To preserve battery life, turn the transmitter off when not in use. To turn the transmit- ter off, slide the POWER ON/OFF (42) switch to the OFF position. The BATTERY STATUS LED (41) is not lit up, indicating the unit is off. The MUTE ICON (6) on receiver should be on, muting the audio out.

At power off the transmitter will store the last settings entered and re-display them at the next power on. The default factory setting is Group 11, Channel 01.

For optimum performance, an INPUT VOLUME LEVEL (43) is provided (for LT/ HM input mode operation only). Adjust the gain by turning the control with a small screwdriver. It is recommended that the level be set at about 1/2 maximum. Experi- ment and set for maximum possible gain without audible distortion on the high level peaks. (Note: Turning down the gain too much can compromise the signal-to-noise and it is not recommended.)

The microphone is now ready to use. The diversity A or B INDICATORS (9) on the U-800 receiver should now be lit, indicating a received signal from the transmitter. When ready to speak, slide the AUDIO MUTE ON/OFF SWITCH (40) to the ON position. The MUTE ICON (6) on receiver should be off. Adjust the volume of the receiver as per the Audio Output Microphone Connection section of the above U-800 receiver instructions.

Note: The transmitter has a removable ANTENNA (38). For best operating range, it should be attached (screwed on tightly counterclockwise, or exchange with another type.). For best transmitting power during use, make sure it is not blocked. For optimum range maintain line-of-sight (no obstructions) between the transmitter and the receiver whenever possible. A walk test before use will determine the operating range in your application. Note: Observe care in selecting P.A. volume, transmitter location and speaker placement so that acoustic feedback (howling or screeching) will be avoided.

Operating the UB-800 Transmitter

The POWER ON/OFF SWITCH (42) and the AUDIO MUTE ON/OFF SWITCH (41) switches have two positions for power ON/OFF and audio mute ON/Standby respectively. During normal operation with the unit powered on standby, slide the RF POWER (35) switch to the ON position. You will feel a slight click indicating the ON position is selected. The receiver’s RF INDICATOR (8) and diversity A/B INDICATOR (9) should now be on, indicating a received RF signal from the transmitter. When ready to transmit audio, slide the AUDIO MUTE (36) to ON to un-mute. To mute, slide the switch to OFF again. Adjust the volume of the receiver per the previous section, Connecting the Audio Output.

Note: Avoid acoustic feedback (howling or screeching) by taking care in selecting PA volume, transmitter location and speaker placement.

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Nady Systems U-800 owner manual
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U-800 specifications

The Nady Systems U-800 is a professional-grade wireless vocal microphone system designed for performers and speakers who demand clear sound and reliability. With advanced features and robust performance, the U-800 stands out in the crowded market of wireless audio equipment.

One of the key features of the Nady Systems U-800 is its UHF frequency range. Operating within the ultra-high frequency spectrum, this system provides a stable and interference-free signal. This is critical for live performances, as it minimizes the chances of audio dropouts or disruptions, ensuring that artists can deliver their best without technical difficulties.

The U-800 is equipped with a dual-channel receiver that allows for simultaneous operation of two microphones. This flexibility is ideal for duets, panel discussions, or any situation where multiple vocalists or speakers are needed. Each channel has its own volume control, providing users with the ability to balance sound levels seamlessly.

Signal strength is another vital characteristic of the U-800, featuring a dynamic range that offers clear high frequencies and deep lows, contributing to an overall rich sound quality. The system also employs advanced companding technology, which reduces unwanted noise and enhances the clarity of the audio being transmitted.

The microphone itself is lightweight and ergonomically designed for comfortable use, making it suitable for long performances or presentations. Additionally, it features a cardioid pickup pattern that helps isolate the desired sound source while minimizing background noise. This is particularly beneficial in live settings where crowd noise or other distractions may be present.

Battery life is a crucial aspect of any wireless system, and the U-800 does not disappoint. With efficient power management, the system offers extended battery life, allowing users to perform longer without the worry of battery depletion. It is also designed for quick and easy setup, with an intuitive interface that makes it accessible even for those who may be new to wireless systems.

In summary, the Nady Systems U-800 combines professional audio quality with user-friendly features, making it a reliable choice for musicians, entertainers, and speakers. Its UHF operation, dual-channel capability, excellent sound quality, and long battery life position the U-800 as a leading solution in the realm of wireless microphone systems. Whether for stage performances or public speaking events, the U-800 ensures that every word and note is transmitted with clarity and precision.
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