortion: ≤0.5%
    Operating Distance: 80m (under ideal conditions)
    Operating Ambient Temperature: -10℃~+50℃
    Receiver Specifications:
    Receiver Method: Double Conversion Superheterodyne
    Intermediate Frequency: First IF: 110MHz, Second IF: 10.7MHz
    Antenna Input: 4 BNC /50Ω
    Sensitivity: 12dB V(80dB S/N)
    Sensitivity Adjustment Range: 12-32dB V
    Spurious Suppression: ≥75dB
    Level: +10dBV
    Audio Output Jack: 4 XLR Cannon Balanced Jacks and φ6.3mm Unbalanced Jacks
    Power Supply: 220VAC/50-60HZ 12VDC/1A
    Normal Operating Current: DV12V, 330mA
    Size: 525mm(W)x136mm(H)x325mm(D)
    Net Weight: Approx. 1.8Kg
     
    Transmitter Specifications:
    Microphone Type: The conference uses a high-end array microphone core, which can pick up sound within a 100CM range, with a super-cardioid electret condenser microphone;
    Frequency Response: 80Hz~16KHz;
    Microphone Input Impedance: 1KΩ;
    Sensitivity: -46 dBV/Pa;
    Maximum SPL: 100dB(THD>3%);
    Signal-to-Noise Ratio: >80dB(A);
    Crosstalk: >70dB
    Dynamic Range: >80dB;
    THD: <0.1%;
    Maximum Power Consumption: 4 W;
    Sound Pickup Distance: 1.5 meters
    Compliance Standard: IEC60914;
    Power Supply: Battery power/Type-C charging port direct power supply;
    Display Screen: 2-inch color screen;
    Installation Method: Desktop;
    Size (W、D、H): 160x 110x 60mm excluding microphone boom
    Boom Length: 420mm long boom, replaceable microphone boom (black)
    Standard configuration of 3 1.5V batteries, with a battery capacity of 1200mAh, can last for 10 hours of speech or 12 hours of continuous use

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