S Y S T E M F E A T U R E S 
401 Receiver
•Four independent VHF receivers in one convenient, rugged,
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•Front panel Power ON/OFF switch, plus Power ON, TX ON and
•Rear panel individual 1/4” AF Out phone jacks, volume and RF mute controls for each of the
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•High performance – unmatched transparent audio with 120 dB dynamic range and up to 250+ feet optimum
WHT-15 Handheld Microphone Transmitter
•Features the Nady DM
•OFF/STANDBY/ON switch allows convenient audio muting with the transmitter “ON”
•Low battery LED indicator flashes once for unit “ON”; lights steady for low battery alert
•Rubber,
WGT-15 & WLT-15 Bodypack Transmitters
•Choice of instrument
•OFF/STANDBY/ON switch allows convenient audio muting with the transmitter “ON”
•Low battery LED indicator flashes once for unit “ON”; lights steady for low battery alert
•Locking 3.5mm
•Easily accessible input level adjust control for optimum sound
LINK 2™ Plug-In Transmitter
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•Rugged construction and positive locking connector for reliable performance
•Selectable phantom power and LO/HI audio input level
•Optional leatherette pouch with clip available for use as bodypack
O P E R A T I O N
401 Receiver
1. Rackmounting the Receiver
The 401 receiver is supplied with RACK EARS (1) which can be attached with the screws provided on the front of the side panels to enable rackmounting.
(Note: Do not mount the receiver in a rack directly above an amplifier or other source of high heat – this could degrade the performance of the 401. Always ensure adequate airflow and heat dissipation in any rack configuration.)
2. Powering the Receiver
Plug the 12V AC/DC ADAPTER (2) provided into the DC INPUT JACK (3) on the back of the receiver. Then plug the power supply into an AC outlet.
(Note: Any 12V DC source with 400mA capability can also be used.)
Turn VOLUME CONTROL (11) for all four channels counterclockwise to mimimum locat- ed on the back of the receiver. Once the receiver is connected to a power source, press the POWER SWITCH (4) to ON position. The TX LED INDICATOR (5) on the front panel of the receiver will not light up until one or more of the four channels is receiving a signal from your system’s transmitter.
3. Antennas
The ANTENNAS (6) assembly consists of two antennas. Connect antennas into the ANTEN- NA JACKS (7) on the back of the receiver. Extend the antennas fully to obtain maximum range. Position ANTENNAS (6) at 45 degrees from the horizontal; 90 degrees from each other. For maximum range, it is always best to maintain a line of sight (no obstructions) between the receiver antennas and the transmitter whenever possible.
4. Mute (Squelch) Adjustment
In normal operation, the MUTE CONTROL (8) should be set fully counterclockwise to the factory preset minimum RF level of 1µV for maximum sensitivity. Doing so sets each receiver for maximum range. However, in areas of high RF activity, the mute (or squelch, as it is sometimes called) may need to be adjusted to compensate for the adverse conditions in a particular location. If, with the transmitter off, its corresponding LED on the receiver front panel flickers or stays on, the MUTE CONTROL (8) should be turned clockwise until the LED extinguishes. For each of the four channels, when the Mute is properly adjusted, the corresponding LED will light only when the system’s transmitter is turned on. Turning the MUTE CONTROL (8) too far clockwise will result in reduced range, but yield a quieter sig- nal during dropouts or at the end of the operating distance range.
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