Product Name: diversity single-channel wireless receiver IX-R11 Series: Wireless Microphones microphone pointing schematic As these points to how it was for civilian FM microphone pickup, you can try to find a microphone. As shown, the arrow direction in front of the microphone are corrected, the dotted line is substantially the pickup range, outside this range, the pickup will be insensitive. If the conditions, the proposed multi-point or find a microphone to try super cardioid condenser microphone microphone, we can understand the significance of the point. Technical parameters: the number of single-channel group channel panel LCD display LCD can display RF / AF signal strength, SQ set microphone, transmitter battery capacity and operating frequency oscillation mode PLL frequency synthesizer phase-locked Frequency Stability ± 0.005% (10 ~ 50 ℃) Carrier frequency UHF: 721.100MHz ~ 860.100MHz RF Transmitter Output: 30mW maximum audio input level: -10dB audio output level XLR connectors: -13dBV, 1/4-inch fittings: -2 dBV output impedance XLR connector: 200 Ω 1/4 inch connector: 1kΩ XLR balanced output impedance Pin 1: ground, pin 2: (+), Pin 3: (-) Sensitivity: 12dB which usually leads to a "wind" wireless microphone choice or one-sided, you use, I use, whether suitable own applications, very few people get to the bottom. If the conditions are not so harsh or critical, big problems generally do not occur, especially in the channel was chosen. However karaoke OK conference microphone, in practical use, especially in the non-fixed installations, such as the case of highly mobile under shooting television programs, ambient conditions is difficult to predict, and receiving distance often changes, sometimes, does not exceed The range of the wireless microphone with technical indicators, but the reception has deteriorated, the crew was forced to shut down the results to adjust or reconsider pickup program, or even replace the equipment. For these cases, the recent film workers on a daily basis voices of several commonly used wireless microphone for a detailed and practical tests. Wireless microphone pickup problem involves not only the distance, but the sound quality issues involved, including distortion, noise, interference, stability and so on. FM civilian pickup microphone, microphone, conference facilities provided by Wuhan Wuhan Engineering Co., Ltd. Jiuhua video. Jiuhua Video Engineering Co., Ltd., Wuhan (www.jowa-tech.com) strong, credible, in Wuhan, Hubei control and adjustment equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improve Wuhan Jiuhua innovative ideas will lead into the brilliant video and you work for a better future!