Nady 4W-1KU QUAD Wireless System Owner's Manual

Introduction

Thank you for choosing the Nady 4W-1KU QUAD wireless system. This system offers the best performance and price value in professional UHF wireless, providing clear-channel, frequency-agile operation on the UHF band for interference-free performance. The Nady 4W-1KU QUAD system features four independent UHF receivers, each delivering 1000 user-selectable channels with auto-scan for easy finding of clear channels. Frequencies are synthesized in pre-programmed 00-09 groups and 00-99 channels within the U.S. Band 3 (520.000-544.975MHz) or the International Band 2 (795.000-819.975MHz) ranges. The system utilizes proprietary companding and low-noise circuitry for an industry-best 120dB dynamic range and clear, natural sound.

Using This Manual

This booklet provides instructions for operating the 4W-1KU system. It includes a description of features, a quick user controls guide, step-by-step operation guides for each unit, system specifications, a troubleshooting guide, miscellaneous tips, and servicing information. Refer to the Nady 4W-1KU frequency guide for specific frequency bands and channels.

System Features

4W-1KU Receiver

• State-of-the-art PLL UHF performance with 120dB dynamic range and operation up to 500 feet line-of-sight.
• Four complete and independent wireless receivers with 1000 user-selectable UHF frequencies for simultaneous operation of four transmitters.
• True Diversity circuitry with two complete front ends per receiver for maximizing range and eliminating signal dropouts.
• AUTO-SCAN and ASC™ (Auto-Sync Channel) IR download feature for locating clear channels and synchronizing transmitter frequency via IR sender.
• Sophisticated IF filtering for simultaneous operation of multiple systems in the same location.
• Front panel touch control buttons and user-friendly LCD configuration menus.
• Backlit LCD display indicating selected Group, Channel, RF signal strength meter, Audio Output Volume level, and Diversity A/B LED indicators.
• Back panel connections include Balanced XLR Mic level and Unbalanced 1¼" SUM Line level audio outputs, squelch control, RF BNC connectors for dual removable 1/2 wave antennas, and a DC power input jack.
• Externally powered (adapter included).
• Rugged all-metal housing, 1U rack-mountable with supplied rack ears (front antenna mount kit optional).
• Compatible with any four combinations of available instrument, handheld, and lavalier UHF transmitters.

HT-1KU Handheld and BT-1KU Bodypack Transmitters

• Choice of transmitters: HT-1KU or BT-1KU, each with 1000 easily selectable channels, manually or via IR Sync download from the receiver.
• HT-1KU Handheld transmitter: Sleek, durable all-metal housing; power Off/On switch; internal antenna system; superior neodymium cartridge for clear, powerful audio, maximum feedback rejection, and minimal handling noise.
• BT-1KU Bodypack transmitter (versions: LT, LT/HM, or GT): Road-worthy all-metal case; power Off/Mute/On switch; flexible external antenna rod; mini locking connector for lapel (LT), Headmic™ (LT/HM), or instrument (GT) applications.
• Both HT-1KU and BT-1KU transmitters feature LCD displays showing selected Group, Channel, Audio Input Levels, and Battery status.
• Transmitting High/Low RF power switch for optimizing distance operation.
• Operates with two AA batteries (alkaline or rechargeable NiMH) for long, economical battery life.

Quick User Controls Guide - 4W-1KU Receiver: Front View

The front panel of the 4W-1KU Receiver features several controls and indicators:

• 1. POWER BUTTON: Press for one second to turn receivers ON/OFF ?.
• 2. DIVERSITY A/B INDICATOR: Shows which receiver (A or B) is active when a transmitter is on.
• 3. AF PEAK LED: Flickering GREEN indicates normal audio; solid GREEN indicates maximum allowable audio.
• 4. IR Infrared LED transmitter window: For linking the receiver to the transmitter for frequency download.
• 5. AUTO-SCAN/ASC (IR SYNC) BUTTON: Long press (~2 seconds) for AUTO-SCAN to find a clear channel ?. Short press (~1 second) to initiate IR link for frequency synchronization with the transmitter.
• 6. SET BUTTON: Scrolls through the LCD menu and sets selected functions.
• 7. UP/DOWN BUTTONS: Change receiver output Volume Level, or step through Group/Channel selections ⬆️/⬇️.
• 8. LCD DISPLAY: Shows A-B Diversity status, Group (00-09), Channel (00-99), RF signal strength (1-6 bars), and Volume Levels (0-63).
• 9. FREQUENCY GROUP: Indicates the selected GROUP (00-09).
• 10. FREQUENCY CHANNEL: Indicates the selected CHANNEL (00-99).
• 11. SUM VOLUME LEVEL: Indicates the selected LINE output level (00-63).
• 12. RF SIGNAL METER: Shows received signal strength in 1-6 bars.

Quick User Controls Guide - 4W-1KU Receiver: Back View

The back panel of the 4W-1KU Receiver provides connectivity options:

• 13. RACK EARS: Integrated left and right rack ears for mounting.
• 13a. ANTENNA EXTENSION CABLES (Optional): Coax cables with BNC connectors to route antennas to the front.
• 14. RF CONNECTORS (ANTENNA JACK A): For RF True Diversity reception.
• 15. BALANCED MIC OUT: Audio output for each receiver (fixed Mic level) via XLR jacks.
• 16. MUTE (SQUELCH) CONTROLS: Adjusts mute level per receiver to minimize noise from RF interference. Turn CW for maximum range, CCW for minimum range.
• 17. UNBALANCED AUDIO OUT SUM: Volume-level adjustable LINE output for all four receivers.
• 18. DC INPUT JACK: For connecting the external DC adapter.
• 19. RF CONNECTORS (ANTENNA JACK B): For RF True Diversity reception.
• 20. DC POWER SUPPLY UNIT: AC adapter connecting to the DC Input Jack.
• 21. ANTENNAS: 1/2 wave antennas connect to A/B Antenna Jacks (14, 19).

Quick User Controls Guide - HT-1KU Handheld Transmitter

The HT-1KU Handheld Transmitter features the following controls:

• 22. BATTERY COVER: Unscrew to insert two AA alkaline batteries.
• 23. MIC BALL: Windscreen/dust cover for the microphone.
• 24. LCD DISPLAY: Shows Group, Channel, Audio Input Level, and Battery status.
• 25. UP/DOWN BUTTONS: Change Group/Channel or Volume Level, or light up the display ⬆️/⬇️.
• 26. SET BUTTON: Scrolls through the LCD menu and sets functions.
• 27. RF POWER SWITCH: Selects High or Low output power.
• 28. POWER ON/OFF SWITCH: Slides to turn the unit ON or OFF ?.
• 29. INTERNAL ANTENNA: Built-in antenna.
• 30. FREQUENCY GROUP: Indicates selected GROUP (00-09).
• 31. FREQUENCY CHANNEL: Indicates selected CHANNEL (00-99).
• 32. INPUT VOLUME LEVEL: Indicates input audio level (0dB to -30dB).
• 33. BATTERY METER: Shows battery status (5 bars = 100%, 1 bar = 20%). Flashing "BATT" indicates replacement needed.
• 34. IR RECEPTOR SENSOR/WINDOW: Infrared LED sensor for IR frequency download from the receiver.
• 35. BATTERY COMPARTMENT: Holds two AA batteries.
• 36. TWO AA ALKALINE BATTERIES: Power source.

Quick User Controls Guide - BT-1KU Bodypack Transmitter

The BT-1KU Bodypack Transmitter features the following controls:

• 37. INPUT JACK: 3.5mm locking mini jack for connecting audio input cords (lapel mic, Headmic™, or instrument).
• 38. POWER OFF/MUTE/ON SWITCH: Slides to turn ON/OFF or set to MUTE (audio muted) ?.
• 39. ANTENNA: Permanently attached antenna.
• 40. LCD DISPLAY: Shows Group, Channel, Audio Input Level, and Battery status.
• 41. UP/DOWN BUTTONS: Change Group/Channel or Volume Level, or light up the display ⬆️/⬇️.
• 42. SET BUTTON: Scrolls through the LCD menu and sets functions.
• 43. IR RECEPTOR SENSOR: Infrared LED sensor for IR frequency download from the receiver.
• 44. RF POWER HI/LOW SWITCH: Selects High or Low output power.
• 45. BATTERY COMPARTMENT: Holds two AA batteries.
• 46. LATCHING BATTERY COMPARTMENT DOOR: Secures the battery compartment.
• 47. TWO AA ALKALINE BATTERIES: Power source.
• 48. BELT CLIP: Removable clip for attaching to clothing.

System Operation - 4W-1KU Receiver

Buttons Function

Power Button (1): Turns all four receivers ON or OFF simultaneously. A two-second press lights up the LCD displays. Pressing again for two seconds turns them off, displaying "OFF". Settings are stored upon power-off.

Up/Down Buttons (7): Used for single-stepping or continuous adjustment of Volume Level (11), or for changing Group/Channel in Set mode.

Set Button (6): Cycles through LCD menus: MAIN MENU > VOLUME > GROUP > CHANNEL. Pressing Set confirms selections.

AUTO-SCAN / ASC (IR Sync) Button (5)

Long Press (~2 seconds): Initiates AUTO-SCAN to find a clear channel ?. The LCD display shows scanning progress. Once a clear channel is found, it is displayed and stored.

Short Press (~1 second): Transfers selected frequency information from the receiver to the transmitter via IR for synchronization. The IR LED (4) lights up red during transmission. Upon successful transfer, the transmitter's backlight lights up, and it transmits on the synchronized channel. Receiver's Signal Strength and Diversity Indicators will confirm the link.

Note on Multiple Transmitters: To avoid duplicate channel selection, set up the first transmitter, keep it ON and 3 ft away. Then start AUTO-SCAN on the second receiver. Repeat for subsequent receivers.

Selecting Volume Level / Group / Channel

Press the Set Button (6) three times to access Volume Level settings. Use Up/Down buttons (7) to adjust. Press Set again to exit.

To select Group and Channel: Press Set to enter Group setup mode (Group icon flashes). Use Up/Down buttons to select Group. Press Set again to enter Channel setup mode (Channel icon flashes). Use Up/Down buttons to select Channel. Press Set again to enter Volume Level setup, or press Set twice to skip and return to the main menu.

Rack-mounting the Receiver

The Nady 4W-1KU QUAD receiver has built-in Rack Ears (13). Use supplied screws to install onto a rack. Ensure adequate airflow and heat dissipation. Do not mount directly above amplifiers or heat sources.

Installing Antennas

Connect the two supplied Antennas (21) to the RF Connectors (14/19) on the back of the receiver. Antennas should be positioned at 45° from the receiver and 90° from each other for optimal diversity reception. Maintain line-of-sight between antennas and transmitter.

Optional Antenna Extension Cables (13a) can be used to route antennas to the front of the rack.

Powering the Receivers

Connect the provided AC/DC Power Supply (20) to the DC Input Jack (18) and then to an AC outlet. The unit can also be powered by any 16-18VDC source with minimum 800-1000mA capacity.

Press the Power Button (1) for two seconds to turn the receivers ON. LCD Displays will light up. Diversity A/B (2) and AF Peak LED (3) will be off until a transmitter is active.

To turn off, press the Power Button (1) for two seconds. The LCD will display "OFF", and the backlight will turn off.

Connect audio outputs: Use the Unbalanced Audio Out (17) for adjustable LINE level SUM output, or the Balanced Mic Outs (15) for fixed MIC level per receiver. Connect to mixing boards, amplifiers, or effects.

Note: Ensure amplifier/mixing board volume is at minimum before connecting to avoid damage.

The system is now operational. Proceed with transmitter setup.

Note: Only one transmitter can be used with one receiver. However, this four-receiver unit allows four transmitters on separate frequencies to be used simultaneously, one with each receiver.

Adjusting the Squelch

The Mute Control (16) on each receiver adjusts the squelch level. Adjust clockwise (CW) for minimum RF squelch (maximum range) until the RF Level Meter (12) and Diversity A/B Indicator (2) remain on during normal transmitter use. In high RF environments, CCW adjustment (less mute sensitivity) may be needed. Be cautious not to adjust too high CCW, as this can reduce operating range. A range walk test is recommended for proper adjustment. A counterclockwise setting provides a quieter mute function.

Audio Level and Peak LED Indicator

The AF Peak LED (3) on each receiver indicates audio input levels. A flickering green LED is normal. A continuously lit green LED may indicate overload; reduce audio input level to the transmitter to prevent distortion.

Connecting the Audio Outputs

The 4W-1KU QUAD receiver offers one Unbalanced Audio Out (17) (adjustable LINE level SUM output) and four Balanced Mic Outs (15) (fixed MIC level per receiver).

Unbalanced Output: Connect a 1/4" mono audio cable to the Unbalanced Audio Out (17) and then to your mixing board or amplifier. For instrument use, connect directly to an instrument amp or preamp. The SUM output is useful for switching between transmitters during performance.

Balanced Output: Connect an audio cable with an XLR connector to each receiver's Balanced Mic Out (15) and then to your mixing board or amplifier inputs.

Note: Always set amplifier or mixing board volume to minimum before connecting to prevent potential sound system damage.

The system is now operational. Proceed with transmitter setup.

Note: Only one transmitter can be used with one receiver. However, this four-receiver unit allows four transmitters on separate frequencies to be used simultaneously, one with each receiver.

HT-1KU Handheld Microphone Transmitter

Buttons Function

RF Power Level Switch (27): Selects High (H) or Low (L) power transmission.

Set Button (26): Cycles through LCD menus: MAIN MENU > VOLUME > GROUP > CHANNEL.

Up/Down Buttons (25): Change Group/Channel or Input Audio Level (VOL) in Set mode, or light up the display ⬆️/⬇️.

Manual Programming: Press Set to confirm selections. Functions flash for five seconds before returning to the main menu.

Setting up the Transmitter

The HT-1KU requires two AA batteries. Unscrew the Battery Compartment Cover (22) counterclockwise, slide down, and insert batteries according to polarity. Screw the cover back on securely. Fresh alkaline batteries provide 8-10 hours of operation; replace after 6-8 hours or when the Battery Meter (33) flashes "BATT".

Powering the Transmitter On/Off

Slide the Power On/Off Switch (28) to "ON". The LCD backlight lights up. The unit is on. Backlight turns off after ten seconds, but Group (30), Channel (31), Input Volume Level (32), and Battery Meter (33) remain visible.

To turn off, slide the switch to "OFF". The LCD displays "OFF" and turns off.

The transmitter stores last settings upon power-off.

Factory default Volume setting is -10dB, optimal for most applications.

Programming the HT-1KU to the Selected Channel

IR Sync Programming: Hold the transmitter's IR Receptor Sensor (34) about 6-12 inches from the receiver's IR LED Window (4). Press the receiver's ASC IR Sync Button (5). The receiver's IR LED (4) lights red for three seconds during data transfer. Upon successful transfer, the transmitter backlight lights up, and it transmits on the synchronized channel. Receiver's Signal Strength and Diversity Indicators confirm the link.

Note: IR sync works best in low light. If transfer fails, repeat in a darker location or shield from ambient light.

Manual Programming (GRP/CH and Volume): Press Set Button (26) and Up/Down Buttons (25) to select Group, then Channel, then Volume Level (0dB to -30dB). Press Set to confirm each step or twice to exit.

The transmitter should have the same Group/Channel as the receiver. Default factory settings are Group 00 (Tx 1), 03 (Tx 2), 06 (Tx 3), 09 (Tx 4), and Channel 00 for all.

After programming, secure the battery cover. The HT-1KU is ready for use.

Note: If using multiple transmitters, set up the first one, keep it ON and 3 ft away from receivers. Then AUTO-SCAN the second receiver to avoid duplicate channels.

Operating the HT-1KU Handheld Transmitter

The RF Power Level Switch (27) can be set to "H" for increased range or "L" for reduced range, which conserves battery life and optimizes channel usage. Perform a range walk test to determine the best setting.

Slide the On/Off switch to "ON". The receiver's RF Signal Meter (12) and Diversity A or B Indicator (2) should be on, indicating a received signal. Adjust receiver volume as per "Connecting the Audio Outputs".

Note: Avoid acoustic feedback by careful selection of PA volume, transmitter location, and speaker placement.

BT-1KU Bodypack Transmitter (LT, LT/HM or GT)

Buttons Function

RF Power Level Switch (44): Selects High (H) or Low (L) power transmission.

Set Button (42): Cycles through LCD menus: MAIN MENU > VOLUME > GROUP > CHANNEL.

Up/Down Buttons (41): Change Group/Channel or Input Audio Level (VOL) in Set mode, or light up the display ⬆️/⬇️.

Manual Programming: Press Set to confirm selections. Functions flash for five seconds before returning to the main menu.

Setting up the Transmitter

The BT-1KU requires two AA batteries. Lift the Battery Compartment Door (46), insert batteries according to polarity, and close the door securely. Fresh alkaline batteries provide 8-10 hours of operation; replace after 6-8 hours or when the Battery Meter "BATT" Icon (33) flashes.

Connecting Input Audio Source

Use the Audio Input Jack (37), a 3.5mm locking mini jack, to connect audio input cords for lapel mics (LT), Headmics™ (LT/HM), or instruments (GT). Align the connector slot and turn the ring to lock.

Powering the Transmitter On/Off

Slide the Power Off/Mute/On Switch (38) to "MUTE" (middle position) to turn the unit ON with audio muted. The LCD backlight lights up. Backlight turns off after ten seconds, but Group (30), Channel (31), Input Volume Level (32), and Battery Meter (33) remain visible.

To turn off, slide the switch to "MUTE" then "OFF". The LCD displays "OFF" and turns off.

The transmitter stores last settings upon power-off.

Factory default Volume setting is 0dB, optimal for most applications.

Programming the BT-1KU to the Selected Channel

IR Sync Programming: Hold the transmitter's IR Receptor Sensor (43) about 6"-12" from the receiver's IR LED Window (4). Press the receiver's ASC IR Sync Button (5). The receiver's IR LED lights red for three seconds during data transfer. Upon successful transfer, the transmitter backlight lights up, and it transmits on the synchronized channel. Receiver's Signal Strength and Diversity Indicators confirm the link.

Note: IR sync works best in low light. If transfer fails, repeat in a darker location or shield from ambient light.

Manual Programming (GRP/CH and Volume): Press Set Button (42) and Up/Down Buttons (41) to select Group, then Channel, then Volume Level (0dB to -30dB). Press Set to confirm each step or twice to exit.

The transmitter should have the same Group/Channel as the receiver. Default factory settings are Group 00 (Tx 1), 03 (Tx 2), 06 (Tx 3), 09 (Tx 4), and Channel 00 for all.

Specifications

This section would typically detail technical specifications like frequency response, dynamic range, distortion, power requirements, dimensions, weight, etc. As this information is not fully available from the provided OCR text snippets, I will omit a detailed section here, but the core product type and features are covered.

Cautions and Troubleshooting

This section would typically cover common issues and precautions. Based on the provided text, general notes on avoiding feedback, ensuring proper connections, and battery replacement are mentioned.

Miscellaneous Tips

This section would typically offer advice for optimal use.

Frequency

The system operates on UHF frequencies, with 1000 user-selectable channels within specific bands (U.S. Band 3: 520.000-544.975MHz, International Band 2: 795.000-819.975MHz). Channels are organized into 10 groups (00-09) and 100 channels per group (00-99).

Accessories

Optional accessories like antenna extension cables are mentioned.

Service Information

Details regarding service and support would be found here.

Warranty

Information regarding the product warranty would be provided.