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RECHARGING THE RECEIVER’S BATTERY
• Press the lock of the Power Cord Compartment Cover (11) to open, remove the power cord and
insert its plug into an AC outlet. Do not press the Power Switch (1)
NOTE: To avoid long term damage to the battery, please charge the battery to full whenever the
voltage is low or at least once every 3 months when not in use. It takes about 6-7 hours to charge a
depleted battery. The internal charger charges quickly at first and then automatically adjusts to
smaller currents as the battery become fully charged. This prevents damage to the battery if left on
charging for too long.
SPECIFICATIONS
WA-1620U RECEIVER/AMPLIFIER
POWER ............................................................Internal rechargeable battery (12V 1.9AH)
Internal AC power: 110V~220V, 50HZ~60HZ
FREQUENCY CHANNEL ..................................................................................32 channel
FREQUENCY RANGE ........................................................................UHF 745-754.3MHz
RECEPTION MODE ............................................................................PLL Digitally Locked
OUTPUT POWER ..............................................................................................20W (max)
FREQUENCY RESPONSE ..................................................................40Hz-16KHz ± 2dB
SENSITIVITY ............................................................................................................10dBu
DIMENSIONS ..............................................8.1” x 3.5” x 9.5” (205mm x 90mm x 240mm)
WEIGHT..................................................................................6.2 lbs (2.8 Kg), with battery
WH-16U/WL-16U TRANSMITTERS
POWER ..............................Alkaline or rechargeable NiCad or NiMH battery “AA” battery
WH-16U Handheld: 1.2V-1.5VDC (one AA battery)
WL-16U Bodypack: 1.2V-1.5VDC x2 (two AA batteries)
BATTERY LIFE..............................WH-16U Handheld: 15 hrs; WL-16U Bodypack: 30 hrs
TRANSMITTED OUTPUT POWER ..........................................................................10dBm
SPURIOUS EMISSIONS ..........................................................................................>50dB
DIMENSIONS ..............................................WH-16U Handheld TX: 1” x 5” (26 x 128mm)
WL-16U Bodypack TX: 2.6” x 3.6” x 1” 66mm x 23mm x 91mm
WEIGHT ....................................................................WH-16U Handheld TX: 1.0 oz. (50g)
..........................................................WL-16U Bodypack TX: 2.5 oz.(70g), without battery
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FEATURES
Congratulations and thanks for your purchase of the Nady WA-1620U 20W wireless portable PA.
This unit incorporates the latest in UHF PLL wireless technology to provide years of high
performance, and offers the following additional advanced features:
• Operates on 32 switchable channels within select 9.3Mhz wide bands in the UHF (745-754.3Mhz)
range for maximum freedom from potential interference and optimum choice of clear channels.
• Phase locked loop PLL circuitry for easy, precise channel selection and top performance
• Auto-Search™ feature for easiest automatic clear channel selection and setup in any location
• Full LCD display shows channel selected, RF signal strength, audio level and battery status, as
well as useful icons for easy channel selection
• State-of-art infrared transfer of channel-selected data between the receiver and transmitters
automatically locks in transmitters to proper channel
• ToneSquelch™ eliminates interference from other RF sources
• Compact, aesthetic receiver with hidden internal antenna can be shoulder hung, hand held or
placed on a desk
• Receiver’s large capacity built-in battery offers maintenance-free operation in all types of
applications and is easily charged from external AC through its internal AC adapter supply
• Convenient auxiliary audio input and output for maximum versatility for many applications,
including use simultaneously with the built-in wireless mic and external source wired mic or
Walkman or CD players. Can be hooked up to more powerful external audio amps for
applications requiring more audio levels than produced by the built-in 20W audio amp.
• Transmitters operate with alkaline or rechargeable NiCad or NiMH batteries. Handheld
microphone uses a single AA and the bodypack uses two AA’s.
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CONTENTS
FEATURES ......................................................................................................................................2
CONTROLS FOR THE WA-1620U RECEIVER/AMPLIFIER ..........................................................3
OPERATING THE WA-1620U RECEIVER/AMPLIFIER..................................................................4
CONTROLS FOR THE WL-16U BODYPACK TRANSMITTER ......................................................5
OPERATING THE WL-16U BODYPACK TRANSMITTER ..............................................................5
CONTROLS FOR THE WH-16U HANDHELD MICROPHONE ......................................................6
OPERATING THE WH-16U HANDHELD MICROPHONE ..............................................................6
RECHARGING THE RECEIVER’S BATTERY ................................................................................7
SPECIFICATIONS............................................................................................................................7