TD6900c/d

Wireless conference attendance unit microphone

◆ Working power supply: DC 3.7V — 4.5V

◆ Power consumption: standby ≦360mW, talking state ≦630mW

◆ Working temperature -10℃ — 40℃

◆ Microphone length: 400mm

◆ Dimensions (W×H×D): 148mm×57mm (excluding microphone pole)×165mm

◆ Weight: 0.63 kg

audio channel

◆ Communication method: UHF wireless method (one-way)

◆ Number of channels: 5 (1 chairman unit channel, 4 representative unit channels)

◆ Frequency range: (frequency range is available in the range of 610MHz — 664.75MHz)

◆ Modulation method: FM

◆ Maximum modulation amount: 60K

◆ Radiated power: ≦+9dBm

◆ Frequency deviation: <0.002

◆Reference speaking distance: 10cm–30cm

control channel

◆ Communication method: wireless (two-way)

◆Number of channels: 16

◆ Frequency range: 422.4MHz — 439.4MHz

◆ Modulation method: FSK

◆ Receiving sensitivity: -100dBm

◆ Radiated power: ≦+6dBm

◆ Frequency deviation: <0.002

System total parameter indicators

◆ Signal coverage: indoor radius 60 meters (excluding the use of antenna extenders or antenna amplifiers)

◆ Audio frequency response: 50Hz — 15KHz

◆ Total audio gain: ≦20dB

◆ Signal-to-noise ratio: >85dB

◆ Audio total harmonic distortion: ≦0.8%