One drag four true diversity/large-scale performance wireless microphone

SKM4000PA

Functional features:

1. Ultra wideband UHF645MHz~685MHz, automatic signal selection, true diversity reception with dual channel receiving circuit.

2. The true diversity receiving system adopts two receiving circuits with the same channel to reduce the noise and leakage caused by radio frequency interference.

3. Adopting a 6.3mm unbalanced output and XLR XLR balanced output synchronous output design, it is convenient to connect various audio processing devices.

4. It has the function of [AFS] automatic search for clean and interference free frequencies within a range of 1 kilometer. After short pressing the SC/LOCK button, it will automatically search and lock on channels that are not affected in the actual working environment. Align the transmitter's frequency window with the receiver's [IR], and immediately make the transmitter automatically and accurately lock the receiver's working frequency point.

5. It has the [IR] infrared automatic frequency matching function. Simply press the ▲ button briefly to enter the manual frequency modulation mode. Adjust the [ADJ/VOL] knob to the appropriate frequency point, press the ▲ button briefly to confirm, and then press the [SET] button briefly to perform frequency matching.

6. A spacious and clear 2-foot LCD display with independent single channel can view the battery level, frequency signal, signal strength, audio power and other information status of the wireless unit; All silicone light guide buttons, display simple and neat; Successfully connected the microphone, the host display screen changes color in two colors, making the working status clearer.

7. A stable PLL phase locked oscillation circuit, combined with the "digital pilot" mute control function and the "noise detection" mute control function, can effectively block the noisy RF interference of computer devices, jukeboxes, and DVDs in the working environment.

system parameter

RF carrier frequency range: 645MHz~685MHz

Frequency stability: ± 0.005%

Effective working distance (ideal environment): 200m (meters)

Audio companding: AVA classic audio companding circuit

Audio frequency response: 50Hz~18KHz/± 3dB

Dynamic range:>105dB

Signal to noise ratio (A-weighted):>105dB

Total harmonic distortion:<0.6% @ 1KHz

Working temperature range: -10 ° C~+50 ° C

receiver

Chassis specification: EIA standard 1U

Receiving bandwidth: 645MHz~685MHz

Receiving channel: dual channel

Reception method: FM superheterodyne true diversity reception

RF sensitivity: When the offset is equal to 25KHz and the input is 5dBv, S/N ≥ 60dB

Silence adjustment: 10dB~30dB, adjustable by 5dB per step

Frequency synchronization method: IR Sync

Maximum output level: Maximum output+9dBV

Output level adjustment range: -3dB~+18dB, adjustable by 3dB per step

Audio output socket: 2 XLR XLR balanced sockets and φ 6.3mm unbalanced socket

Power supply method: 220VAC/50-60HZ12VDC/1A

Normal working current: DV12V, 330mA

Overall dimensions: 420mm (width) x 47mm (height) x 184mm (depth)

Net weight: approximately 1.8Kg

Handheld transmitter

The wireless handheld microphone has a novel appearance design, and the body is made of sturdy and durable all alloy material, effectively protecting internal circuit components and having a grip that conforms to ergonomic concepts.

Carrier bandwidth: 645MHz~685MHz

Oscillation mode: PLL phase locked frequency synthesis

Transmission power: 5mW/25mW

Carrier error: 0.5KHz

Harmonic radiation: Above 45dB below the main wave

Modulation method: FM modulation

Nominal/maximum frequency deviation: ± 45KHz

Maximum input sound pressure: Maximum input -11dBv

Frequency setting: IR Sync

Power supply method: 2 AA 1.5V batteries

Battery usage time:>8 hours

Boundary dimension: 38mm（ φ) X276mm long

Net weight: approximately 330g (excluding batteries)

Bodypack transmitter

Wearable wireless waist pack transmitter, beautiful and fashionable, agile and convenient.

Carrier bandwidth: 645MHz~685MHz

Oscillation mode: PLL phase locked frequency synthesis

Transmission power: 5mW/25mW

Carrier error: 0.5KHz

Harmonic radiation: Above 45dB below the main wave

Modulation method: FM modulation

Nominal/maximum frequency deviation: ± 45KHz

Input socket: 3-pin mini XLR socket

Maximum input sound pressure: Maximum input -12dBv

Frequency setting: IR Sync

Power supply method: 2 AA 1.5V batteries

Battery usage time:>8 hours

Overall dimensions: 85mm (height) x 67mm (width) x 22mm (depth)

Net weight: approximately 165g (excluding batteries)

Lavalier microphone

Color: Black

Pickup direction: single pointing

Sensitivity: -40.5dB ± 2dB

Output impedance: ≤ 2.2K Ω

Signal to noise ratio: ≥ 59dB

Mic size: φ 4.0 X 1.5mm

Frequency response: 20Hz~18KHz

Power supply voltage: 2-10V.DC

Line length: 1m

Headworn microphone

Color: Skin tone

Pickup direction: single direction

Sensitivity: -47dB ± 2dB

Output impedance: ≤ 2.2K Ω

Signal to noise ratio: ≥ 58dB

Mic size: φ 6.0 X 5.0mm

Frequency response: 45Hz~18KHz

Power supply voltage: 2-10V.DC

Line length: 1m

Peripherals