Nady UHF-3 operating instructions
UHF-3
Single Channel UHF DigiTRU Diversity
Wireless System
CONTENTS
CONTENTS ...........................................................................................2
INTRODUCTION ....................................................................................2
USING THIS MANUAL............................................................................2
SYSTEM FEATURES ................................................................................3
UHF-3 RECEIVER .................................................................................... 4
UH-3 HANDHELD MICROPHONE TRANSMITTER ...................................... 7
UB-3 BODYPACK MICROPHONE TRANSMITTER ......................................8
SPECIFICATIONS ................................................................................. 11
SYSTEM FEATURES
UHF-3 RECEIVER
• Half-rack receiver design with retractable front panel dual antennas
• Clear channel operation on the wide open, uncluttered UHF band
for interference-free performance in any application or locale
• Nady’s proprietary companding circuitry for an industry best 120dB
Dynamic Range, and the clearest, most natural sound available
• Tone Squelch™ for locking out potential interference
• UHF-3 receiver with DigiTRU Diversity™ for maximum range and
dropout protection, full LED indicators, both 1/4" unbalanced and XLR
balanced outputs, and special circuitry for noiseless transmitter
ON/OFF switching
• Mute (squelch) adjust control
• Externally powered by AC/DC power adapter
• Unique snap-out panel locking tabs for single receiver or dual receiver
(side-by-side) optional rack mounting
SERVICE .................................................................................Back Cover
INTRODUCTION
Thank you for purchasing a Nady UHF-3 Diversity Wireless Microphone System and
congratulations on your choice. The UHF-3 is loaded with top professional operating
features and is the best performance and price value available in UHF diversity
wireless systems.
USING THIS MANUAL
This booklet gives instructions for the operation of the UHF-3 wireless, including
handheld, instrument, lavalier, headmic and plug-in transmitter systems. Please read
the instructions for your system completely before operating unit.
This manual will first list the features of the UHF-3 and then will take you step by step
to show you how to operate your new system. After reading the receiver instructions,
turn to the section of the booklet that covers the type of transmitter used with your new
system. Each section will give you detailed operating instructions. Also included in this
manual are system specifications and servicing information.
UH-3 HANDHELD MIC TRANSMITTER
• Features the Nady DM -10D unidirectional neodymium dynamic cartridge for
optimum true sound, maximum feedback rejection and minimal handling noise
• Audio mute switch allows convenient audio muting with the
transmitter "ON"
• Status LED indicator flashes once for unit "ON"; lights steady for
low battery alert
• Convenient, economical operation with two AA Alkaline or NiMH batteries
UB-3 BODYPACK TRANSMITTERS
• Choice of instrument or headworn/lavalier microphone bodypack transmitter
• Audio mute switch allows convenient audio muting with the
transmitter "ON"
• Bicolor LED status indicator: Unit “ON” (green), Low Battery Alert (orange)
• Locking 3.5mm mini-jack provides secure connection for removable
microphone or instrument cable
• Easily accessible input level adjust control for optimum sound
• Convenient, economical operation with two AAA Alkaline batteries
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3
UHF-3 RECEIVER
1. Rackmounting the Receiver
There are 2 options available for rackmounting the UHF-3 receiver: singly or side-byside with another UHF-3 Series receiver.
a. Single mounting: Remove the receiver SIDE MOUNT CLIP (1) from each side of
the receiver (as shown) and slide in the optional ERM-3 RACK EARS (2).
b. Side-by-side double mounting: After removing the SIDE MOUNT CLIPS (1) from
both UHF-3 receivers, join the two receivers with the EJC-3 JOINING CLIP
(3) and attach the ERM-33 RACK EARS (4) as shown.
the receiver in a rack directly above an amplifier or other source of high heat –
this could degrade the performance of the UHF-3. Always ensure adequate
airflow and heat dissipation in any rack configuration.)
2. Powering the Receiver
Plug the 12V AC/DC ADAPTER (5) provided into the DC INPUT JACK (9) on the back
of the receiver. Then plug the power supply into an AC outlet.
source with 400mA capability can also be used.)
Press the POWER SWITCH (11)
once to turn on the receiver. The POWER ON LED (12) will now light and the receiver
is operational.
3. Antennas
The UHF-3 receiver is supplied with TELESCOPIC ANTENNAS (15). These should be
extended fully to obtain maximum range. Optimal antenna position is 45 degrees
from the receiver (at 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 at all times whenever possible.
4. Mute (Squelch) Adjustment
In normal operation, the SQUELCH CONTROL (6) should be set fully clockwise to the
factory preset RF level (Max. Sens.). However, in areas of high RF activity, the squelch
(or mute, 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, the receiver’s A
and/or B DIVERSITY LED INDICATORS (13) flicker or stay on, the squelch control
should be turned counterclockwise until the A and/or B LEDs extinguish. When the
squelch is properly adjusted, the A and/or B LEDs will only light when the system
transmitter is turned on. Turning the squelch control too far counterclockwise will
reduce the range, but yield a quieter squelch (mute) function. During operation,
especially at ranges greater than 75 feet, one or the other of the A or B LEDs may
extinguish briefly. This is normal–the unit’s DigiTRU Diversity™ reception ensures that
the received audio will not be interrupted. When both LEDs extinguish, the transmitter
is out of range for that given location, and the user should move closer to the receiver
to re-establish the radio link.
(Note: Do not mount
(Note: Any 12V DC
5. Connecting the Audio Output
The UHF-3 receiver provides both a fixed mic level BALANCED MIC AUDIO OUTPUT
XLR (7) and an adjustable line level AUX AUDIO OUTPUT 1/4" jack (10).
(Note: As when making any connection, make sure the amplifier or mixing board
volume is at the minimum level before plugging in the receiver to avoid possible
sound system damage.)
Microphone Connection
(using the UB-3 transmitter with either a headworn or lavalier microphone or the
UH-3 handheld microphone transmitter) For microphone use, either the BALANCED
MIC AUDIO OUTPUT XLR (7) or the 1/4" line level AUX AUDIO OUTPUT (10) can be
used. The XLR output is set at a non-adjustable microphone level, similar to hardwired
mic levels. Plug an XLR connector into the XLR output socket on the rear of the unit
and plug the other end into your amplifier or mixing board. Make sure the phantom
power on your mixing board is turned off and the volume is turned down when
making connections. For your convenience, the XLR output level is preset at the
factory and is not adjustable with the receiver volume control.
To use the 1/4" AUX AUDIO OUTPUT socket, follow the instructions for the Instrument
Connection (above), except start the receiver volume at 1/2 MAX and adjust until the
volume level is optimal. If the volume control is set too high, you may overload your
mixer or amp.
The UHF-3 receiver is equipped with a 5 segment LED AF LEVEL DISPLAY (14).
Occasional flickering of the top AF Peak LED indicator on loud inputs to the
transmitter is normal. If this LED lights continuously, decrease the volume to the
transmitter or overload distortion may result.
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