window intercom systemDG-800 system uses UHF frequency band to transmit signals, which can prevent wireless microphones from being blocked by signals or being interfered by signals of other frequencies. The automatic frequency adjustment device receiver with patented technology automatically scans the entire receiving frequency band, and automatically adjusts to the outside world. The disturbed frequency, and then use the infrared transmission method to send the frequency setting parameters to the transmitter, so that the transmitter will lock according to the frequency set by the receiver. the

LCD display, using infrared frequency matching technology, 80 frequencies are optional for each channel, a total of 200 frequencies. Chassis specification: standard 1U chassis

Number of Channel Groups: Dual Channel

Carrier frequency band: UHF 513～558MHz / 615-665MHz/ 780-820MHz

Modulation method: FM

Oscillation mode: PLL phase-locked frequency synthesizer

Frequency stability: ±0.0005%

Sensitivity: When the offset is equal to 25KHz and the input is 6dBμV, S/N>60dB

Maximum offset: ±45kHz

Frequency bandwidth: 40MHz

Comprehensive S/N ratio: >108 dB

Combined T.H.D. : <0.4% @ 1 KHz

Integrated frequency response: 65Hz~18kHz ± 3dB,

Maximum output voltage: balanced: -20dBV/100Ω,

Unbalanced: -4dBV/5KΩ.

Output socket: XLR balanced and 6.3φ unbalanced socket

Effective working distance: generally 100 meters (open space)

Power supply: 100 - 240V AC50/60Hz, 10W

Weight: 4.3KG

Dimensions (mm) : 421 ( L ) × 43 ( H ) × 206 ( W ) Carrier frequency band: UHF 513～558MHz / 615-665MHz/ 780-820MHz

Oscillation mode: PLL phase-locked frequency synthesizer

Harmonic radiation: < -63dBm

Frequency bandwidth: 80MHz

Maximum offset: ± 45KHz

Power output: 3 0mW

Frequency response: 50Hz~18KHz

Maximum input sound pressure: 130dB SPL

Sound head: moving coil

Battery: AA×2

Current Consumption: <110 mA

Dimensions (mm) : 265mm lo× 56mm diameter