{"id":1010,"date":"2024-07-04T08:21:47","date_gmt":"2024-07-04T08:21:47","guid":{"rendered":"https:\/\/gztodun.com\/?post_type=product&p=1010"},"modified":"2024-07-04T08:21:47","modified_gmt":"2024-07-04T08:21:47","slug":"td990ua","status":"publish","type":"product","link":"https:\/\/gztodun.com\/index.php\/product\/td990ua\/","title":{"rendered":"TD990UA"},"content":{"rendered":"

True diversity one to two wireless microphone\"\"<\/span><\/h2>\n
\r\nFunction parameter \u25cfAdopt the world's advanced DPLL digital phase-locked loop multi-channel frequency synthesis technology and automatic noise control technology \u25cfUse UHF740MHz~790MHz frequency band to avoid interference frequency. \u25cfDual microphone design, two people can sing at the same time with hand-held microphone and invisible antenna. \u25cfAdopt true diversity receiving circuit design to ensure continuous speed within the effective distance and eliminate dead spots. \u25cfAdopt the latest high-frequency surface acoustic filter to filter out-of-band interference signals to the greatest extent. \u25cfUsing secondary frequency conversion high-frequency circuit design, it has extremely high sensitivity. \u25cfThe voice compression and expansion circuit greatly improves the signal-to-noise ratio. The unique voice compressor design prevents singers from cracking sounds even when they sing hard. \u25cfThe use of high-gain antennas effectively opens up the usable distance up to 100 meters. Complete input and output interfaces make it easy to connect various devices. \u25cfAny microphone in this system can be paired with any receiver, which completely solves the shortcomings of fixed frequency microphones and is suitable for multiple sets of products to be used on the same occasion. \u25cfOptional according to requirements: lavalier microphone or head-mounted microphone\r\n<\/span><\/pre>\n
Overall performance\r\n\u25cfCarrier frequency: UHF740MHz-790MHz\r\n\u25cfFrequency multiplication method: phase-locked loop synthesis frequency\r\n\u25cfNumber of channels: 200\r\n\u25cfBandwidth: 60MHz\u3000\r\n\u25cfDynamic range: >100dB\r\n\u25cfHarmonic distortion: \uff1c1%\r\n\u25cfFrequency response: 40Hz-50KHz\u00b13dB\r\n\u25cfAudio output: 0-400Mv(8dBu max)\r\n\u25cfUsing distance: 60M (open environment)\r\n\r\nwireless receiver\r\n\u25cfPower supply voltage: DC12-16V 500mA (AC100V-240V)\r\n\u25cfSignal to noise ratio: >105dB\r\n\u25cfFalse image interference ratio: >80dB\r\n\u25cfAdjacent channel interference ratio: >80dB\r\n\u25cfReceiving sensitivity: >25dBu (SIND=35dB)\r\n\r\nwireless transmitter\r\n\u25cfTransmit power: 10mW\r\n\u25cfModulation method: FM, F3E\r\n\u25cfMaximum modulation degree: \u00b140KHz\r\n\u25cfHigher harmonics: more than 35dB lower than the main wave reference\r\n\u25cfPower supply voltage: 2 1.5VAA batteries\r\n\u25cfContinuous use time: more than 8 hours\r\n\u25cfPower supply opening and closing noise: It has a complete switching noise elimination circuit<\/span><\/pre>\n
<\/pre>\n","protected":false},"excerpt":{"rendered":"
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