Nady U-800 GT UHF 800-Channel PLL Synthesized Wireless Guitar System User Manual

Introduction

Thank you for choosing the Nady U-800 GT UHF 800-Channel PLL Synthesized Wireless Guitar System. This system provides reliable, high-quality wireless audio transmission for your guitar or other instrument, offering freedom of movement on stage or in the studio. With 800 selectable UHF channels, it ensures clear, interference-free performance.

Important Safety Information

Please read and follow all instructions carefully before operating this device. Keep this manual for future reference.

Do not expose this unit to rain or moisture.
Do not place near heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
Only use attachments/accessories specified by the manufacturer.
Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way.
Ensure proper ventilation and do not block any ventilation openings.
Dispose of batteries properly according to local regulations.

Package Contents

Verify that all items listed below are included in your package:

U-800 GT UHF Wireless Receiver
UB-800 UHF Wireless Transmitter
Instrument Cable (1/4" to mini XLR)
Power Adapter (for receiver)
2 x AA Batteries (for transmitter)
User Manual (this document)

Nady U-800 GT Wireless Guitar System components: receiver and bodypack transmitter with instrument cable.

Image: The Nady U-800 GT wireless receiver and UB-800 bodypack transmitter, along with the instrument cable, illustrating the main components of the system.

Nady power adapter for the wireless receiver.

Image: The included power adapter, used to power the U-800 GT wireless receiver.

Product Overview

U-800 GT Wireless Receiver

Image: Front panel of the U-800 GT receiver, showing the power button, display, and channel selection controls.

Power Button: Turns the receiver on/off.
Antennas: For receiving UHF signals from the transmitter.
LCD Display: Shows channel number, frequency, RF/AF levels, and battery status.
UP/DOWN Buttons: For selecting channels.
MENU Button: For accessing system settings.
ASC™ (Automatic Channel Scan): Automatically finds clear channels.

Rear view of the Nady U-800 GT wireless receiver.

Image: Rear panel of the U-800 GT receiver, displaying the unbalanced out, DC input, volume control, and balanced out connections.

DC INPUT: For connecting the power adapter.
UNBALANCED OUT (1/4" Jack): Standard instrument output.
BALANCED OUT (XLR): Professional audio output for mixers/PAs.
VOLUME: Controls the audio output level.

UB-800 UHF Wireless Transmitter

Front view of the Nady UB-800 UHF wireless bodypack transmitter.

Image: The UB-800 bodypack transmitter, showing its compact design and antenna.

Nady UB-800 UHF wireless bodypack transmitter with instrument cable connected.

Image: The UB-800 bodypack transmitter with the instrument cable connected, ready for use with a guitar.

Antenna: For transmitting UHF signals to the receiver.
Input Jack (Mini XLR): For connecting the instrument cable.
Power/Battery LED: Indicates power on and low battery status.
Power Switch: Turns the transmitter on/off.
Gain Control: Adjusts input sensitivity for different instruments.
Battery Compartment: Holds 2 x AA batteries.

Setup Instructions

Receiver Placement: Place the U-800 GT receiver in a location free from obstructions and away from other electronic devices that may cause interference. Ensure the antennas are fully extended and positioned vertically.
Connect Power: Connect the supplied power adapter to the DC INPUT on the rear of the receiver and plug it into an AC outlet.
Connect Audio Output:
- For standard instrument amplifiers or pedals, use a 1/4" TS cable (not included) from the UNBALANCED OUT jack to your amplifier's input.
- For professional mixers or PA systems, use an XLR cable (not included) from the BALANCED OUT jack to a balanced input on your mixer.
Install Transmitter Batteries: Open the battery compartment on the UB-800 transmitter and insert 2 x AA batteries, observing correct polarity. Close the compartment.
Connect Instrument to Transmitter: Connect one end of the supplied instrument cable (1/4" jack) to your guitar or instrument, and the mini XLR end to the INPUT jack on the UB-800 transmitter.
Power On Receiver: Press the POWER button on the receiver. The LCD display will illuminate.
Select Channel: Use the ASC™ (Automatic Channel Scan) function by pressing and holding the MENU button for 3 seconds, or manually select a channel using the UP/DOWN buttons. Choose a clear channel with no interference.
Power On Transmitter: Turn on the UB-800 transmitter. The Power/Battery LED should illuminate.
Sync Transmitter and Receiver: Ensure the transmitter and receiver are set to the same channel. The receiver's RF indicator should light up, indicating a strong signal.
Adjust Gain: Play your instrument and adjust the GAIN control on the transmitter to prevent clipping (distortion) while ensuring a strong signal. Adjust the VOLUME control on the receiver for the desired output level.

Operating Instructions

Channel Selection

The U-800 GT system offers 800 selectable UHF channels to avoid interference. It is crucial to select a clear channel before each use, especially in environments with multiple wireless systems.

Automatic Channel Scan (ASC™): Press and hold the MENU button on the receiver for approximately 3 seconds. The receiver will scan for the clearest available channel and automatically set itself to that frequency.
Manual Channel Selection: Press the UP or DOWN buttons on the receiver to cycle through available channels. Observe the RF indicator on the display; a strong, steady signal indicates a good channel.
Once a channel is selected on the receiver, ensure the transmitter is also set to the exact same channel. Refer to the transmitter's manual for specific channel setting procedures if not automatically synced.

Battery Management

The UB-800 transmitter operates on 2 x AA batteries. The Power/Battery LED on the transmitter indicates battery status:

Green: Normal operation.
Red (or flashing red): Low battery. Replace batteries immediately to avoid signal loss.

Always carry spare batteries, especially for live performances.

Optimizing Performance

Maintain a clear line of sight between the transmitter and receiver antennas.
Avoid placing the receiver near large metal objects or other wireless devices.
Keep the transmitter and receiver within the recommended operating range (typically up to 100 meters / 300 feet, depending on environment).
Adjust the receiver's VOLUME control to match the input sensitivity of your amplifier or mixer.

Maintenance

Cleaning: Use a soft, dry cloth to clean the exterior of the receiver and transmitter. Do not use liquid cleaners or solvents.
Battery Storage: If the transmitter will not be used for an extended period, remove the batteries to prevent leakage and damage.
Antennas: Handle antennas carefully. Do not bend them excessively or apply undue force.
Cable Care: Store the instrument cable without sharp bends or kinks to prolong its life.

Troubleshooting

Problem	Possible Cause	Solution
No sound or intermittent sound.	Transmitter/Receiver not powered on. Batteries in transmitter are dead or low. Transmitter and receiver on different channels. Interference from other devices. Instrument cable faulty or disconnected. Receiver output volume too low.	Ensure both units are powered on. Replace transmitter batteries. Set both units to the same clear channel. Perform an ASC™ scan or manually select a new channel. Move away from interference sources. Check all cable connections. Try a different cable. Increase receiver VOLUME.
Static or noise.	Channel interference. Weak signal (too far from receiver). Gain on transmitter too high or too low.	Scan for a clearer channel. Reduce distance between transmitter and receiver. Ensure line of sight. Adjust transmitter GAIN.
Receiver display not working.	No power to receiver.	Check power adapter connection and AC outlet.

Specifications

Model	U-800 GT
Frequency Range	UHF (800 selectable channels)
Receiver Dimensions	28.19 x 29.21 x 6.35 cm (approx.)
Item Weight	1.27 kg (approx.)
Transmitter Power	2 x AA Batteries
Receiver Power	DC 16-20V (via included adapter)
Outputs	1/4" Unbalanced, XLR Balanced

Warranty and Support

Nady Systems, Inc. warrants this product to be free from defects in material and workmanship for a period of one year from the date of original purchase. This warranty is non-transferable and applies only to the original purchaser.

What is Covered: Repair or replacement of defective parts and labor.

What is Not Covered: Damage caused by accident, misuse, abuse, unauthorized modification, improper installation, power surges, or normal wear and tear. Batteries are not covered by this warranty.

To Obtain Service: If your product requires service, please contact Nady Systems, Inc. customer support. Do not attempt to repair the unit yourself. Proof of purchase is required for all warranty claims.

For further assistance or technical support, please visit the official Nady Systems website or contact their customer service department.

NADY U-800-GT