Shure UHF Specification Sheet

UHF Wireless System

SELECT

AUDIO

MARCADDIVERSITY

OUTPUT

HEADPHONES

PUSH

OFF

POWER

UHF

LEVEL

GROUP CHANNEL

MHz

SELECT

AUDIO

MARCADDIVERSITY

OUTPUT LEVEL

GROUP CHANNEL

MHz

Specification Sheet

UHF SERIES WIRELESS

Top wireless technology engineered for the most demanding touring environments and installations. UHF wireless systems offer unprecedented flexibility and versatility. Using multiple frequency bands, over 75* compatible systems can be used simultaneously. Individual frequency bands deliver up to 24 compatible systems per band. With multiple system operation and interchangeable components, UHF systems also offer a choice of Single or Dual Channel Diversity Receivers.

SYSTEM FEATURES

Shure UHF Wireless Systems offer many exceptional features, including:

• Menu Driven Display. User-programmable receiver display shows Group, Channel, Frequency, Name, Squelch level, and Locked/Unlocked status.

• Exclusive Shure MARCAD) Circuitry. MARCAD (Maximum Ratio Combining Audio Diversity) circuitry constantly monitors signals from both receiver sections and combines them in a single output signal. MARCAD provides superior reception and exceptional freedom from dropouts.

• Noise Squelch Circuitry. Analyzes signal quality instead of signal strength. This virtually eliminates the possibility of annoying noise bursts coming through your receiver.

• Dual RF Level Meters. The U4S and U4D receivers have two RF meters, one for each antenna. The dual meters indicate received signal strength at each antenna, and make it easier to identify and troubleshoot "dead spots".

• Audio Metering. Each receiver includes a seven-segment audio meter that lets you monitor audio level and helps optimize transmitter gain setting.

• Transmitter Display. Shows Group, Channel, Battery Power Level, and POWER LOCK ON/OFF* condition. Both displays are user programmable.

• Tone Key Squelch: Eliminates unwanted noise from entering system; eliminates popping noises when turning the transmitter on or off.

• Dual Receiver Option: Provides greater flexibility while conserving rack space.

• Preconfigured Group/Channel: Ensures frequency compatibility and simplifies system installation.

• Network Expansion Capability. U4S and U4D receivers have a 25-pin serial connector for future computer control and monitoring via an accessory interface box.

• DC/DC Converter: Ensures consistent audio and RF performance, even if battery voltages change.

U4S

MARCADDIVERSITY

GROUP CHANNEL

SELECT

AUDIO

U4D

PUSH

MHz

UHF

OFF

OUTPUT LEVEL

POWER

HEADPHONES

SPECIFICATIONS

RF Carrier Frequency Range

Working Range

NOTE: Actual working range depends on RF signal absorption, reflec-

tion and interference

Audio Frequency Response

NOTE: Overall system frequency response depends on the micropho ne

element

Gain Adjustment Range

Modulation

RF Power Output

Dynamic Range

554–862 MHz, depending on region

U1: 152.4 m (500 ft.) minimum, under typical conditions; 487.6 m (1600 ft.) line of sight

50–15,000 Hz, +2 dB.

U1: 0 to 40 dB U2: 0 to 26 dB

+10kHz to +100kHz deviation, depending on region; compressor-expander system with pre- and de-emphasis

U1, U2: 10 mW maximum

>102 dB or >110dB, depending on region; A-weighted

Image Rejection

90 dB typical

RF Sensitivity

U4S U4D

–110 dBm 12 dB SINAD

–105 dBm 30 dB SINAD

–107 dBm 12 dB SINAD

–102 dBm 30 dB SINAD

Spurious Rejection

75 dB typical

Ultimate Quieting (ref. 45 kHz deviation)

>100 dB, A-weighted

Audio Polarity

Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 with respect to pin 3 of low impedance output and the tip of the high impedance 1/4-inch output

System Distortion (ref. +45 kHz deviation, 1 kHz modulation)

0.3% Total Harmonic Distortion typical

UHF WIRELESS SYSTEM SPECIFICATION SHEET

Power Requirements

U1, U2: 1.5V AA alkaline battery; Nicad optional U4: 90 to 230 Vac, 50/60 Hz

Power Consumption

U4S: 9.6 W min., 13.2 W max. U4D: 12 W min.,16 W max.

Battery Life (Typical)

U1, U2: 12 hours

Operating Temperature Range

–20° to 50° C (–4° to 122° F)

NOTE: Battery characteristics may limit this range

Overall Dimensions

U1: 98.4 mm L x 64.7 mm W x 24.6 mm D (3-7/8 x 2-1/2 x 31/32 in.) U2/58:235 mm L x 50.8 mm Dia. (9.4 x 2 in.) U2/SM86: 228 mm L x 49 mm Dia. (9.12 x 2 in.) U2/BETA 58: 232 mm L x 53 mm Dia. (9.28 x 2.12 in.) U2/87:228 mm x 49 mm Dia. (9 x 1.96 in.) U2/BETA 87: 228 mm L x 50.8 mm Dia. (9.12 x 2 in.) U4S/U4D: 44.5 mm H x 482.6 mm W x 295.3 mm D (1-3/4 x 19 x 11-5/8 in.)

Net Weight

U1: 175.2 g (6.1 oz.) without battery U2/58, U2/BETA 58: 330 g (11.6 oz.) without battery U2/SM86: 332 g (11.7 oz.) without battery U2/87, U2/BETA 87: 339 g (12 oz) without battery U4S: 3.30 kg (7.27 lbs) U4D: 3.85 kg (8.48 lbs)

Certification

U1, U2: Type Accepted under FCC Parts 74. Certified by IC in Canada under TRC-78. U4S, U4D: UL and cUL Listed to UL 813 and CSA C22.2 No. 1. VDE Certified to EN 60 950. Approved under the Notification provision of FCC Part 15; Certified by IC in Canada under TRC-78.

Wiring

MICROPHONE

ELEMENT

LAVALIERMIC TIES PINS 3 AND 4

NOTE:

TOGETHER; GUITAR CABLE DOES NOT.

U1L (LEMO 4 PIN) MIC JACK BOARD

10K

U1 MIC JACK BOARD

500

27 pF

499

AUDIO

27 pF

499

BIAS

27 pF

SHIELD

+5 V

27 pF

20K

AUDIO

GROUND

U1 Transmitter Input (Figure 1)

Connector: 4-Pin female mini connector (TA4F) or

Input Configuration: Unbalanced, active Actual Impedance: 18 kΩ with lavalier microphone

Maximum Input Level: 6 Vp-p (+7 dBV) for 1% THD at minimum gain

(TA4F) Connector Pin Assignments:

LEMO Connector Pin Assignments:

Voltage for Remote Power: +5 V supplied to microphone cartridge

LEMO connector (optional)

1 MΩ with instrument cable

setting using 1 kHz signal. Pin 1: Tied to Ground

Pin 2: Tied to +5 V Pin 3: Tied to Audio Pin 4: Tied through 20kΩ Resistor to Ground. (On instrument adapter cable, Pin 4 floats)

Pin 1: Tied to Pin 3 and 10 kΩ to Ground Pin 2: +5V Pin 3: Tied to Pin 1 Pin 4: Tied to Shield (Ground for Positive Bias)

U1 Transmitter Output

Connector: SMC Actual Impedance: 50 Ω Nominal Output Level: +10 dBm Maximum Output Level: +11 dBm Pin Assignments: Shell = Ground

Center = Signal

U2 Transmitter Input

Input Configuration: Unbalanced, active Actual Impedance: 20 kΩ Maximum Input Level: 3 Vp-p (0.5 dBV) for 1% THD at

minimum gain setting using 1 kHz signal.

U2 Transmitter Output

Connector: SMC Actual Impedance: 50 Ω Nominal Output Level: +10 dBm Maximum Output Level: +11 dBm Pin Assignments: Shell = Ground

Center = Signal

U4S and U4D Receiver Input

Connector: Antenna Power Input Network

Connector Type: BNC IEC 25-Pin D Actual Impedance: 50 Ω -- Nominal Input

Level: Maximum Input

Level:

Pin Assignments: Shell = Ground

Voltage for Remote Power:

–95 to –30 dBm 90-230 VAC,

+6 dBm (–20 dBm recommended)

Center = Signal 12 Vdc, 150 mA

maximum

50/60 Hz 230 VAC, 50/60 Hz-

IEC Standard -

- 5V, 70 0 mA max.

Interface

CMOS Logic

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