Shure UHF-R User Manual download pdf (Page 7)

Shure UHF-R Wireless

Receiver Controls and Connectors

antenna A in

12.7V out

150mA

receiver outputs

lift

GND

line

mic

sync

RF Audio

A B

XX YYY-ZZZ MHz Navigate

ENTER

EXIT

OFF

push

Control

POWER

Monitor

Monitor Clip

push

antenna B in

12.7V out

150mA

4 5

6 7 8

10 11 1112 13 14 15 16 17 19

UR4S+

Wireless Receiver

with Audio Reference Conpanding



200Ω

balanced low Z

RF B out

RF A out

networking

ethernet

RJ-45

network

activity

 SYNC Infrared (IR) port. Transmits group, channel, and other

settings to a transmitter. See page 15.

 Squelch LEDs.

• Blue (On) = Transmitter signal detected

• Off = no signal or signal squelched because of poor reception

or no tonekey

NOTE: The receiver will not output audio unless at least one

blue LED is illuminated.

 RF LEDs. Indicate RF signal strength from the transmitter at

each antenna and diversity condition.

• Amber = normal

• Red = overload (greater than –25 dBm)

4 Audio LEDs. Indicate audio signal strength from transmitter.

• Green = signal present

• Yellow = normal peak

• Red = overload

To correct this level, adjust the transmitter gain.

5 Indicates the name and range of receiver frequency band.

 LCD Interface. Provides a convenient way to program the

receiver from the front panel (see detail on next page).

7 Monitor. 1/4” output jack and volume knob for headphones.

• Monitor Clip LED indicates headphone audio is clipping.

• Dual models: Push the knob to switch from receiver one to

receiver two.

 Power switch. Powers the unit on and off.

 AC mains power input, IEC connector. 100–240 Vac.

 AC mains power passthrough (unswitched). Use IEC

extension cables to connect up to five UR4+ receivers to a

single AC power source.

 Diversity antenna inputs A and B.

Note: Antenna inputs are DC biased. Use only antenna

combiners and accessories listed in page 19. Some types of

antenna splitters or other products may short the DC power

and damage the receiver.

 Mic/Line switch. Changes output level 30 dB (XLR output only).

 Electrically balanced XLR output jack

 Lift/GND switch. Lifts ground from Pin 1 of the XLR connector

(default = GND).

 Impedance balanced 1/4” output jack (200Ω)

 USB jack for computer interface.

 RJ-45 jack for Ethernet network interface. Accepts both regular

and “ruggedized” RJ-45 plugs.

 Temperature-activated fan ensures top performance in high

temperature environments. Clean fan screen as needed to

remove dust.

 The RF distribution ports pass the RF signal from one receiver to

the next, allowing a maximum of 10 receivers to share a single

pair of antennas.

Note: The diagram above represents the UR4S single channel receiver. The UR4D dual channel receiver is functionally identical to the UR4S, adding a

second LCD interface and set of output jacks for channel 2.

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Shure UHF-R User Manual Page 7

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