Nady Systems Stereo Amplifier UHF 16 User Manual

       
           
              
                
                  
                    
UHF-16  
UHF Wireless Microphone  
and Instrument System  
16 Channel PLL Frequency Synthesized  
 
O W N E R ’ S M A N U A L  
TABLE OF CONTENTS  
CHANNEL DISPLAY AND UP/DOWN  
BUTTONS OPERATION  
INTRODUCTION  
Using this Manual ................................................ 4  
1. UHF-16 Receiver ........................................... 15  
a. Changing the Channel Assignment ........... 15  
b. Selecting Tone Squelch™ Mode ............... 15  
c. Selecting Keyboard Lock ........................... 15  
d. Battery Status Icon Operation ................... 15  
2. UH-16 and UB-16 Transmitters ...................... 15  
a. Changing the Channel Assignment ........... 15  
b. Selecting Tone Squelch™ Mode/  
SYSTEM FEATURES  
UHF 16 Receiver ................................................. 5  
UB-16 and UH-16 Transmitters............................ 5  
OPERATING INSTRUCTIONS  
UHF 16 Receiver  
1. Mounting the Receiver ..................................... 6  
a. Table mounting ............................................ 6  
b. Rack Mounting a Single Receiver ............... 6  
c. Rack Mounting 2 Receivers Side by Side.... 6  
2. Installing Antennas ........................................... 7  
3. Powering the Receiver ..................................... 7  
4. Choosing an Operating Frequency .................. 8  
5. Mute Adjustment .............................................. 8  
6. Diversity Operation .......................................... 8  
7. Connecting Audio Output ................................. 8  
a. Instrument Connection ................................ 9  
b. Microphone Connection............................... 9  
8. Locking the Keyboard ...................................... 9  
9. Simultaneous Multi-Channel Operation ........... 9  
Activity Indicator......................................... 15  
c. Selecting Keyboard Lock ........................... 15  
FREQUENCY GUIDE ......................... 16  
SPECIFICATIONS  
UHF 16 System.................................................. 17  
UHF-16 Receiver ............................................... 17  
UB-16 & UH-16 Transmitters ............................. 17  
SERVICE FOR YOUR NADY WIRELESS  
SYSTEM  
U.S. .................................................................... 18  
International ....................................................... 18  
UH-16 Handheld Microphone Transmitter  
1. Powering the Transmitter ............................... 10  
2. Selecting the Operating Frequency ............... 10  
3. Selecting the Tone Squelch™ Mode/  
Activity Indicator ............................................. 10  
4. Locking the Keyboard .................................... 10  
5. Microphone Operation ................................... 11  
UB-16 Bodypack Transmitter  
1. Powering the Transmitter ............................... 12  
2. Selecting Input for Operation ......................... 12  
3. Connecting the Audio Source ........................ 12  
4. Turning on the Transmitter ............................. 12  
5. Selecting the Operating Frequency ............... 13  
6. Selecting the Tone Squelch™ Mode/  
Activity Indicator ............................................. 13  
7. Locking the Keyboard .................................... 13  
8. Microphone and Instrument Operation .......... 13  
a. Instrument Use .......................................... 13  
b. Microphone Use ........................................ 14  
9. Cautions ......................................................... 14  
a. Feedback ................................................... 14  
b. Microphone Damage ................................. 14  
c. No Audio .................................................... 14  
3
 
INTRODUCTION  
Thank you for choosing the Nady UHF-16 wireless system, and congratulations on your choice. The Nady  
UHF-16 system is by far the best performance and price value available in professional UHF wireless.  
Offering clear channel operation on the wide open, uncluttered UHF band for interference-free  
performance in any application or locale, the UHF-16 delivers 16 user switchable, frequency synthesized  
channels in pre-programmed groups in the 726 - 865 MHz range.  
The UHF-16 systems feature Nady’s proprietary companding and low noise circuitry for an industry best  
120 dB Dynamic Range, and the clearest, most natural sound available in wireless today.  
Using this Manual  
This booklet gives instructions for the operation of the UHF-16 system, including the UB-16 Bodypack  
Transmitter, and the UH-16 Handheld Microphone Transmitter. Please read this instruction booklet  
completely before operating your system, and refer to the Nady UHF-16 Frequency Guide for the  
frequency band(s) and channels utilized by your system.  
This manual will first explain the features of the UHF-16 and will then take you step by step in instructing  
you how to operate your new system. Each section will give you detailed information. Also included in this  
manual is a frequency selection chart, complete system specifications, and servicing information.  
4
 
SYSTEM FEATURES  
UHF-16 Receiver  
• State-of-the-art PLL synthesized 16 channel selection, user switchable  
• Unsurpassed UHF performance with 120 dB dynamic range and operation up to 500 feet line-of-sight  
• Rugged half-rack UHF-16 receiver with dual removable antennas (for convenient optional remote  
placement), 16 user switchable UHF frequencies and DigiTRU Diversity™ proprietary digital processing  
circuitry for eliminating dropouts and maximizing range  
• Sophisticated IF filtering for multiple UHF-16 system operation in the same location simultaneously  
• User-selectable Tone Squelch™ for protection from RF interference  
• Front panel back-lit LCD display indicates the channel/frequency selected, received RF and AF levels,  
A/B diversity status, and transmitter low-battery alert  
• Convenient UP/DOWN buttons for easy channel selection  
• Front panel ON/OFF button (with Power On LED indicator), Squelch (mute) adjust and Volume control for  
ease of operation  
• Back panel balanced XLR fixed mic level and adjustable unbalanced 1/4" jack audio outputs, and BNC  
jacks for dual antennas  
• Externally powered with 12 VDC (500 mA) AC adapter  
• Optional rack kits enable single or side-by-side rack mounting.  
UB-16 and UH-16 Transmitters  
Choice of transmitters: UH-16 handheld or UB-16 bodypack, both 16-channel selectable  
• UH-16 and UB-16 both operate on 2 AA batteries for the longest reliable and economical battery life.  
• UH-16 handheld is a sleek, durable unit with internal antenna (with no archaic, unattractive antenna  
protrusion) and the superior Nady DM-10D neodymium dynamic cartridge for clear, powerful audio,  
maximum feedback rejection, and minimal handling noise.  
• UB-16 bodypack is a versatile unit with unique 3-way input switch allowing its operation selectively as an  
instrument, lavalier mic or headworn mic transmitter (with convenient DC phantom powering in the mic  
settings for condensers). An input level control allows optimal audio gain adjustment, and a locking 3.5  
mm jack provides secure connection to the instrument cable, lavalier or headworn mic cord.  
• Both the UH-16 and UB-16 transmitters feature OFF/STANDBY/On controls, low battery LED indicators,  
and offer easy channel selection via UP/DOWN buttons and a 2-segment LCD Channel display.  
5
 
OPERATING INSTRUCTIONS  
UHF-16 Receiver  
1. Mounting the Receiver  
a. Table Mounting  
To mount a receiver on a table or other horizontal surface, attach the four supplied rubber feet to the  
bottom corners of the receiver and place the receiver on the mounting surface.  
b. Rack Mounting a Single Receiver  
If you want to rack mount a single receiver in an audio equipment rack, contact the Nady Systems Service  
Department (see SERVICE FOR YOUR NADY  
WIRELESS, page 18) for an optional RMK-16S  
SINGLE RACK MOUNTING KIT (6a) and proceed as  
(6a)  
follows:  
1. Attach the rack ears to the 2 holes on each  
side of the receiver with the supplied screws  
and mount the unit in the 19” audio equipment  
rack.  
2. If you wish to also front mount the antennas, order the additional FMK-16S FRONT MOUNT  
CONVERSION KIT (6b) also from the Nady Service Department when ordering the RMK-16S.  
c. Rack Mounting 2 Receivers Side by Side  
If you want to rack mount 2 receivers side-by-side in an audio equipment rack, contact the Nady Systems  
Service Department (see SERVICE FOR YOUR NADY WIRELESS, page 18) for an optional RMK-16D  
DOUBLE RACK MOUNTING KIT (6c) and proceed as follows:  
1. Remove the covers of both receivers by  
removing the 4 screws on the bottom plate  
as shown.  
2. Join the 2 receivers together with the  
supplied bolts and nuts, while also joining  
the back of the receivers with the supplied  
double side tape as shown  
(6c)  
3. Attach the rack ears to the 2 holes on the  
outer sides of the receivers with the  
supplied screws and mount the units in the  
19” audio equipment rack.  
4. If you wish to also front mount the antennas,  
order the additional FMK-16D FRONT  
MOUNT CONVERSION KIT (6d) from the  
Nady Service Department when ordering  
the RMK-16D. This kit includes a passive antenna splitter/combiner so that the 2 CH A and CH B  
antennas for both side-by-side receivers (4 total) are combined into single CH A and CH B  
antennas on the front panel as shown.  
(6b)  
(6d)  
(6e)  
6
 
OPERATING INSTRUCTIONS  
UHF-16 Receiver  
(5)  
2. Installing Antennas  
Install antennas by connecting the  
two antennas included with your  
system, or optional remote  
antennas, to the two each BNC  
RF TWIST-ON CONNECTORS  
(5) located on the back of your  
UHF-16 receiver. If using either  
single or side-by-side front panel antenna mounting, as described above, attach either the supplied or  
optional remote antennas to the FRONT PANEL BNC CONNECTORS (6e) as shown. For best  
performance, point the antenna tips away from each other at a 90° angle (45° from vertical axis).  
UHF-16 BACK PANEL  
(5)  
(4)  
(3)  
(2)  
(1)  
(7)  
UHF-16 FRONT PANEL  
(8)  
(9) (10)  
(11)  
(12)  
(13)  
3. Powering the Receiver  
Plug the AC/DC ADAPTOR (1) provided in the 12 VDC INPUT JACK (2) on the back of the receiver. Then  
plug the adapter into an AC outlet. (Note: Any center positive 12V DC source with 500 mA capability can  
also be used.)  
Turn the VOLUME CONTROL (7) counterclockwise to minimum and press the POWER SWITCH (8) ON.  
The POWER ON LED (9) will now light, and the receiver is operational.  
The LCD DISPLAY (11) should also be lit. The AUDIO LEVEL (11b) and RF LEVEL (11a) meter icons will  
not display until your transmitter is turned on, your frequency selection common to both the transmitter and  
receiver is made, and the system is operational. The AUDIO LEVEL METER (11b) will display when you  
then speak into the attached microphone or play the connected instrument.  
7
 
OPERATING INSTRUCTIONS  
UHF-16 Receiver  
4. Choosing an Operating Frequency  
Choose an operating frequency by selecting any of the 16 UHF operating frequencies available in the band  
provided, using the UP/DOWN BUTTONS (12). The CHANNEL SELECTED (11d) and OPERATING  
FREQUENCY (11f) icons in the LCD DISPLAY  
(11d)  
(11a)  
(11b)  
(11c)  
(11) indicate the channel and frequency you  
have selected. You must also set your  
transmitter UP/DOWN BUTTONS (20,25) to  
the same channel you choose on the receiver.  
(See UH-16 or UB-16 TRANSMITTER  
OPERATING INSTRUCTIONS, page 10 & 13  
and CHANNEL DISPLAY AND UP/DOWN  
BUTTON OPERATION, page 15). For a listing  
of the frequencies in each of the 3 available  
bands, see page 16.  
(11e)  
(11f)  
5. Mute Adjustment  
The receiver has two audio mute circuits.  
a. The Tone Squelch™ blocks the audio noise when the channel signaling tones are not present. It helps  
avoid interferences from unwanted transmissions. This feature is strongly recommended for situations  
where the transmitter is turned on and off during use. Without Tone Squelch, an unwanted signal may  
enter your inactive receiver when your transmitter is switched off. You then risk a pop or disruptive noise  
coming from your sound system. This type of interference is eliminated by the Tone Squelch. The  
receiver detects a tone signal coming from your transmitter, which opens the squelch, allowing your  
modulated signal to be heard. This feature is selectable and not recommended for applications where the  
transmitter will always be on, or for use with instruments.  
The Tone Squelch™ mode can be configured with the Up/Down buttons. See CHANNEL DISPLAY AND  
UP/DOWN BUTTON OPERATION, page 15.  
(Note: If the receiver is configured for Tone Squelchmute, the transmitter must also be configured to  
send the tones, otherwise the receiver audio will remain muted. The signaling tones are also used to  
display the transmitter battery status. If the Tone Squelchis defeated, this function will not be  
operational.)  
b. The Receive Level Mute blocks audio noise when the received signal level is too low, or interfering  
transmissions are high.  
A MUTE (RF SQUELCH) CONTROL (13) is provided on the front panel. This control should be adjusted  
counterclockwise to the minimum position at which there is no audio output signal from the receiver when  
your transmitter is not in use. This is the most sensitive setting for your receiver and offers the maximum  
operating range. However, in areas of high RF activity, the mute may need to be adjusted. When the  
transmitter is off and the receivers RECEIVED RF LEVEL METER (11a) icon flickers or displays one or  
more segments, and/or white noise (hiss) is heard at the receiver output, the MUTE CONTROL (13) should  
be turned clockwise until the noise is muted (squelched). Turning the MUTE CONTROL too far clockwise  
will reduce operating range but will yield a quieter mute function. Note that the MUTE CONTROL operates  
independent of the RF LEVEL METER so that adjusting the MUTE will not affect any readings at the RF  
LEVEL METER.  
6. Diversity Operation  
During operation only one of the A or B DIVERSITY STATUS ICONS (11e) will be lit, indicating the  
receivers DigiTru Diversitycircuitry is selecting antenna input A or B for the best signal. This is normal  
and ensures that the received audio will not be interrupted. Sometimes, especially at ranges greater than  
75 feet, the squelch circuit will activate in certain locations of the transmitter with respect to the receiver.  
Such areas are called null spotsand indicate that the transmitter is out of range for that given location,  
and the user should move closer to the receiver or to another area to re-establish the radio link.  
8
 
OPERATING INSTRUCTIONS  
UHF-16 Receiver  
7. Connecting Audio Output  
The UHF-16 receiver provides both a fixed mic level BALANCED AUDIO OUTPUT XLR (4) and an  
adjustable 1/4line level LINE OUTPUT JACK (3).  
(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.)  
a. Instrument Connection (using the UB-16 transmitter in the Instrumentsetting)  
Insert an audio cord with a 1/4" mono phone plug in the LINE OUT JACK (3) on the rear panel of the  
receiver. Plug the other end of the cord into an amplifier, effects, or mixing board. Adjust the VOLUME  
CONTROL (7) on the UHF-16 receiver clockwise to about 3/4 full, until the volume level is comfortable for  
your application. This setting is roughly equivalent to a direct instrument cord connection. Turning the  
volume up to MAX will provide 4 dB gain over a cord.  
b. Microphone Connection (using the UH-16 handheld microphone transmitter, or the UB-16 transmitter  
with either a headworn or lavalier microphone). For microphones, use either the BALANCED MIC OUTPUT  
XLR (4) or the 1/4" line level LINE OUT JACK (3).  
Plug an XLR connector into the BALANCED XLR OUTPUT (4) jack on the rear of the unit and plug the  
other end into your amplifier or mixing board. For your convenience, the XLR output level is preset at the  
factory for MIC level and is not adjustable with the receiver VOLUME CONTROL (7).  
(Note: Make sure the volume is turned down when making connections.)  
To use the 1/4" LINE OUT socket, follow the instructions for the Instrument Connection (above), except  
start the receiver VOLUME CONTROL (7) at 1/2 MAX and adjust until the volume level is optimal. If the  
volume is set too high, you may overload your mixer or amp.  
The UHF-16 receiver is equipped with an AF DISPLAY ICON (11a), which displays up to 4 segments,  
depending on the strength of the audio signal from the transmitter. Occasional flickering of the 4th bar  
segment of this display on loud inputs to the transmitter is normal. If this segment displays continuously,  
decrease the volume to the transmitter or overload distortion may result.  
Your UHF-16 receiver is now operational and ready to use. Now that you have completed the above steps,  
proceed to instructions for the Nady UHF-16 transmitter included with your system.  
(Note: Only one transmitter can be used with one UHF-16 receiver. It is not possible to use two transmitters  
on the same frequency and mix the output of these transmitters into one wireless receiver. If you have any  
questions, please contact the Nady Systems Customer Service Department. See SERVICE, page 18.)  
8. Locking the keyboard  
To avoid accidental reconfiguration of the Channel setting or Tone Squelch, the keyboard can be locked  
by holding both the UP and DOWN BUTTONS (12) at the same time for 3 seconds. See the CHANNEL  
DISPLAY AND UP/DOWN BUTTON OPERATION, page 15.  
9. Simultaneous Multi-Channel Operation  
For simultaneous operation of up to 4 5 channels in a given application and in the same band, use the  
procedure outlined above for setting up each channel, ensuring a different frequency for each system.  
Operation of a greater number of channels simultaneously can sometimes be more difficult as the channel  
combinations must be chosen with care to avoid intermodulation interference between the channels, which  
involves more planning than just selecting different frequencies. For additional help and tips to enable more  
complicated multi-channel simultaneous operation, contact the Nady Service Department for more  
information. (see SERVICE FOR YOUR NADY WIRELESS, page 18).  
9
 
OPERATING INSTRUCTIONS  
UH-16 Handheld Microphone Transmitter  
1. Powering the Transmitter  
Slide open the BATTERY COMPARTMENT COVER (14) and remove, exposing the BATTERY  
COMPARTMENT (15). Insert 2 fresh AA ALKALINE BATTERIES (16), observing the correct polarity as  
marked, and slide the COVER back, closing the BATTERY COMPARTMENT.  
Two fresh alkaline AA Batteries  
can last up to 12 hours in use, but  
in order to ensure optimum  
(16)  
performance, it is recommended  
that you replace the batteries after  
every 8-10 hours of use.  
(15)  
All controls are at the base of the  
microphone. Turn on the UH-16 by  
sliding the OFF/STANDBY/ON  
SWITCH (17) to the STANDBY  
position (transmitter on, audio  
muted) or the ON position  
(14)  
(transmitter and audio both on).  
The BATTERY INDICATOR LED  
(18) will give a single quick flash, indicating usable battery strength. In the case of dead or low batteries,  
the LED will either not go on at all, or will stay on continuously, indicating that the batteries should be  
replaced with fresh ones. If the Tone Squelchis activated on both transmitter and receiver, the LOW TX  
BATTERY ICON (11c) on the receivers LCD DISPLAY (11) will switch from the battery OK to the LOW  
battery mode. See CHANNEL DISPLAY AND UP/DOWN BUTTON OPERATION, page 15 and UHF-16  
OPERATING INSTRUCTIONS, page 8. The channel  
number on the CHANNEL LED DISPLAY (19) will  
(19)  
extinguish in 10 seconds. The activity indicator  
(18)  
’’ or “  
’’ LED will remain on in the DISPLAY. See  
CHANNEL DISPLAY AND UP/DOWN BUTTON  
OPERATION, page 15.  
2. Selecting the Operating Frequency  
In order for the system to operate properly, the same  
channel (frequency of operation) must be selected for the  
UH-16 transmitter as was chosen for the UHF-16 receiver.  
Press either the UP or DOWN CHANNEL SELECT  
BUTTON (20) until the channel number indicated on the  
2-segment CHANNEL LED DISPLAY (19) matches that of  
the UHF-16 receiver.  
(20)  
(20)  
(17)  
3. Selecting the Tone Squelch™ Mode/Activity Indicator  
Hold both the UP and DOWN BUTTONS (20) at the same time for 1 second. The Tone Squelchwill cycle  
from On to Off. See the CHANNEL DISPLAY AND UP/DOWN BUTTON OPERATION, page 15.  
(Note: If the receiver is configured for Tone Squelchmute, the transmitter must also be configured to  
send the tones, otherwise the receiver audio will remain muted. The signaling tones are also used to  
indicate the transmitter battery status on the receiver BATTERY ICON (11c) display. If Tone Squelchis  
defeated, this function will not be operational.)  
10  
 
OPERATING INSTRUCTIONS  
UH-16 Handheld Microphone Transmitter  
4. Locking the Keyboard  
To avoid accidental reconfiguration of the Channel setting or Tone Squelch, the keyboard can be locked  
by holding both the UP and DOWN BUTTONS (20) at the same time for 3 seconds. See the CHANNEL  
DISPLAY AND UP/DOWN BUTTON OPERATION, page 15.  
5. Microphone Operation  
The microphone is now ready to use. The RECEIVED RF LEVEL (11a) icon and either the A or B  
DIVERSITY STATUS ICONS (11e) on the UHF-16 receiver should now be lit, indicating a received signal  
from the transmitter. The receiver TX LED INDICATOR (10) should be on. When ready to speak, slide the  
OFF/STANDBY/ON SWITCH (17) to the ON position. Adjust the volume of the receiver as per the Audio  
Output Microphone Connection section of the above UHF-16 receiver instructions.  
(Note: Observe care in selecting P.A. volume, transmitter location and speaker placement so that acoustic  
feedback, howling or screeching, will be avoided.)  
The UHF-16 receiver is equipped with an AF DISPLAY (11a) icon, which displays up to 4 segments,  
depending on the strength of the audio signal from the transmitter. Occasional flickering of the 4th bar  
segment of this display on loud inputs to the transmitter is normal. If this segment displays continuously,  
and/or distortion is heard, decrease the volume to the transmitter. Due to the wide available dynamic range,  
generally no adjustment will ever be needed for the transmitter input gain. There is a control under the mic  
ball assembly available for rare cases where its desirable to make an input gain adjustment. For  
instructions on how to access this internal control, please contact the Nady Systems Customer Service  
Department. See SERVICE, page 18.  
(Note: The microphone element can easily be destroyed by the buildup of salts and minerals from  
perspiration and saliva. It is good practice to put a windscreen on the mic element at all times to protect it.)  
11  
 
OPERATING INSTRUCTIONS  
UB-16 Bodypack Transmitter  
1. Powering the Transmitter  
Slide open the BATTERY COMPARTMENT (21) and insert 2 fresh AA ALKALINE BATTERIES (22),  
observing the correct polarity. Two fresh  
alkaline batteries can last up to 12  
hours in use, but in order to ensure  
optimum performance, it is  
(22)  
(21)  
recommended that the battery be  
replaced after 8-10 hours of use.  
2. Selecting Input for  
Operation  
The UB-16 is equipped with an INPUT  
SELECTOR SWITCH (23) in the battery  
compartment for selecting the type of  
audio input you will be supplying to the  
transmitter. Select from the choice of  
three positions: GT (for guitar, bass,  
etc.) / HM (for headworn mic)/ LT (for  
lavalier mic).  
(34)  
(23)  
Inside Battery Compartment  
3. Connecting the Audio Source  
The UB-16 is provided with a 3.5 mm LOCKING  
JACK (27) for connecting the audio input  
selected. Connect either the INSTRUMENT (31)  
cord or the HEADWORN MIC (32) or LAVALIER  
MIC (33) cord as desired, according to the input  
selected.  
(25)  
(24)  
(26)  
To secure the connection, turn the slip ring on  
the plug clockwise to thread it on the jack. To  
unplug, reverse the process. Slip the transmitter  
into a pocket or CLIP (34) it on to your clothes or  
instrument strap (if using the UB-16 as an  
instrument transmitter).  
(30)  
Top View  
(Note: Use only the input audio source as per the  
input selected with the AUDIO INPUT  
SELECTOR SWITCH or the audio will not be  
optimala muddy or distorted sound may result.)  
(29)  
(28)  
(27)  
4. Turning on the Transmitter  
Turn on the UB-16 by sliding the OFF/STANDBY/ON SWITCH (28) to the STANDBY position (transmitter  
on, audio muted) or the ON position (transmitter and audio both on). The BATTERY INDICATOR LED  
(30) will give a single quick flash, indicating usable battery strength. In the case of dead or low batteries,  
the LED either will not go on at all or will stay on continuously, indicating that the batteries should be  
replaced with fresh ones. If the Tone Squelchis activated on both transmitter and receiver, the LOW TX  
BATTERY ICON (11c) on the receivers LCD DISPLAY (11) will switch from the battery OK to the LOW  
battery mode. See CHANNEL DISPLAY AND UP/DOWN BUTTON OPERATION, page 15 and UHF-16  
OPERATING INSTRUCTIONS, page 8.  
Inside the cover, the channel number on the CHANNEL LED DISPLAY (24) will extinguish in 10 seconds.  
The activity indicator “ ’’ or “  
’’ LED will remain on in the DISPLAY. See CHANNEL DISPLAY AND  
UP/DOWN BUTTON OPERATION, page 15.  
12  
 
OPERATING INSTRUCTIONS  
UB-16 Bodypack Transmitter  
5. Selecting the Operating Frequency  
(31)  
In order for the system to operate properly, the same channel  
(frequency of operation) must be selected for the UB-16 transmitter as  
was chosen for the UHF-16 receiver. Press either the UP or DOWN  
CHANNEL SELECT BUTTON (25) until the channel number indicated  
on the 2-segment CHANNEL LED DISPLAY (24) matches that of the  
UHF-16 receiver.  
6. Selecting the Tone Squelch™ Mode/  
Activity Indicator  
(32)  
Hold both the UP and DOWN BUTTONS (25) at the same time for 1  
second. The Tone Squelchwill cycle from On to Off. See the  
CHANNEL DISPLAY AND UP/DOWN BUTTON OPERATION, page 15.  
(Note: If the receiver is configured for Tone Squelchmute, the  
transmitter must also be configured to send the tones, otherwise the  
receiver audio will remain muted. The signaling tones are also used to  
display the transmitter battery status.)  
7. Locking the Keyboard  
To avoid accidental reconfiguration of the Channel setting or Tone  
Squelch, the keyboard can be locked by holding both UP and DOWN  
BUTTONS (25) at the same time for 3 seconds. See the CHANNEL  
DISPLAY AND UP/DOWN BUTTON OPERATION, page 15.  
(33)  
8. Microphone and Instrument Operation  
The transmitter is now ready to use. The RECEIVED RF LEVEL ICON  
(11a), and either the A or B DIVERSITY ICON (11e) on the UHF-16  
receiver should now be lit, indicating a received signal from the  
transmitter. The receiver TX LED INDICATOR (10) should be on.  
a. Instrument Use.  
Plug the 1/4" phone plug from the INSTRUMENT (31) cord into the instrument. Verify that the INPUT  
SELECTOR SWITCH (23) is in the GT position. When ready to play, slide the audio OFF/STANDBY/ON  
SWITCH (28) to the ON position. Adjust the volume of the receiver as per the Audio Output Instrument  
Connections section of the preceding UHF-16 receiver instructions.  
(Note: The INPUT LEVEL CONTROL (26) is deactivated and not used when the UB-16 is in GT, instrument  
mode. Levels should be adjusted with the volume control of your instrument.)  
The UHF-16 receiver is equipped with an AF DISPLAY (11a) icon, which displays up to 4 segments,  
depending on the strength of the audio signal from the transmitter. Occasional flickering of the 4th bar segment  
of this display on loud inputs to the transmitter is normal. If this segment displays continuously, turn down the  
instrument volume, or noticeable distortion may result. Experiment and set for maximum possible gain without  
audible distortion on the high level peaks. (Note: Turning down the gain or instrument volume too much can  
compromise the signal-to-noise and is not recommended.)  
(Note: Scratchy noises can sometimes occur when some electric guitars with dirty pots or connections are  
used with any wireless system. Therefore, the supplied INSTRUMENT (23) cord has a factory installed  
capacitor inside the 1/4" plug. This capacitor provides first order filtering of the RF signal from the cord into the  
guitar and eliminates virtually all scratchy noises. Should your equipment still give you scratchy noises, we  
suggest these steps to eliminate them:  
1) Make sure all guitar volume and tone pots are clean and all contacts are solidthis is very important.  
2) Solder a 47pf capacitor across the hot to ground terminals of the guitars volume and tone pots to provide  
extra filtering.)  
13  
 
OPERATING INSTRUCTIONS  
UB-16 Bodypack Transmitter  
b. Microphone Use (with either a lavalier or headworn microphone)  
Secure the connection from the LAVALIER (33) or HEADWORN MIC (34) cord by turning the slip ring on  
the plug into the transmitter clockwise to thread it on to the jack. To unplug, reverse the process. To use  
the lavalier mic, attach it at chest level. Do not place it too close to the moutha distance of about six  
inches usually works best. To use the headworn mic, place it on the head and adjust the boom so that the  
mic is about one inch to the side of the front of the mouth.  
When ready to speak, verify that the INPUT SELECTOR SWITCH (23) is in either the HM position (for a  
connected headworn mic) or the LT position (for a lavalier mic) and slide the OFF/STANDBY/ON SWITCH  
(28) to the ON position. Adjust the volume of the receiver as per the Audio Output Microphone  
Connection section of the preceeding UHF-16 receiver instructions. For optimum performance, an INPUT  
LEVEL CONTROL (26) is provided. Adjust the gain by turning the control with the supplied small slotted  
screwdriver. For lavalier mic use, it is recommended that the level be set at about 2/3 maximum. For  
headworn mic use, it may be advisable to turn the gain down somewhat, depending on the volume levels  
expected. In either application, experiment and set for maximum possible gain without audible distortion  
on the high level peaks.  
(Note: Turning down the gain too much can compromise the signal-to-noise and is not recommended.)  
9. Cautions  
a. Feedback  
Observe care in selecting P.A. volume, transmitter location and speaker placement so that acoustic  
feedback, howling and screeching, will be avoided. Please also note the pickup pattern characteristics of  
the microphone selected. Omnidirectional mics pick up sound equally from all directions, and are prone to  
feedback if not used carefully. Unidirectional mics are more resistant to feedback, but pick up sound  
sources best that are directly in front of the mic. Also, mics that are farther from the sound source, such as  
lavaliers, require more acoustic gain and thus are also more prone to feedback than close-source mics  
such as handheld or headworn models that are used close to the mouth.  
b. Microphone Damage  
The headset or lavalier microphone element can easily be destroyed by the buildup of salts and minerals  
from perspiration and saliva. It is good practice to put a windscreen on the mic element at all times to  
protect it.  
c. No Audio  
If the receiver is configured for Tone Squelchmute, the transmitter must also be configured to send the  
tones, otherwise the receiver audio will remain muted. See preceding Mute Adjustment section, page 8.  
14  
 
CHANNEL DISPLAY AND  
UP/DOWN BUTTON OPERATION  
1. UHF-16 Receiver  
Operation of Channel Display, Battery Status, Up and Down buttons, Keyboard Lock, and Tone Squelch™  
a. Changing the Channel Assignment  
Press Up or Down button to change channels.  
b. Selecting Tone Squelch™ Mode  
Hold both Up and Down buttons at the same time for 1 second. Tone Squelchwill cycle from On to Off.  
The presence or absence of the word Channelindicates the Tone Squelchmode.  
If the receiver Tone Squelchis enabled, it must also be enabled on the transmitter otherwise the audio  
will remain muted.  
UNLOCKED  
LOCKED  
c. Selecting Keyboard Lock  
Hold both Up and Down buttons at the same time for 3  
seconds. Keyboard lock will cycle from Locked to Unlocked.  
The DOTto the right of the number indicates the keyboard is  
locked.  
Battery OK  
Battery LOW  
d. Battery Status Icon Operation  
The Battery Icon indicates the condition of the battery in the  
remote transmitter. Note that the Battery Icon will not display if  
the Tone Squelchis disabled.  
2. UH-16 and UB-16 Transmitters  
Operation of Channel Display and Up and Down buttons, Keyboard Lock, and  
Tone Squelch™  
a. Changing the Channel Assignment  
Press Up or Down button to change channels.  
The Channel number indicator will vanish after 10 seconds. The Tone  
Squelchindicator and Keyboard Lock indicator will show that the transmitter is On.  
b. Selecting Tone Squelch™ Mode / Activity Indicator  
Hold both Up and Down buttons at the same time for 1 second.  
Tone ON  
Tone OFF  
Tone Squelchwill cycle from On to Off.  
The “ ’’ or “  
’’ will remain on continuously and acts as an  
activity indicator to show that the transmitter is on.  
If the receiver Tone Squelchis enabled, it must also be enabled  
on the transmitter otherwise the audio will remain muted.  
c. Selecting Keyboard Lock  
Hold both Up and Down buttons at the same time for 3 seconds. Keyboard  
lock will cycle from Locked to Unlocked.  
15  
 
FREQUENCY GUIDE  
The UHF 16 system is available with a choice of three frequency bands, each with 16 user-selectable  
frequencies. Select the band and frequencies appropriate to the area/country in which the system is to be  
used.  
U.S.  
Band 1  
U.S./Europe  
Band 2  
Europe  
Band 3  
Channel  
1
726.10 MHz  
726.50 MHz  
727.00 MHz  
727.60 MHz  
728.30 MHz  
729.30 MHz  
731.40 MHz  
732.35 MHz  
734.00 MHz  
735.40 MHz  
736.60 MHz  
739.10 MHz  
739.90 MHz  
742.60 MHz  
744.15 MHz  
745.95 MHz  
793.40 MHz  
794.00 MHz  
796.60 MHz  
799.50 MHz  
801.10 MHz  
802.80 MHz  
804.90 MHz  
805.85 MHz  
807.45 MHz  
808.85 MHz  
810.05 MHz  
812.55 MHz  
813.35 MHz  
816.05 MHz  
817.60 MHz  
819.05 MHz  
846.20 MHz  
846.60 MHz  
847.10 MHz  
847.80 MHz  
848.80 MHz  
849.50 MHz  
850.90 MHz  
851.85 MHz  
853.45 MHz  
854.85 MHz  
856.05 MHz  
858.55 MHz  
859.35 MHz  
861.35 MHz  
862.05 MHz  
863.60 MHz  
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
16  
 
SPECIFICATIONS  
Dimensions:  
1.7x 7.5 x 8.9(43x190x226mm)  
Weight:  
1 lb, 14 oz (.9 kg)  
UHF 16 System  
Operating Frequency Range:  
16 channels switchable in pre-programmed bands  
up to 26 MHz wide in the 726-865 MHz range  
(country dependent)  
UB-16 & UH-16 Transmitters  
Models Available:  
UH-16 handheld mic, UB-16 bodypack  
RF Output Power:  
1 mW-50 mW max (country and band dependent)  
Harmonic and Spurious Emissions:  
- 50 dB  
Audio Input Level with ± 25 KHz nom. deviation:  
UH-16: 24 mV RMS (nom.)  
UB-16: 225 mV (Instr.), 150 mV (HM),  
75 mV (Lav)  
Freq. Synthesized:  
PLL system with frequency stability <0.005%  
Frequency Response:  
30 HZ-15 KHZ ±3 dB  
Dynamic Range:  
120 dB  
Harmonic Distortions:  
<0.5%  
Modulation:  
FM ±25 KHz nominal  
Operating Range:  
Input Impedance:  
250 feet typical (depending on site conditions) up to  
500+ feet optimum line-of-sight  
UH-16: 10K Ohms  
UB-16: 200K Ohm (Instr.), 10K Ohms (Lav),  
20K Ohms (HM)  
Controls:  
UHF-16 Receiver  
Receiving System:  
UH-16: Off/Standby/On switch, Channel Select  
Up/Down buttons  
UB-16: Off/Standby/On switch, Channel Select  
Up/Down buttons, Input Level Control,  
3-way input select switch for: lavalier, head mic,  
or music instrument  
Dual conversion superheterodyne with DigiTRU  
Diversity™  
Sensitivity:  
-107 dBm, nominal  
Selectivity:  
60 dB nominal ± 75 KHz offset  
Image Rejection:  
-70 dB, minimum  
Spurious Rejection:  
65 dB, nominal  
LED Indicator:  
Unit ON(single flash), Low Battery Alert (steady),  
Selected Channel Display, and Transmitter Active.  
Connectors:  
UH-16: None  
UB-16: Locking 3.5 mm mini jack  
Antenna Type:  
UH-16: Integral  
UB-16: External permanent, 3 inch  
Battery Type:  
2 X AA alkaline  
Battery Life:  
8-12 hours nominal  
Dimensions:  
UH-16: 8.75x 1.4(222 x 36 mm)  
UB-16: 4.0x 2.39x 0.9(102 x 61 x 23 mm)  
Weight:  
Mute Threshold:  
-90 dBm, adjustable  
Audio Output Level:  
Unbalanced output: 360 mV, adjustable  
Mic Level Balanced Output:  
24 mV  
Audio Output Impedance:  
Balanced and unbalanced: both 600 ohms  
Controls:  
Power On/Off switch, Level control, Up/Down  
Channel select buttons, Mute (RF squelch) adjust  
LED Indicators:  
Power on, Mute on  
LCD Display:  
Single backlit LCD panel indicating channel/  
frequency selected, received AF and RF level, A/B  
diversity status, and transmitter low battery alert  
Power Requirements:  
UH-16: 6.9 oz (193g) (w/o batteries)  
UB-16: 3.2 oz (89g)  
AC-DC adapter, 12 VDC@ 500 mA, 115/230 VAC  
Antenna:  
Right angle BNC or external remote (BNC)  
17  
 
SERVICE FOR YOUR NADY WIRELESS SYSTEM  
(U.S.) If you experience any operational problems with your system, please see the support page on the  
contact the Nady Service Department at 510.652.2411 for a Return Authorization (R/A) Number and a  
service quote (if out of warranty). Please make sure the R/A Number is clearly marked on the outside of  
any package you return for service and enclose a cashiers check or money order (if not prepaid with  
credit card). Ship the unit prepaid to: Nady Systems, Inc., Service Department,  
6701 Shellmound Street, Emeryville, CA 94608. Include a brief description of the problem you are  
experiencing. For service of a unit under Warranty, please follow the instructions on your Warranty Card  
regarding Warranty Service.  
(International) For service, please contact the NADY distributor in your country through the dealer from  
whom you purchased this product.  
DO NOT ATTEMPT TO SERVICE THIS UNIT YOURSELF, AS THAT WILL VOID YOUR WARRANTY.  
NOTE: OPERATION OF THIS DEVICE IN THE U.S. IS SUBJECT TO THE FOLLOWING  
CONDITIONS:  
1. THIS DEVICE MAY NOT CAUSE INTERFERENCE, AND  
2. THIS DEVICE MUST ACCEPT INTERFERENCE, INCLUDING INTERFERENCE THAT  
MAY CAUSE UNDESIRED OPERATION OF THE DEVICE.  
18  
 
6701 Shellmound Street Emeryville, California 94608  
Tel: 510.652.2411 Fax: 510.652.5075 www.nady.com  
 

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