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Product Detail
Technical specifications of KE-290A/B microphone:
Unique cavity design, combined with pickup correction technology, truly captures every sound detail
Clear and bright indicator light ring, can be turned off separately as needed
Spray paint surface treatment, anti-interference, anti-static
● Microphone and base split design structure
Product parameters
Working power supply: DC3V (powered by 2 No. 5 batteries, with long continuous working time)
Working current: standby ≤ 110mA, speaking state ≤ 180mA
Voice communication: UHF wireless mode (unidirectional)
Frequency range: The frequency range is between 640MHz and 690MHz
Band width: 30MHz
RF power output: 20mW
Battery consumption:<200mA
Maximum modulation amount: 60K
Radiated power: ≤+9dBm
Frequency deviation:<0.002
Reference speaking distance: 10cm-50cm
Working temperature -10 ℃ -45 ℃
System data control communication indicators
Communication mode: UHF wireless mode (bidirectional communication)
Frequency range: 422.4MHz -438.4MHz
Modulation method: FSK
Receiver sensitivity: -100dBm
Radiation power: ≤+10dBm
Frequency deviation:<0.002
Base size: 110 * 137 * 60mm
Gooseneck length: 400mm
Weight: 750g
