Nady Systems U-800 Bedienungsanleitung

U-800

UHF 800-Channel Wireless System

OWNER’S MANUAL

CONTENTS

1. INTRODUCTION

2. USING THIS MANUAL

This booklet provides instructions for the operation of the U-800 and includes a

description of features, a quick user controls guide, a step-by-step guide to operations

for each unit, system speciﬁcations, a troubleshooting guide, miscellaneous tips, and

servicing information.

1. INTRODUCTION................................................................................2

2. USING THIS MANUAL .......................................................................2

3. SYSTEM FEATURES ............................................................................3

4. QUICK USER CONTROLS GUIDE........................................................4

5. SYSTEM OPERATION .........................................................................8

6. SELECTING GROUP/CHANNEL, IR PROGRAMMING

AND SIMULTANEOUS MULTICHANNEL OPERATION ........................14

7. CAUTIONS AND TROUBLESHOOTING.............................................17

8. MISCELLANEOUS TIPS .....................................................................18

9. SPECIFICATIONS .............................................................................19

10. FREQUENCY PLAN ........................................................................20

11. FREQUENCY LISTS.........................................................................21

12. OPTIONAL ACCESSORIES .............................................................22

13. SERVICE INFORMATION................................................................22

14. ONE YEAR LIMITED WARRANTY ....................................................23

Thank you for choosing the Nady U-800 wireless system, and congratulations on

your choice. The U-800 has the best performance and price value in professional

UHF wireless, offering clear-channel, frequency-agile operation on the UHF band for

interference-free performance in any application or locale. The U-800 delivers 800

user-selectable, frequency synthesized channels in the US frequency band 470MHz-

490MHz. The Nady U-800 offers built-in Autoscan for quick and convenient open

channel selection and set up of one system, or many wireless systems at the same

location for simultaneous multichannel operation. The U-800 features proprietary

companding and low-noise circuitry for an industry-best 120dB dynamic range, and

the clearest, most natural sound available in wireless today

U-800 RECEIVER



range operation, up to 500 ft. (line-of-sight)

 

selection

 

transmitter via IR sender for easy frequency synchronization

 

same location

 

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.

 

 

 

transmitter ON/OFF switching

 

 

status, RF/AF level, Mute (squelch) level, and push On/Off power switch

 



 

or dual receivers (side-by-side) optional rack mounting

 

 



UH-800 HANDHELD MIC TRANSMITTER



 



 

receiver’s selected channel

 

 



 

 

UB-800 BODYPACK INSTRUMENT TRANSMITTER



 

selected channel

 

 

 

 

 

for mic or instrument cable

3. SYSTEM FEATURES

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

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



17. DOWN BUTTON to change the receiver MUTE level down, GRP/CH down by

one step at a time

18. MENU BUTTON

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 receiver’s selected channel to the transmitter. Position



IR window, press the MENU button once and wait ﬁve second, the receiver will

4. QUICK USER CONTROLS GUIDE



11 10 12

SCAN and IR automatically for the open channel. The IR INDICATOR will ﬂash

for 2 seconds. If the IR data download is successful, the receiver’s 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”

19. UNBALANCED LINE OUT ¼” JACK 

with Volume control

20. DC INPUT JACK

(DC22VDC/400mA)

21. VOLUME CONTROL Selects desired output volume level for the Unbalanced

Line Out

22. BALANCED MIC OUT XLR JACK

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

side-by-side for dual rack mounting

27. ERM-22 DUAL RACK KIT optional rack ears for rack mounting two

receivers side by side



19 20 21 22



28. MIC BALL/ ANTENNA windscreen also functions as antenna, so for best

operating range do not handle this antenna during use

29. BATTERY COVER unscrew CCW to open battery tube to insert batteries

30. AUDIO INPUT LEVEL normally set at middle position, turn knob with small

ﬂat head screw driver for optimum sound

31. TWO AA BATTERIES operating from two AA batteries

32. BATTERY COMPARTMENT holds two AA alkaline or NiMH batteries,

observe correct polarity

33. POWER ON LED indicates the transmitter ON (green)

34. LOW BATTERY LED indicates the batteries are weak (red)

35. RF POWER slide the switch to power the transmitter ON or OFF

36. AUDIO MUTE slide the switch to ON or OFF to mute audio with transmitter

powered on

37. IR RECEPTOR SENSOR/WINDOW infrared LED sensor for linking the

transmitter to the receiver during IR selected frequency downloads

OFF ON

33 34

37 32



38. ANTENNA 

39. INPUT JACK 



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

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 



49. HEADMIC™ 



50. LAVALIER MIC



39 40 41 42

43 44

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



menu will cycle through the following screens.v

During manual programming, press the MENU BUTTON (18) to conﬁrm the selec-



after 5 sec.

Rack Mounting the Receiver



by-side with another U-800 receiver.

 SIDE MOUNT CLIP (24) from each side of

the receiver (as shown) and slide in the optional ERM-12 RACK EARS (25).

 SIDE MOUNT CLIPS (24)

EJC-3 JOINING CLIP

(26) and attach the ERM-22 RACK EARS (27) as shown.





adequate airﬂow and heat dissipation in any rack conﬁguration.)

5. SYSTEM OPERATION

Powering the Receiver

Plug the AC/DC ADAPTER (23) provided into the DC INPUT JACK (20)



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

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



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



for the minimum RF squelch setting at which the RF INDICATOR (8) will remain on

-

pated in use for your application. However, in areas of high RF activity, the squelch



receiver’s signal RF INDICATOR (8) or the diversity A or B INDICATOR (9) ﬂickers



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-



squelch) setting will also yield a quieter mute function, which might be desired in





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.

SYSTEM OPERATION

Audio Level and Peak LED Indicator

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



UNBALANCED LINE OUT (19) BALANCED MIC

OUT XLR JACK (22)VOLUME

CONTROL (21).









(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.)





ampliﬁer and control the audio levels from there.





drawing for the audio cable/connector wiring.

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.

F-XLR

Pin 2: +

1/4” Plug

SLEEVE TIP

Pin 1: Ground

Tip = signal (+)

Sleeve = ground

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