Uživatelská příručka k bezdrátovému ručnímu mikrofonnímu systému Nady DKW DUO HT B/D VHF.

1. Úvod

This manual provides instructions for the Nady DKW DUO HT B/D VHF Dual Wireless Handheld Microphone System. This system offers the advantages of wireless operation for various speaking and performance applications. Please read this manual thoroughly before operating the system to ensure proper setup and optimal performance.

2. Obsah balení

Ověřte, zda jsou v balení přítomny všechny položky:

• DKW-DUO Receiver Unit
• HT-DUO Handheld Microphones (2 units)
• AC Power Adapter (for receiver)
• 1/4" to 1/4" Audio Cable
• Uživatelská příručka (tento dokument)

Image 1: Nady DKW DUO HT B/D VHF Dual Wireless Handheld Microphone System showing the receiver and two handheld microphones.

3. Pokyny k nastavení

3.1 Receiver Placement and Connection

1. Umístění přijímače: Place the DKW-DUO receiver in a location where there is a clear line of sight to the area where the microphones will be used. Avoid placing it near large metal objects, concrete walls, or other obstructions that can interfere with the wireless signal. Extend the receiver antennas as high as possible for optimal reception.
   

   Image 2: Front panel of the Nady DKW-DUO receiver, showing volume controls and power switch.

2. Připojte napájení: Connect the supplied AC power adapter to the 9V DC input jack on the rear of the receiver. Plug the adapter into a standard AC power outlet.
   

   Image 3: Rear panel of the Nady DKW-DUO receiver, highlighting the 9V DC input and 1/4" MIX OUTPUT jack.
3. Připojte zvukový výstup: Connect one end of the supplied 1/4" audio cable to the MIX OUTPUT jack on the rear of the receiver. Connect the other end to an available 1/4" input on your mixer, PA system, or ampživější.

3.2 Nastavení mikrofonu

1. Nainstalujte baterie: Unscrew the bottom part of each handheld microphone to reveal the battery compartment. Insert a fresh 9V alkaline battery, observing the correct polarity (+/-). Securely reattach the bottom part.
   

   Image 4: Nady HT-DUO handheld microphone with the battery compartment open, showing where to insert the 9V battery.

2. Zapínací mikrofony: Locate the OFF/ON switch on each microphone. Slide the switch to the "ON" position. The LED indicator on the microphone will flash once to confirm it is powered on. A steady LED indicates a low battery.
   

   Image 5: Close-up of a Nady HT-DUO handheld microphone, showing the power switch and grille.

4. Návod k obsluze

1. Zapnutí přijímače: Flip the power switch on the front panel of the DKW-DUO receiver to the "ON" position. The "POWER" LED will illuminate.
2. Ověření signálu: With the microphones powered on, the "RX" (Receive) LED for each channel (CH A and CH B) on the receiver's front panel should illuminate, indicating a successful wireless connection.
3. Upravit hlasitost: Use the individual "VOL" (Volume) control knobs for CH 1 and CH 2 on the receiver's front panel to adjust the output level of each microphone. Start with the volume low and gradually increase it to a comfortable listening level on your connected audio system.
4. Tipy pro použití:
   • Maintain a clear line of sight between the microphones and the receiver antennas.
   • Avoid holding the microphone by the antenna or covering the grille, as this can affect performance.
   • For best sound quality, speak or sing directly into the top of the microphone grille.

5. Důležité úvahy

• Přímá viditelnost: Ensure a clear, unobstructed line of sight between the receiver antennas and the microphone transmitters. Metal objects, concrete walls, and other physical barriers can significantly reduce the operating range and signal quality.
• Umístění antény: Extend the receiver antennas fully and position them as high as possible to maximize reception range and stability.
• Kvalita baterie: Always use fresh, high-quality alkaline 9V batteries in the microphones. Weak or worn-out batteries are a common cause of poor range, distortion, and interference. Battery life is approximately 15 hours with fresh alkaline batteries.
• Frekvenční rušení: This system operates in the VHF frequency range (170-216MHz). Check that the operating frequencies do not coincide with local TV channels or other external sources like FM radio transmitters or cable TV systems to avoid interference.

6. Údržba

• Čištění: Use a soft, dry cloth to clean the exterior of the receiver and microphones. Do not use liquid cleaners or solvents.
• Výměna baterie: Replace microphone batteries promptly when the LED indicator shows a steady light, or if performance degrades. Remove batteries if the microphones will not be used for an extended period to prevent leakage.
• Skladování: Systém skladujte na chladném a suchém místě mimo dosah přímého slunečního záření a extrémních teplot.

7. Řešení problémů

8. Specifikace

Celkový systém

• Frekvenční odezva: 80Hz-14kHz (±3dB)
• Dynamický rozsah: 95 dB
• Celkové harmonické zkreslení: <0.7 %
• Frekvenční rozsah RF nosiče: 170–216 MHz (VHF)
• Stabilita frekvence: ±0.005%, crystal controlled
• Modulace: FM (F3E), ±15kHz max.
• Provozní rozsah: 150 ft. typical, up to 300+ ft. line-of-sight

Transmitter (Handheld Microphone)

• Zvukový vstup: Nady DM-20D unidirectional dynamic cartridge
• Ovládání: vypínač OFF/ON
• LED indikátor: "ON" (single flash), Low Battery Alert (steady)
• RF výstup: 50 mW
• Harmonic & Spurious Emissions: >-40 dB
• Baterie: 9V alkalické
• Životnost baterie: Až 15 hodin
• Hmotnost: 5.4 ounces (per microphone)

Přijímač

• Ovládání: Power ON/OFF, CH 1 Volume, CH 2 Volume
• Konektory: 1/4" unbalanced audio out jack, 2.1 mm barrel-type DC input jack
• LED indikátory: Power ON, Transmitter RF (CH A & CH B)
• Požadavky na napájení: 9V @ 120mA, nominal, AC/DC adapter supplied
• Antén: Dual 15" (38 cm), collapsible
• Rozměry: 7 x 4.5 x 13.5 inches (Product Dimensions, likely for receiver)

9. Záruka a podpora

For warranty information or technical support, please refer to the official Nady website or contact Nady customer service directly. Contact details are typically provided with the product packaging or on the manufacturer's webmísto.

Note: This product is from a small business brand.