Nady Systems Headphones U 800 User Manual

U-800  
UHF 800-Channel Wireless System  
OWNER’S MANUAL  
 
3. SYSTEM FEATURES  
U-800 RECEIVER  
• Unsurpassed state-of-the-art PLL UHF performance with 120dB dynamic range and long-  
range operation, up to 500 ft. (line-of-sight)  
• 800 user-selectable UHF frequencies, with one-touch Autoscan open-channel automatic  
selection  
• ASC™ (Auto-Sync Channels) download feature sends selected channel information to  
transmitter via IR sender for easy frequency synchronization  
• Sophisticated IF filtering for optimal simultaneous operation of up to 14 systems in the  
same location  
To facilitate multiple, simultaneous systems operation setup, the 800 selectable channels are  
available from 10 optimized factory pre-set groups of up to 14 compatible channels and 5  
additional user-select groups, all offering 800 channels each. All groups retain in memory the  
previously selected channels for that group for easy setup subsequently in the same location.  
• DigiTRU Diversity™ for maximum range and dropout protection  
• 120dB Dynamic Range — the quietest and best sounding UHF wireless available at any price  
Tone Squelch™ for locking out potential interference, and special circuitry for noiseless  
transmitter ON/OFF switching  
• Dual front-panel permanently attached swivel antennas  
• Front LCD panel displays A/B diversity, Group/Channel with frequency, ASC™ transfer  
status, RF/AF level, Mute (squelch) level, and push On/Off power switch  
• Back panel with Balanced XLR fixed Mic Level and adjustable Unbalanced ¼” jacks, audio  
Line Level outputs with volume control and DC input jack  
• Half-rack receiver design with unique snap-out, side panel locking tabs for single receiver  
or dual receivers (side-by-side) optional rack mounting  
• Externally powered with included DC adapter (120VAC/22VDC/400 mA)  
• Choice of transmitters: UH-800 handheld Mic or UB-800 bodypack—lavalier (LT),  
Headmic™ (HM), or instrument (GT)  
UH-800 HANDHELD MIC TRANSMITTER  
• Sleek metal housing with internal antenna for optimum aesthetics and durable long life  
• Features the Nady DM -10D unidirectional neodymium dynamic cartridge for optimum  
true sound, maximum feedback rejection and minimal handling noise  
• 800 easily selectable channels via IR Sync download for easy synchronization with  
receivers selected channel  
• Easy accessible audio level adjustment for optimum sound  
• Power On/Off and Audio Mute switch allows convenient audio muting with the  
transmitter “ON”  
• Status LED indicators for unit “ON” (green) and for low-battery alert “ON” (red)  
• Convenient, economical operation with two AA alkaline or rechargeable NiMH batteries  
UB-800 BODYPACK INSTRUMENT TRANSMITTER  
• Choice of transmitters: UB-800 bodypack—lavalier (LT), Headmic™ (HM), or instrument (GT)  
• 800 easily selectable channels via IR Sync download for easy synchronization with receivers  
selected channel  
• Easy accessible input level adjustment for optimum sound  
• Power On/Off and Audio Mute switch allows convenient audio muting with the transmitter “ON”  
• Bicolor LED status indicator for unit “ON” and for low battery alert “ON”  
• Convenient, economical operation with two AAA Alkaline or rechargeable NiMH batteries  
• Ultra-compact housing, removable antenna and unique locking 3.5mm mini plug connector  
for mic or instrument cable  
3
 
4. QUICK USER CONTROLS GUIDE  
3
3
U-800 RECEIVER: FRONT VIEW  
4
16  
2
1
5
18  
17  
9
12  
11  
10  
6
7
13  
14  
8
15  
1. POWER BUTTON BUTTON push in to power receiver ON or OFF  
2. POWER LED LED indicates receiver is turned ON  
3. DUAL ANTENNAS permanently mounted., rotate to 45° as shown for optimal  
reception  
4. ASC/IR infrared LED window for sync receiver and transmitter. Transmits LED  
Infrared signal for linking the receiver to the transmitter for frequency downloads  
5. LCD DISPLAY shows receiver current status  
6. MUTE ICON indicates audio muted  
7. AF INDICATOR displays received Audio level  
8. RF INDICATOR displays received radio signal level  
9. A/B INDICATORS indicates diversity A or B antenna reception when  
transmitter is on  
10. IR INDICATOR INDICATOR indicates IR ASC™ receiver-to-transmitter channel  
sync is in progress  
11. GROUP indicates group number  
12. CHANNEL indicates channel number  
13. MUTE LEVEL shows muting level  
14. SCAN ICON indicates scanning is in progress  
15. FREQUENCY indicates frequency in MHz  
16. UP BUTTON BUTTON to change the receiver MUTE level up, GRP/CH up by  
one step at a time or activate ASC™ sync in IR menu  
17. DOWN BUTTON to change the receiver MUTE level down, GRP/CH down by  
one step at a time  
18. MENU BUTTON repeatedly press the button to advance to the next menu, or press  
once to start the Auto Scan/IR/Sync function or to manually select GR/CH. Use  
MENU BUTTON for easy set up with ONE TOUCH PROGRAMMING. Start the  
IR link download of the receivers selected channel to the transmitter. Position the  
transmitter IR RECEPTOR WINDOW (37,44) 6-12” away from the receiver  
IR window, press the MENU button once and wait five second, the receiver will  
4
 
SCAN and IR automatically for the open channel. The IR INDICATOR will flash  
for 2 seconds. If the IR data download is successful, the receivers RF (8) and  
A/B INDICATORS (9) will also be on, indicating channel transfer is complete.  
See also section “6. Selecting Group/Channel, IR Programming and  
Simultaneous Multichannel Operation”  
U-800 RECEIVER: BACK VIEW  
19  
20  
21  
22  
19. UNBALANCED LINE OUT ¼” JACK Line level audio output, adjustable  
with Volume control  
20. DC INPUT JACK For connecting external AC/DC adapter to power receiver  
(DC22VDC/400mA)  
21. VOLUME CONTROL Selects desired output volume level for the Unbalanced  
Line Out  
22. BALANCED MIC OUT XLR JACK Audio output at fixed MIC level  
24  
25  
25  
23  
24  
27  
26  
27  
23. DC POWER SUPPLY ADAPTER 120VAC/22VDC/400mA  
24. SIDE MOUNT CLIP removes to leave space for optional rack ears  
25. ERM-12 SINGLE RACK KIT optional rack ears for single receiver rack  
mounting  
26. EJC-3 JOINING CLIP supplied with ERM-22 kit for joining two receivers  
side-by-side for dual rack mounting  
27. ERM-22 DUAL RACK KIT optional rack ears for rack mounting two  
receivers side by side  
5
 
UH-800 HANDHELD TRANSMITTER: FRONT AND BOTTOM VIEW  
28.  
MIC BALL/ ANTENNA windscreen also functions as antenna, so for best  
operating range do not handle this antenna during use  
BATTERY COVER unscrew CCW to open battery tube to insert batteries  
AUDIO INPUT LEVEL normally set at middle position, turn knob with small  
flat head screw driver for optimum sound  
29.  
30.  
31.  
32.  
TWO AA BATTERIES operating from two AA batteries  
BATTERY COMPARTMENT holds two AA alkaline or NiMH batteries,  
observe correct polarity  
33.  
34.  
35.  
36.  
POWER ON LED indicates the transmitter ON (green)  
LOW BATTERY LED indicates the batteries are weak (red)  
RF POWER slide the switch to power the transmitter ON or OFF  
AUDIO MUTE slide the switch to ON or OFF to mute audio with transmitter  
powered on  
IR RECEPTOR SENSOR/WINDOW infrared LED sensor for linking the  
transmitter to the receiver during IR selected frequency downloads  
37.  
29  
28  
31  
33  
34  
30  
35  
36  
OFF  
ON  
37  
32  
6
 
UB-800 BODYPACK TRANSMITTER: FRONT VIEW  
38. ANTENNA Removable antenna—should be attached during operation  
39. INPUT JACK Locking 3.5mm mini-jack for connecting audio input cord from  
lapel mic (LT), Headmic™ (LT/HM), or instrument (GT) cable  
40. AUDIO MUTE slide the switch to ON or OFF to mute audio with transmitter  
powered on  
41. BI-COLOR BATTERY STATUS LED indicates green for strong usable battery  
and red for low battery needing replacement  
42. POWER ON/OFF slide switch to power receiver ON or OFF  
43. INPUT VOLUME LEVEL adjusts input (LT/HM) audio level for optimal sound  
44. IR RECEPTOR SENSOR infrared LED sensor for linking the transmitter to the  
receiver during IR selected-frequency download  
45. BATTERY COMPARTMENT holds two AAA alkaline or NiMH batteries  
46. LATCHING BATTERY DOOR open fully to insert batteries  
47. BELT CLIP on back of unit  
48. INSTRUMENT CORD GT cable—connects instruments audio output to TX  
input jack  
49. HEADMIC™ Headworn microphone (choice of models)—connects to  
transmitter input jack  
50. LAVALIER MIC Lavalier (lapel) microphone (choice of models)—connects to  
transmitter input jack  
48  
38  
39 40 41 42  
49  
44  
45  
43  
50  
47  
46  
7
 
5. SYSTEM OPERATION  
U-800 RECEIVER  
Button Function  
The POWER ON Button (1) is used to power receiver ON or OFF. When the  
power button is pressed, the POWER LED (2) and the white backlight on the LCD  
DISPLAY (5) will light up indicating the receiver is ready. Press the Power button  
again to turn off the receiver. The power LED and the backlight on the LCD will be off  
indicating the receiver is off. At power-off the U-800 receiver will store the last set-  
tings entered and re-display them at power-on. It can be reprogrammed to any new  
Group/Channel, or Mute level. The default factory setting is Group 11, Channel 01  
and Mute 0 on the first LCD menu screen.  
The UP BUTTON (16) is pressed one step at a time to SCAN, IR or to increase  
GROUP, CHANNEL, MUTE by one level each time  
The DOWN BUTTON (17) is pressed one step at a time to decrease GROUP,  
CHANNEL, MUTE by one level each time  
The MENU BUTTON (18) is pressed one step at a time for Auto Scan Frequency  
or to Automatic GR/CH ASC™ Sync, or if pressed repeatedly the LCD DISPLAY (5)  
menu will cycle through the following screens.v  
During manual programming, press the MENU BUTTON (18) to confirm the selec-  
tion and advance to the next menu before the Auto Programming Function takes over  
after 5 sec.  
Rack Mounting the Receiver  
There are 2 options available for rack mounting the U-800 receiver: singly or side  
by-side with another U-800 receiver.  
a. Single mounting: Remove the receiver SIDE MOUNT CLIP (24) from each side of  
the receiver (as shown) and slide in the optional ERM-12 RACK EARS (25).  
b. Side-by-side double mounting: After removing the SIDE MOUNT CLIPS (24) from  
both U-800 receivers join the two receivers with the EJC-3 JOINING CLIP (26)  
and attach the ERM-22 RACK EARS (27) as shown.  
(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 U-800. Always ensure  
adequate airflow and heat dissipation in any rack configuration.)  
8
 
Powering the Receiver  
Plug the AC/DC ADAPTER (23) provided into the DC INPUT JACK (20)  
on the back of the receiver. Then plug the power supply into an AC outlet. (Note:  
Any 22V DC source with 400mA capability can also be used.) Press the POWER  
SWITCH (1) once to turn on the receiver. The POWER ON LED (2) and the LCD  
DISPLAY (5) will now light and the receiver is operational.  
Adjusting Antennas  
The U-800 has two permanently attached, flexible elbow ANTENNAS (3) for diver-  
sity reception. Unfold and rotate these antennas to operate the receiver. The optimal  
positions of the antennas are flared 45° out from the receiver sides and 90° 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.  
Adjusting the Mute Level/ RF Squelch  
The MUTE LEVEL/RF SQUELCH (13) can be changed anytime during the main  
screen display to quiet the receiver in high noise environment condition. The control  
ranges are from level 0 to level 5. The level should be adjusted to a lower number  
for the minimum RF squelch setting at which the RF INDICATOR (8) will remain on  
while your transmitter is in normal use, up to the maximum operating range antici-  
pated in use for your application. However, in areas of high RF activity, the squelch  
control may need to be adjusted to a higher number. If the transmitter is off and the  
receivers signal RF INDICATOR (8) or the diversity A or B INDICATOR (9) flickers  
or stays on continuously, the squelch should be adjusted to a higher number to stop  
the flickering. Be careful not to select too high a number setting as this may reduce  
the operating range to below what is needed. A range walk test will help in select-  
ing the proper level. If the range is not critical, note that a higher level (maximum  
squelch) setting will also yield a quieter mute function, which might be desired in  
certain applications. The squelch level is factory preset at maximum sensitivity and  
operating range (i.e. level 0 for minimum squelch level—maximum usable range).  
Note: For easier intuitive operation, the MIN and MAX indications for this control  
refer to the minimum and maximum operating range settings, not to the actual mute  
levels selected, which are the opposite as per above.  
Keyboard/Buttons Lock Function  
Use keyboard/Buttons Lock Function to lock or unlock the receiver controls, prevent-  
ing accidental adjustment during use: You can push and hold MENU BUTTON (18),  
then push UP BUTTON (16) to lock; push and hold MENU BUTTON (18), then  
push UP BUTTON (16) again to unlock. The Keyboard/Buttons must be unlocked  
before you can make a selection: AUTO SCAN, Group/Channel or MUTE levels.  
9
 
Audio Level and Peak LED Indicator  
SYSTEM OPERATION  
The U-800 receiver has a 5 bar AF LCD (7) display that typically shows a few bars  
indicating normal level audio signal from the transmitter. Occasional flickering of  
the fifth AF LCD (peak level) on loud inputs to the transmitter is normal. If the AF LCD  
lights up full bars continuously decrease the input audio level to the transmitter or  
overload distortion may result.  
Connecting the Audio Output  
The U-800 receiver has two type of outputs available, an adjustable level ¼”  
UNBALANCED LINE OUT (19) and a fixed level MIC out BALANCED MIC  
OUT XLR JACK (22). The ¼” unbalanced line out is controlled by the VOLUME  
CONTROL (21).  
For unbalanced line output connection, plug an audio cable with a ¼” mono  
(Tip/Sleeve) plug into the Unbalanced Line Out jack and plug the other end into your  
mixing board or amplifier. Adjusting the Volume control will increase or decrease the  
audio level at the ¼” Unbalanced Line Out only.  
(Note: When using the UB-800 instrument transmitter system, connect the  
Unbalanced Line Out directly to your instrument amp or preamp. At maximum  
receiver volume setting, the system output is approximately +4dB higher than a direct  
cord-to-amp connection.)  
For balanced Output connection, plug an audio cable with an XLR connector into the  
Balanced Mic Out XLR Jack socket and plug the other end into your mixing board or  
amplifier and control the audio levels from there.  
Both the ¼” Unbalanced Line Out and the XLR Balanced Mic Out can be used at the  
same time to connect to your mixing board, effect, or amplifier. Please follow below  
drawing for the audio cable/connector wiring.  
F-XLR  
1/4” Plug  
TIP  
SLEEVE  
Pin 2: +  
Pin 1: Ground  
Tip = signal (+)  
Sleeve = ground  
Pin 2: +  
Your U-800 receiver is now operational and ready to use. Proceed to the following  
instructions for the UH-800 handheld microphone transmitter or UB-800 bodypack  
transmitter included with your system.  
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.  
Note: : Only one transmitter can be used with one receiver. It is not possible to use  
two transmitters on the same frequency and mix the output of these transmitters into  
one wireless receiver.  
10  
 
Programming the U-800 to the Selected Group/Channel (frequency)  
The Receiver must be programmed for a Group/Channel (frequency) first then auto-  
matic synchronization using the IR ASC™ Sync function to the transmitter. For system  
set up procedures, see next section “6. Selecting Group/Channel, IR Pro-  
gramming and Simultaneous Multichannel Operation”  
UH-800 HANDHELD MICROPHONE TRANSMITTER (HT)  
Setting up the UH-800 Transmitter  
The UH-800 requires two AA alkaline or NiMH batteries to operate (do not mix  
types). Installing batteries by unscrewing counterclockwise the BATTERY COVER  
(29) and slide down, exposing the BATTERY COMPACTMENT (32). Insert two  
fresh AA BATTERIES (31), observing the correct polarity as marked, and screw the  
cover back on to the microphone. Make sure the cover is screwed clockwise com-  
pletely. Fresh alkaline batteries can last up to 10 hours in use, but in order to ensure  
optimum performance, it is recommended that you replace the batteries after every  
6-8 hours of use.  
Powering the UH-800 Transmitter On/Off  
Turn on the UH-800 by sliding the AUDIO SWITCH (36) to the OFF position first.  
Then slide the POWER SWITCH (35) to the ON position. The POWER ON LED  
(33) will stay on, indicating that the transmitter is now on. The BATTERY LED (34)  
will stay off, indicating usable battery strength. In the case of a dead or low battery,  
the low battery LED will light red continuously, indicating that the batteries should be  
replaced with fresh ones.  
To preserve battery life, turn the transmitter off when not in use. To turn the transmitter  
off, slide the RF POWER (35) switch to the OFF position. The POWER ON LED  
(33) is not lit up, indicating the unit is off. The MUTE ICON (6) on the receiver  
should be on, muting the audio out.  
At power off the transmitter will store the last settings entered and re-display them at  
the next power on. The default factory setting is Group 11, Channel 01.  
For optimum performance, an AUDIO INPUT LEVEL (30) is provided. Adjust the  
gain by turning the control with a small screwdriver. It is recommended that the level  
be set at about 1/2 maximum. Experiment and set for maximum possible gain with-  
out audible distortion on the high level peaks. (Note: Turning down the gain too much  
can compromise the signal-to-noise and it is not recommended.)  
The microphone is now ready to use. The diversity A/B INDICATORS (9) on the  
U-800 receiver should now be on, indicating a received signal from the transmitter.  
When ready to speak, slide the AUDIO MUTE (36) to the ON position. The MUTE  
ICON (6) on receiver should be off. Adjust the volume of the receiver as per the Au-  
dio Output Microphone Connection section of the above U-800 receiver instructions.  
11  
 
Note: : The windscreen of the UH-800 functions as a built-in antenna. For proper  
operation, never remove the windscreen during use, or exchange with another type.  
For optimum range maintain line-of-sight between the transmitter and the receiver  
whenever possible. Holding the microphone tightly, bridging across the windscreen  
and Mic tube, will also lessen range. Hold by the Mic tube housing only for optimum  
operation.  
Note: Observe care in selecting P.A. volume, transmitter location and speaker  
placement so that acoustic feedback (howling or screeching) will be avoided.  
Operating the UH-800 Handheld Transmitter  
The RF POWER (35) and the AUDIO MUTE (36) switches have two positions  
for power ON/OFF and audio mute ON/OFF respectively. During normal operation  
with the unit powered on standby, slide the RF POWER (35) switch to the ON posi-  
tion. You will feel a slight click indicating the ON position is selected. The receivers  
RF Indicator (8) and diversity A/B INDICATOR (9) should now be on, indicat-  
ing a received RF signal from the transmitter. When ready to transmit audio, slide the  
AUDIO MUTE (36) to ON to un-mute. To mute, slide the switch to OFF again. Ad-  
just the volume of the receiver per the previous section, Connecting the Audio Output.  
Note: Avoid acoustic feedback (howling or screeching) by taking care in selecting  
PA volume, transmitter location and speaker placement.  
Programming the UB-800 to the Selected Group/Channel (frequency)  
The transmitter must be programmed to the same frequency as selected for the re-  
ceiver via automatic synchronization using the IR ASC™ Sync function. It can not be  
programmed on the transmitter itself. See in next section “6. Selecting Group/  
Channel, IR Programming and Simultaneous Multichannel Opera-  
tion”.  
UB-800 BODYPACK MICROPHONE TRANSMITTER (LT, HM OR GT)  
Setting up the UB-800 Transmitter  
The UH-800 requires two AAA alkaline or NiMH batteries to operate (do not mix  
types). To install the batteries, lift the LATCHING BATTERY DOOR (46) and open  
up, exposing the BATTERY COMPARTMENT (45). Insert two fresh AAA batteries  
according to the polarity indicated on the transmitter body. Close the battery cover  
back onto the microphone, making sure it is secure. Fresh alkaline batteries can  
provide up to 8 hours of operation, but in order to ensure optimal performance it is  
recommended that the batteries be replaced after 4-6 hours of use or as indicated  
necessary by the BATTERY STATUS LED (41) lit RED.  
Powering the UB-800 Transmitter On/Off  
Turn on the UB-800 by sliding the AUDIO MUTE (40) to the OFF position first.  
Then slide the POWER ON/OFF (42) to the ON position. The BATTERY STA-  
TUS LED (41) will stay on GREEN and the transmitter is now on, indicating usable  
battery strength. In the case of a dead or low battery, the LEDs will not go on at all or  
the BATTERY STATUS LED (41) will stay on RED continuously, indicating that the  
batteries should be replaced with fresh ones.  
12  
 
To preserve battery life, turn the transmitter off when not in use. To turn the transmit-  
ter off, slide the POWER ON/OFF (42) switch to the OFF position. The BATTERY  
STATUS LED (41) is not lit up, indicating the unit is off. The MUTE ICON (6) on  
receiver should be on, muting the audio out.  
At power off the transmitter will store the last settings entered and re-display them at  
the next power on. The default factory setting is Group 11, Channel 01.  
For optimum performance, an INPUT VOLUME LEVEL (43) is provided (for LT/  
HM input mode operation only). Adjust the gain by turning the control with a small  
screwdriver. It is recommended that the level be set at about 1/2 maximum. Experi-  
ment 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 it is not recommended.)  
The microphone is now ready to use. The diversity A or B INDICATORS (9) on the  
U-800 receiver should now be lit, indicating a received signal from the transmitter.  
When ready to speak, slide the AUDIO MUTE ON/OFF SWITCH (40) to the  
ON position. The MUTE ICON (6) on receiver should be off. Adjust the volume of  
the receiver as per the Audio Output Microphone Connection section of the above  
U-800 receiver instructions.  
Note: The transmitter has a removable ANTENNA (38). For best operating range, it  
should be attached (screwed on tightly counterclockwise, or exchange with another type.).  
For best transmitting power during use, make sure it is not blocked. For optimum range  
maintain line-of-sight (no obstructions) between the transmitter and the receiver whenever  
possible. A walk test before use will determine the operating range in your application.  
Note: Observe care in selecting P.A. volume, transmitter location and speaker  
placement so that acoustic feedback (howling or screeching) will be avoided.  
Operating the UB-800 Transmitter  
The POWER ON/OFF SWITCH (42) and the AUDIO MUTE ON/OFF  
SWITCH (41) switches have two positions for power ON/OFF and audio mute  
ON/Standby respectively. During normal operation with the unit powered on  
standby, slide the RF POWER (35) switch to the ON position. You will feel a slight  
click indicating the ON position is selected. The receivers RF INDICATOR (8) and  
diversity A/B INDICATOR (9) should now be on, indicating a received RF signal  
from the transmitter. When ready to transmit audio, slide the AUDIO MUTE (36)  
to ON to un-mute. To mute, slide the switch to OFF again. Adjust the volume of the  
receiver per the previous section, Connecting the Audio Output.  
Note: Avoid acoustic feedback (howling or screeching) by taking care in selecting  
PA volume, transmitter location and speaker placement.  
13  
 
Connecting Input Audio Source  
Lapel/Head Mic Uses (UB-800 LT/HM)  
The mini 3.5mm locking INPUT JACK (39) is for connecting the audio input from a  
lavaliere/lapel Mic (LT), a Head Mic™ (HM), or an instrument (GT) cable, depending  
on which transmitter version is being used. Secure the connection to the cable by tight-  
ening the cable mini plugs outer ring counterclockwise. When ready to play, slide the  
AUDIO MUTE ON/OFF SWITCH (40) to the ON position to un-mute the audio.  
Adjust the INPUT VOLUME LEVEL (43) on the transmitter for suitable level.  
Instrument Use (UB-800 GT)  
Secure the connection of the GT (instrument) cable by tightening the mini plug outer  
ring counterclockwise onto the 3.5mm locking INPUT JACK (39). When ready  
to play, slide the AUDIO MUTE ON/OFF SWITCH (40) to the ON position to  
un-mute the audio. Adjust the volume on the receiver for one-to-one unity gain with  
a hardwired cord or select up to an added 4-5dB boost by adjusting the receiver  
volume to maximum for normal use with guitars and bass guitars.  
Note: The audio level should be adjusted on the instrument as when using a hard-  
wired cord.  
Programming the UB-800 to the Selected Group/Channel (frequency)  
The transmitter must be programmed to the same frequency as selected for the receiver  
via automatic synchronization using the IR ASC™ Sync function. It cannot be pro-  
grammed on the transmitter itself. See next section “6. Selecting Group/Channel,  
IR Programming and Simultaneous Multichannel Operation”.  
6. SELECTING GROUP/CHANNEL, IR PROGRAMMING  
AND SIMULTANEOUS MULTICHANNEL OPERATION  
Note: Note: The transmitter should be turned ON and ready for the IR communica-  
tions with the receiver IR receptor for the following process.  
Note: If no button is pressed within the five seconds period during a selection, the  
program is terminated and the process needs to be repeated.  
Note: For normal operation, the transmitter should have the same channel as dis-  
played on the receiver.  
Choosing Group/Channel for the System  
The receiver offers a choice of 15 groups: 10 that are Factory PRESET (Group 11  
to 1A) and 5 that are User SELECTABLE (Group 1B to 1F). If the Factory PRESET  
Group mode is chosen, only a limited numbers of channels are available in these  
groups. For most convenient setup, each of these groups offers from 3 to 14 channels  
(depending on group selected) to choose from that are factory preset for simultaneous  
multichannel operation compatibility and are retained in memory after the receiver  
is powered off. For the User SELECTABLE Group 1B-1F mode, a letter “U” will lit up  
on the LCD DISPLAY (5) instead of the CHANNEL (12) number as in the Factory  
PRESET Groups. Each User SELECTABLE Group has 800 channels to choose from  
either by manually selecting a channel or using the Auto-Scan in 1MHz segment  
increments at a time within the frequency band and they are retained in memory  
14  
 
after receiver is powered off. This facilitates easy setup by enabling quick selection of  
stored channels for any group, i.e, selecting any group will automatically display the  
last channel selected for that group. See section “11. U-800 Frequency Lists”  
for available channels in each group. The previous group and channel used is stored  
in memory automatically when receiver and transmitter are turned off after operation.  
Selecting a different group on the receiver in subsequent use will display a differ-  
ent channel as previously selected for that group, however, the transmitter will need  
again to be sync’ed to that new frequency to complete the system setup for operation.  
Receiver ASC/IR Sync GR/CH (Frequency)  
If different frequencies than previously stored in both the receiver and transmit-  
ter memories are needed, there are three ways to program the receiver and then  
sync the selected Group/Channel to the transmitter: One-Touch Automatic ASC™/  
Auto Sync receiver to transmitter, manual SCAN for Group/Channel, or manual  
select Group/Channel from the Factory Preset or User Selectable channel. Place the  
transmitters IR RECEPTOR SENSOR WINDOW (37, 44) 6-12” away from the  
receivers IR WINDOW (4) before starting the following steps.  
• For One-Touch channel Autoscan and Automatic ASC™/Auto Sync from the  
receiver to the transmitter, press the MENU BUTTON (18) once, wait for about  
5 seconds, the receiver will start process automatically with no further user action  
required. A running bar in a clockwise direction on the LCD DISPLAY (5) shows  
the scanning process which normally takes about two seconds. When it finds an  
interference-free channel, the receiver stores the channel for use, and it will begin  
ASC™ sync IR download of the selected channel to the transmitter automatically.  
To manually scan the selected Group/Channel, press the MENU BUTTON (18) twice  
for AUTOSCAN menu, press UP BUTTON (16) once and it will start scanning. A  
running bar in a clockwise direction shows the scanning process, which normally takes  
about 2 seconds. When it finds an interference-free channel, it will display and store the  
frequency/channel for use. It can be rescanned again for a new frequency by pressing  
the UP button or pressing the MENU BUTTON twice to IR MENU (IR icon will lit up for IR  
function), then pressing UP BUTTON to start IR programming.  
To manually select Group/Channel press the MENU BUTTON (18) once for  
GROUP (11) selection for Factory PRESET Group 11 to 1A mode or User SELECT-  
ABLE Group 1B to 1F mode. Use the UP/DOWN Buttons to change the group. Af-  
ter selecting a group, press the MENU BUTTON twice for channel selection menu.  
Use the UP/DOWN Buttons to change the channels (frequencies) that are avail-  
able in each group. [Note: for Group11 to 1A, the CH (12) display will indicate  
the channel number chosen, and for Group 1B to 1F only the letter “U” and the  
frequency chosen will be displayed. See section “11. U-800 Frequency Lists”  
for available channels in each group]. After finishing channel selection, press the  
MENU BUTTON once or wait a few seconds for IR MENU, and then press UP BUT-  
TON to start IR programming.  
This completes the GP/CH (frequency) programming. The next section outlines the  
procedure for sync’ing the receivers programmed channel to the transmitter.  
15  
 
Receiver/Transmitter ASC™ IR Sync Manual Programming  
To manually program the pre-selected Group/Channel (frequency) from the receiver  
to the transmitter, place the transmitters IR RECEPTOR SENSOR WINDOW (37,  
44) 6-12” away from the receivers IR WINDOW (4). Press the MENU BUTTON  
(18) four times to the IR Screen Display and then press the UP BUTTON (16) to  
start IR programming. The flashing IR INDICATOR (10) icon indicates IR transmis-  
sion is in progress. When the synchronization is completed successfully (usually in  
less than 2 seconds), the RF INDICATOR (8) and the diversity A or B INDICA-  
TOR (9) on the receiver will display, indicating that the IR linking is completed. The  
LCD DISPLAY SCREEN (5) will show the selected channel. If the UP button is not  
pressed during the two seconds of active data transfer, the IR INDICATOR (10) will  
not flash, the LCD Display will revert to the main menu, the receiver will not link to the  
transmitter, and the transmitters previously programmed channel remains unchanged.  
Instructions for Setup of Simultaneous Multichannel Operation  
This U-800 receiver is capable of finding an open channel with its autoscan capabil-  
ity. This built-in feature is a quick, convenient way to set up many wireless systems at  
the same location for simultaneous multichannel operation.  
If you are using multiple transmitters at the same location, set up the first transmitter and  
leave it ON and keep 10 feet away from the receivers and 1 foot away from transmitter  
to transmitter. This avoids possible duplicate selection of the same channel as already  
selected for the first receiver. Then start the autoscan function on the second receiver.  
Repeat this procedure for all receiver/transmitters to be used in your system. Finally  
with all the transmitters ON, perform a range walk test in the location these systems will  
be used in to check for potential crosstalk interference in this application.  
If you are not satisfied with any of the channels scanned, repeat the autoscan proce-  
dure for that receiver again anytime for finding another free channel.  
This process can be simplified if you select channels within Factory SELECTED Groups  
11 to1A, as the channels within those groups are mutually compatible (unless there is  
outside interference on any of the selected frequencies). If there is any such interfer-  
ence in your location, select as many channels as you can using these 10 groups and  
then select additional open channels as needed (depending on number of systems to  
be operated simultaneously) from Groups 1B to 1F. As noted above all these groups  
will retain in memory the previously selected channels for that group for easy setup  
subsequently in that same location.  
16  
 
7. CAUTIONS AND TROUBLESHOOTING  
Feedback  
Avoid acoustic feedback (howling or screeching) by taking care in selecting PA  
volume, transmitter location and speaker placement.  
Please also note the pickup pattern characteristics of the microphone selected.  
Unidirectional microphones are more resistant to feedback. However, they pick up  
sound sources best that are directly in front of the microphone. Also, mics that are  
farther from the sound source (such as a handheld) require more acoustic gain and  
thus are also more prone to feedback than close-source mics.  
No or Low Audio  
If you are not getting audio through the system, carefully re-check all setups.  
Especially note that the receiver and transmitter must be set to operate on the same  
RF channel. Also confirm that the transmitters AUDIO MUTE (36, 40) is not in the  
OFF position. The receivers UNBALANCED LINE OUT (19) is adjustable so make  
sure the VOLUME CONTROL (21) is set properly.  
RF Interference and Finding Open Channels  
The FCC mandates the following information be provided to all end users of this  
equipment:  
Consumer Alert  
Most users do not need a license to operate this wireless microphone system.  
Nevertheless, operating this microphone system without a license is subject to certain  
restrictions: the system may not cause harmful interference; it must operate at a low  
power level (not in excess of 50mW); and it has no protection from interference  
received from any other device. Purchasers should also be aware that the FCC is  
currently evaluating use of wireless microphone systems, and these rules are subject  
to change.  
For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC)  
If you encounter slight receiving interference when the transmitter is far from the  
receiver (from other than an operating TV station on the same frequency), it can  
often be overcome by adjusting the receiver‘s MUTE LEVEL/SQUELCH (13)—see  
Adjusting the Mute Level / RFSquelch.  
If receiving interference on a selected channel with the transmitter off, or if you en-  
counter interferences in operating multiple U-800 systems simultaneously at the same  
location see: “6. Selecting Group/Channel, IR Programming and Simul-  
taneous Multichannel Operation” for proper procedures for reprogramming  
system(s) for open channels.  
17  
 
8. MISCELLANEOUS TIPS  
• The receiver antennas should be kept away from any metal surfaces whenever  
possible as they can reflect away or shield the incoming RF signal.  
• If the receivers volume control is set too high, it may overdrive the input of the  
attached audio mixer, causing distortion. Conversely, if the output is set too low, the  
overall signal-to-noise ratio of the system may be reduced, causing noticeable hiss.  
If such noise occurs, adjust the output level of the receiver so that highest sound  
pressure level going into the microphone transmitter causes no input overload in  
the mixer, but permits the mixer level control to operate in the normal range (not  
too high and not too low). This provides the optimal signal-to-noise for the entire  
system.  
• Before inserting the batteries, ensure that they are inserted with the correct polarity.  
• Before operation, confirm that the receiver and associated transmitter are tuned to  
the same frequency group and channel number.  
• After making a receiver channel change, ensure that the corresponding change is  
also made on the matching transmitter.  
• Use only new alkaline or fully recharged NiMH batteries. Do not use “general  
purpose” carbon batteries. When batteries are weak, replace all the batteries at the  
same time. Do not mix new and old batteries.  
• Position the receiver so that it has the least possible obstructions between it and the  
transmitter. Line-of-sight is best!  
• During operation, the transmitter and the receiver should be as close as possible for  
optimum results but never closer than 3 ft. (1 m) as that may overload the receivers  
input circuitry and cause noises.  
• If rack mounting the receiver, keep away from heat sources such as amps by  
allowing enough space between them for adequate ventilation.  
• For the best operation, the receiver should be placed at least 3 ft. (1 m) above the  
ground and 3 ft. (1 m) away from a wall or metal surface. The transmitter should  
also be at least 3 ft. (1 m) from the receiver. Keep antennas away from noise  
sources such as motors, automobiles, neon lights, signal processors, computers, as  
well as large metal objects.  
• A receiver cannot receive signals from two or more transmitters simultaneously.  
Turn the transmitter off when it is not in use. For longest life, remove the batteries if  
the unit is not to be used for a long period as the transmitters draw a tiny residual  
current to maintain the programmed settings, even when turned off. Also, since  
batteries installed for a long time can sometimes corrode and/or leak, causing  
damage, it is generally recommended that batteries be removed whenever the  
transmitters are not being used.  
• When using the bodypack for instrument use: Scratchy noises can sometimes occur  
when an electric guitar with dirty pots or connections is used with a wireless system.  
Therefore, the supplied 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 produce scratchy noise, we suggest these steps to eliminate problems:  
1) Make sure all guitar volume and tone pots are clean and all contacts are  
solid. This is very important.  
2) Solder a 47pF capacitor across the pot to ground terminal of the guitars  
volume and tone pots to provide extra filtering.  
18  
 
9. SPECIFICATIONS  
U-800 OVERALL SYSTEM PERFORMANCE  
Operating Frequency Range  
Freq. Synthesized  
PLL system frequency stability  
Frequency Response  
Dynamic Range  
Harmonic Distortion  
Modulation  
Operating Range  
470MHz–510MHz, two Bands  
(800 channels switchable) 25kHz/step  
<0.005%  
50Hz-18kHz +/-3dB  
120dB  
<0.5%  
FM (F3E) +/-50kHz normal, +/-100kHz max  
150-250 feet typical, 500+feet max line-of-sight  
U-800 RECEIVER  
Receiver System  
Dual conversion Super Heterodyne with Digi-True  
Diversity (dual antennas with optimum reception  
selected)  
60dB, normal +/-75kHz offset  
-70dB, minimum  
-107dBm, normal  
65dB, normal  
Adjustable (-65dBm to -95dBm), Tone Squelch  
40kHz  
Selectivity  
Image Rejection  
Sensitivity  
Spurious Rejection  
Mute /Squelch  
Controls  
Power ON/OFF push switch, VOLUME line level  
pot, MENU, UP/DOWN buttons  
MUTE, AF/RF bars, A/B diversity, IR, GR/CH, MUTE  
Level, SCAN, Frequency  
LCD Display  
LED indicator  
Audio Outputs  
Power on  
LINE OUT UNBALANCED: adjustable line audio  
output  
MIC OUT BALANCED  
Output Impedance  
Power Requirement  
Antennas  
Fixed Mic level audio output  
Unbalanced: 1k and Balanced: for 600 loads  
22VDC/0.4A  
Dual permanently attached swivel antennas  
8.1”W x 7.5”D x 1.75”H (20.7cm x 19cm x 4.4cm)  
1lbs (454g)  
Dimensions  
Weight  
Housing Construction  
ABS Plastic  
UH-800 HANDHELD TRANSMITTER  
RF Output Power  
Harmonic/Spurious Emission  
Impedance  
+17dBm Max, +14dBm (25mW typical)  
-50dBc normal  
3.0 k  
Controls  
Power and Audio ON/OFF switches, Input Level  
Power ON (GREEN), Low Battery ON (RED)  
Integral  
LED Display  
Antenna Type  
Battery Type  
2 x AA alkaline batteries operation  
8-10 hours typical  
9”L x 2”D (22.86cm x 5.08cm)  
11.6oz (329g)  
Metal  
Battery Life  
Dimensions  
Weight (w/o batteries)  
Housing Construction  
19  
 
UB-800 BODYPACK TRANSMITTER  
RF Output Power  
Harmonic/Spurious Emission  
Input Impedance  
Controls  
Input Connector  
LED Display  
+17dBm Max, +14dBm (25mW typical)  
-50dBc normal  
4.7k (Lavalier); 500 k (Instrument)  
Power and Audio ON/OFF switches, Input Level  
Locking 3.5mm mini-jack  
Bi-Color - Power ON (GREEN) and Low Battery ON  
(RED)  
Antenna Type  
Battery Type  
Battery Life  
Dimensions  
External Removable  
2 x AAA alkaline or NiMH  
6-8 Hours typical, alkaline  
3.25”W x 2.18”D x 1”H (8.25cm x 5.53cm x  
2.54cm)  
Weight (w/o batteries)  
Housing Construction  
3.9 oz (111g)  
ABS Plastic  
Specifications subject to change at any time without prior notice for purposes of  
product improvement  
10. FREQUENCY PLAN  
800 Channels/25 KHz per step  
Band 1: 470.000MHz–489.975MHz  
Band 2: 490.000MHz–509.975 MHz  
20  
 
11. U-800 FREQUENCY LISTS  
Band 1: U-800 Frequency Listing Groups from 11 to 1A (470.000MHz-489.975MHz)  
FACTORY PRESET CHANNELS  
USER SELECTABLE CHANNELS  
Group 11  
470.325  
470.725  
471.225  
472.025  
473.025  
474.425  
475.125  
476.325  
476.625  
479.125  
482.125  
484.125  
488.325  
489.425  
Group 12  
470.025  
470.625  
471.425  
472.425  
474.025  
476.025  
478.825  
483.025  
486.025  
489.225  
Group 13  
470.050  
470.925  
472.125  
473.625  
476.025  
479.025  
483.225  
489.525  
Group 14  
470.125  
470.425  
475.325  
Group 15  
470.725  
475.825  
476.425  
Group 16  
471.425  
471.725  
478.025  
Group 17  
471.300  
471.750  
472.350  
473.100  
474.300  
475.800  
Group 18  
477.300  
477.750  
478.350  
479.350  
480.300  
481.800  
Group 19  
483.300  
483.750  
484.350  
485.100  
486.300  
487.800  
Group 1A  
488.100  
489.450  
489.750  
Groups 1B-1F  
CH  
CH  
CH  
CH  
CH  
CH  
CH  
CH  
CH  
1
2
3
4
5
6
7
8
9
CH  
1
2
3
470.000  
CH  
470.025  
CH  
470.050  
:
:
:
:
:
:
:
:
:
:
:
:
EVERY 25KHz  
:
CH 10  
CH 11  
CH 12  
CH 13  
CH 14  
:
:
CH 798  
CH 799  
CH 800  
489.925  
489.950  
489.975  
Band 1: U-800 Frequency Listing Channels for each Group from 1B to 1F  
(470.000MHz-489.975MHz)  
USER SELECTABLE CHANNELS  
CHS  
1
51  
101  
151  
201  
251  
301  
351  
401  
451  
501  
551  
601  
651  
701  
751  
1
2
470.000  
470.025  
471.250  
471.275  
472.500  
472.525  
473.750  
473.775  
475.000  
475.025  
476.250  
476.275  
477.500  
477.525  
478.750  
478.775  
480.000  
480.025  
481.250  
481.275  
482.500  
482.525  
483.750  
483.775  
485.000  
485.025  
486.250  
486.275  
487.500  
487.525  
487.550  
487.575  
487.600  
487.625  
487.650  
487.675  
487.700  
487.725  
487.750  
487.775  
487.800  
487.825  
487.850  
487.875  
487.900  
487.925  
487.950  
487.975  
488.000  
488.025  
488.050  
488.075  
488.100  
488.125  
488.150  
488.175  
488.200  
488.225  
488.250  
488.275  
488.300  
488.325  
488.350  
488.375  
488.400  
488.425  
488.450  
488.475  
488.500  
488.525  
488.550  
488.575  
488.600  
488.625  
488.650  
488.675  
488.700  
488.725  
488.750  
488.775  
3
470.050  
470.075  
470.100  
470.125  
470.150  
470.175  
470.200  
470.225  
470.250  
470.275  
470.300  
470.325  
470.350  
470.375  
470.400  
470.425  
470.450  
470.475  
470.500  
470.525  
470.550  
470.575  
470.600  
470.625  
470.650  
470.675  
470.700  
470.725  
470.750  
470.775  
470.800  
470.825  
470.850  
470.875  
470.900  
470.925  
470.950  
470.975  
471.000  
471.025  
471.050  
471.075  
471.100  
471.125  
471.150  
471.175  
471.200  
471.225  
471.300  
471.325  
471.350  
471.375  
471.400  
471.425  
471.450  
471.475  
471.500  
471.525  
471.550  
471.575  
471.600  
471.625  
471.650  
471.675  
471.700  
471.725  
471.750  
471.775  
471.800  
471.825  
471.850  
471.875  
471.900  
471.925  
471.950  
471.975  
472.000  
472.025  
472.050  
472.075  
472.100  
472.125  
472.150  
472.175  
472.200  
472.225  
472.250  
472.275  
472.300  
472.325  
472.350  
472.375  
472.400  
472.425  
472.450  
472.475  
472.550  
472.575  
472.600  
472.625  
472.650  
472.675  
472.700  
472.725  
472.750  
472.775  
472.800  
472.825  
472.850  
472.875  
472.900  
472.925  
472.950  
472.975  
473.000  
473.025  
473.050  
473.075  
473.100  
473.125  
473.150  
473.175  
473.200  
473.225  
473.250  
473.275  
473.300  
473.325  
473.350  
473.375  
473.400  
473.425  
473.450  
473.475  
473.500  
473.525  
473.550  
473.575  
473.600  
473.625  
473.650  
473.675  
473.700  
473.725  
473.800  
473.825  
473.850  
473.875  
473.900  
473.925  
473.950  
473.975  
474.000  
474.025  
474.050  
474.075  
474.100  
474.125  
474.150  
474.175  
474.200  
474.225  
474.250  
474.275  
474.300  
474.325  
474.350  
474.375  
474.400  
474.425  
474.450  
474.475  
474.500  
474.525  
474.550  
474.575  
474.600  
474.625  
474.650  
474.675  
474.700  
474.725  
474.750  
474.775  
474.800  
474.825  
474.850  
474.875  
474.900  
474.925  
474.950  
474.975  
475.050  
475.075  
475.100  
475.125  
475.150  
475.175  
475.200  
475.225  
475.250  
475.275  
475.300  
475.325  
475.350  
475.375  
475.400  
475.425  
475.450  
475.475  
475.500  
475.525  
475.550  
475.575  
475.600  
475.625  
475.650  
475.675  
475.700  
475.725  
475.750  
475.775  
475.800  
475.825  
475.850  
475.875  
475.900  
475.925  
475.950  
475.975  
476.000  
476.025  
476.050  
476.075  
476.100  
476.125  
476.150  
476.175  
476.200  
476.225  
476.300  
476.325  
476.350  
476.375  
476.400  
476.425  
476.450  
476.475  
476.500  
476.525  
476.550  
476.575  
476.600  
476.625  
476.650  
476.675  
476.700  
476.725  
476.750  
476.775  
476.800  
476.825  
476.850  
476.875  
476.900  
476.925  
476.950  
476.975  
477.000  
477.025  
477.050  
477.075  
477.100  
477.125  
477.150  
477.175  
477.200  
477.225  
477.250  
477.275  
477.300  
477.325  
477.350  
477.375  
477.400  
477.425  
477.450  
477.475  
477.550  
477.575  
477.600  
477.625  
477.650  
477.675  
477.700  
477.725  
477.750  
477.775  
477.800  
477.825  
477.850  
477.875  
477.900  
477.925  
477.950  
477.975  
478.000  
478.025  
478.050  
478.075  
478.100  
478.125  
478.150  
478.175  
478.200  
478.225  
478.250  
478.275  
478.300  
478.325  
478.350  
478.375  
478.400  
478.425  
478.450  
478.475  
478.500  
478.525  
478.550  
478.575  
478.600  
478.625  
478.650  
478.675  
478.700  
478.725  
478.800  
478.825  
478.850  
478.875  
478.900  
478.925  
478.950  
478.975  
479.000  
479.025  
479.050  
479.075  
479.100  
479.125  
479.150  
479.175  
479.200  
479.225  
479.250  
479.275  
479.300  
479.325  
479.350  
479.375  
479.400  
479.425  
479.450  
479.475  
479.500  
479.525  
479.550  
479.575  
479.600  
479.625  
479.650  
479.675  
479.700  
479.725  
479.750  
479.775  
479.800  
479.825  
479.850  
479.875  
479.900  
479.925  
479.950  
479.975  
480.050  
480.075  
480.100  
480.125  
480.150  
480.175  
480.200  
480.225  
480.250  
480.275  
480.300  
480.325  
480.350  
480.375  
480.400  
480.425  
480.450  
480.475  
480.500  
480.525  
480.550  
480.575  
480.600  
480.625  
480.650  
480.675  
480.700  
480.725  
480.750  
480.775  
480.800  
480.825  
480.850  
480.875  
480.900  
480.925  
480.950  
480.975  
481.000  
481.025  
481.050  
481.075  
481.100  
481.125  
481.150  
481.175  
481.200  
481.225  
481.300  
481.325  
481.350  
481.375  
481.400  
481.425  
481.450  
481.475  
481.500  
481.525  
481.550  
481.575  
481.600  
481.625  
481.650  
481.675  
481.700  
481.725  
481.750  
481.775  
481.800  
481.825  
481.850  
481.875  
481.900  
481.925  
481.950  
481.975  
482.000  
482.025  
482.050  
482.075  
482.100  
482.125  
482.150  
482.175  
482.200  
482.225  
482.250  
482.275  
482.300  
482.325  
482.350  
482.375  
482.400  
482.425  
482.450  
482.475  
482.550  
482.575  
482.600  
482.625  
482.650  
482.675  
482.700  
482.725  
482.750  
482.775  
482.800  
482.825  
482.850  
482.875  
482.900  
482.925  
482.950  
482.975  
483.000  
483.025  
483.050  
483.075  
483.100  
483.125  
483.150  
483.175  
483.200  
483.225  
483.250  
483.275  
483.300  
483.325  
483.350  
483.375  
483.400  
483.425  
483.450  
483.475  
483.500  
483.525  
483.550  
483.575  
483.600  
483.625  
483.650  
483.675  
483.700  
483.725  
483.800  
483.825  
483.850  
483.875  
483.900  
483.925  
483.950  
483.975  
484.000  
484.025  
484.050  
484.075  
484.100  
484.125  
484.150  
484.175  
484.200  
484.225  
484.250  
484.275  
484.300  
484.325  
484.350  
484.375  
484.400  
484.425  
484.450  
484.475  
484.500  
484.525  
484.550  
484.575  
484.600  
484.625  
484.650  
484.675  
484.700  
484.725  
484.750  
484.775  
484.800  
484.825  
484.850  
484.875  
484.900  
484.925  
484.950  
484.975  
485.050  
485.075  
485.100  
485.125  
485.150  
485.175  
485.200  
485.225  
485.250  
485.275  
485.300  
485.325  
485.350  
485.375  
485.400  
485.425  
485.450  
485.475  
485.500  
485.525  
485.550  
485.575  
485.600  
485.625  
485.650  
485.675  
485.700  
485.725  
485.750  
485.775  
485.800  
485.825  
485.850  
485.875  
485.900  
485.925  
485.950  
485.975  
486.000  
486.025  
486.050  
486.075  
486.100  
486.125  
486.150  
486.175  
486.200  
486.225  
486.300  
486.325  
486.350  
486.375  
486.400  
486.425  
486.450  
486.475  
486.500  
486.525  
486.550  
486.575  
486.600  
486.625  
486.650  
486.675  
486.700  
486.725  
486.750  
486.775  
486.800  
486.825  
486.850  
486.875  
486.900  
486.925  
486.950  
486.975  
487.000  
487.025  
487.050  
487.075  
487.100  
487.125  
487.150  
487.175  
487.200  
487.225  
487.250  
487.275  
487.300  
487.325  
487.350  
487.375  
487.400  
487.425  
487.450  
487.475  
488.800  
488.825  
488.850  
488.875  
488.900  
488.925  
488.950  
488.975  
489.000  
489.025  
489.050  
489.075  
489.100  
489.125  
489.150  
489.175  
489.200  
489.225  
489.250  
489.275  
489.300  
489.325  
489.350  
489.375  
489.400  
489.425  
489.450  
489.475  
489.500  
489.525  
489.550  
489.575  
489.600  
489.625  
489.650  
489.675  
489.700  
489.725  
489.750  
489.775  
489.800  
489.825  
489.850  
489.875  
489.900  
489.925  
489.950  
489.975  
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
Band 2: contact Nady Systems for frequency plan  
21  
 
12. OPTIONAL ACCESSORIES  
ERM-12 Single rack mount kit for one U-800 receiver  
ERM-22 Dual rackmount kit for two U-800 receivers, includes EJC-3 joining clip  
13. SERVICE INFORMATION  
In the U.S. If you are experiencing operational problems with your system,  
wireless system require service, please contact the Nady Service Department at  
(510) 652-2411 for a Return Authorization (R/A) Number and service quote (if out  
of warranty). Make sure the R/A Number is clearly marked on the outside of the  
package that you are returning.  
If your unit is out of warranty, please enclose a cashiers check or money order (or  
pay by credit card) per instructions by the Nady Service Department. Ship your unit  
prepaid to: Nady Systems, Service Dept, 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 in the following section.  
Outside the U.S. For service or warranty matters please contact the Nady  
distributor in your country through the dealer/store from which you purchased this  
product.  
Do not attempt to service this unit yourself as it can be dangerous  
and will also void the warranty.  
22  
 
14. ONE YEAR LIMITED WARRANTY  
Nady Systems, Inc. warrants to the original consumer purchaser that the unit is free from any defects  
in material or workmanship for a period of one year from the date of original retail purchase. If any  
such defect is discovered within the warranty period, Nady Systems, Inc. will repair or replace the unit  
free of charge, subject to verification of the defect or malfunction upon return to Nady Systems. Please  
do not return your Nady product to the store where it was purchased as Nady Systems handles your  
warranty service directly. Communication with our Service Department is the most efficient means of  
servicing your unit and we are dedicated to keeping you a satisfied customer.  
To the extent permitted by law, any applicable implied warranties, including warranties of  
merchantability and fitness are hereby limited to one year from the date of purchase. Consequential  
or incidental damages resulting from a breach of any applicable express or implied warranties are  
hereby excluded. This warranty is in lieu of all other agreements and warranties, general or special,  
express or implied and no representative or person including a Nady dealer, agent, or employee is  
authorized to assume for us any other liability in connection with the sale or use of this Nady Systems’  
product.  
Whereas some states do not allow limitations on how long implied warranties last, and do not allow  
exclusion of incidental or consequential damages, the above limitations and exclusions may not apply to  
you. This warranty gives you specific legal rights and you may also have other rights which may vary from  
state to state.  
This warranty is subject to the following conditions:  
1) This system must have been purchased from an authorized Nady dealer and all warranty service must be  
performed by Nadys service department. Any service not performed by Nady will automatically void this  
warranty.  
2) Items not covered: physical damage resulting from improper handling of the unit in transit from the  
factory by the shipper (Nady Systems is not responsible for such damage and all such claims must be  
made against the shipping company by the consignee); defects caused by normal wear of the product  
(expendable parts are typically connectors, cables, potentiometers, switches and similar components);  
damage or defects caused by abuse, neglect, accident, failure to connect or operate the unit in any way  
that does not comply with applicable technical or safety regulations, or improper repair, excessive heat  
or humidity, alteration or unreasonable use of the unit, causing cracks, broken cases/housings or parts;  
damage caused by leaking batteries; finish or appearance items; items damaged in shipment en route to  
Nady Systems, Inc. for repair. The warranty is null and void if any Nady serial number has been removed  
or defaced.  
How To Obtain Service:  
1) If factory service is required, you must contact our Service Department at (510) 652-2411 for a  
return authorization (RA) number. Make sure the RA number is clearly marked on the outside of your  
package. (Please note: if an RA number is not included, our shipping department cannot accept your  
package.)  
2) Send the unit back to Nady Systems, 6701 Shellmound Street, Emeryville, CA, 94608, freight pre-paid.  
You must include proof of date and place of purchase (i.e., photocopy of your bill of sale) or Nady cannot  
be responsible for repair or replacement. Nady Systems, Inc. will not repair, nor be held responsible, for any  
units returned without proper identification, return address, and RA number clearly marked on the package.  
3) Per the above, Nady will perform all warranty service and return the unit to you at no charge. Nady  
Systems will inform the buyer if product sent in does not meet the terms of this warranty and will provide a  
quote for fixing the unit and/or shipping it back exclusively at the buyers expense.  
23  
 
Consumer Alert  
Most users do not need a license to operate this wireless micro-  
phone system. Nevertheless, operating this microphone system  
without a license is subject to certain restrictions: the system may  
not cause harmful interference; it must operate at a low power  
level (not in excess of 50mW); and it has noprotection from inter-  
ference received from any other device. Purchasers should also be  
aware that the FCC is currently evaluating use of wireless micro-  
phone systems, and these rules are subject to change.  
For more information, call the FCC at 1-888-CALL-FCC  
(TTY: 1-888-TELL-FCC) or visit  
NADY SYSTEMS, INC.  
6701 Shellmound Street • Emeryville, CA 94608 USA  
Tel: 510/652-2411 • Fax: 510/652-5075  
 

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