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Summary of Contents for YouXing U-778
- Page 1 User manual Model: U-778 Brand: YouXing ®...
- Page 2 Thank you for selecting UHF PLL Synthesized Diversity System. Before operating please read this instruction manual carefully and thoroughly in order to attain the correct operating procedures and achieve the best results. Parts Name And Function (Microphone)
- Page 3 1.A head of receiving sound There are packages of microphone in it. 2.Power switch Turn it,microphone is working. Push it the middle, it is pause working. 3.LCD manifestation. (You can see: the channel show, frequency show, electricity measure the manifestation) 4.Channel Selector.
- Page 4 2、Operation of the Microphone 1. Scrcw the battery box open anticlockwise, then put in a 1.5V battery. Attention: The polarity should be right. 2. Turn on the microphone .If the light does not twinkle or is always lighted, you should check the battery if the voltage is enough or the battery is well arranged.
- Page 5 Timbre becomes bad Perhaps the voltage of the battery is not enough. You need change. Perhaps there are the same frequency signals in your surroundings. Do not use two machines with the same frequency at the same time in a place.（separate them at least 120 meters.) Don't open and repair it when some serious breakdown happens.
- Page 6 IMAGE & SPURIOUS REJECTION: MORE THAN 80db BORDER UPON CHANNEL REJECTION: MORE THAN 80db RECEIVING SENSITIVTY: LESS THAN 10dBuV (SINAD=30dB) DE-EMPHASIS: 50us 3.HANDING MICROPHONE Modulation mode: FM, F3F Max deviation: ±25KHz Spurious emission: >40dB（with carrier) Battery voltage: 1.5V battery(Two AA batteries) Noise control: Perfectness circuit for eliminating noise 5.
- Page 7 case damage it seriously. 3.Please keep the machine from direct sunshine or rains, And put it in a place as far as possible from the magnetic field. 4.Don't open it yourself, because there is high voltage in it. 6.Caution 1.Since the installation of antenna influences the operating efficiency of the receiver, the most important rule is to minimized the distance between receiver antenna and microphone as short as possible for better reception and performance.
- Page 8 FCC Caution. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
- Page 9 more of the following measures: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement.
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