Shure UB (692–716 MHz) User Guide

USER GUIDE SUPPLEMENT

UB (692–716 MHz)

UHF WIRELESS SYSTEM

SPECIFICATIONS

RF Carrier Frequency Range

692–716 MHz

Working Range

U1, U2: 152.4 m, minimum, under typical conditions; 487.6 m line of sight

NOTE: Actual working range depends on RF signal absorption, reflection and interference

Audio Frequency Response

50 to 15,000 Hz, ±2 dB. NOTE: Overall system frequency response depends on the microphone

element

Gain Adjustment Range

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

Modulation

±45 kHz deviation compressor-expander system with pre-and de-emphasis

RF Power Output

U1, U2: 10 mW maximum
50 mW maximum

Dynamic Range

>102 dB, A-weighted

RF Sensitivity

U4S U4D

–110 dBm

12 dB SINAD

–105 dBm

30 dB SINAD

Image Rejection

90 dB typical

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

Power Requirements

U1, U2: 1.5V AA alkaline battery recommended; Nicad battery 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.
UA840: 15 W min., 16 W max.

Battery Life (Typical)

U1, U2: 12 hours (with Duracell MN1500 1.5V AA alkaline battery)

E2003, Shure Incorporated

27D8670 (CC)

–107 dBm

12 dB SINAD

–102 dBm

30 dB SINAD

Printed in U.S.A.

Operating Temperature Range

-20° to 50° C NOTE: Battery characteristics may limit this range

Overall Dimensions

U1: 92.2 mm L x 64.7 mm W x 24.2 mm D
U2/58:254 mm L x 50.8 mm Dia.
U2/BETA 58: 254 mm L x 53.2 mm Dia.
U2/87:228.6 mm x 49.2 mm Dia.
U2/BETA 87: 216 mm L x 50.8 mm Dia
U4S/U4D: 44.5 mm H x 482.6 mm W x 295.3 mm D

Net Weight

U1: 175.2 g without battery
U2/58, U2/BETA 58: 375.6 g without battery
U2/87, U2/BETA 87: 303.1 g without battery
U4S: 3.30 kg
U4D: 3.85 kg

Certification

U1, U2: Type Accepted under FCC Part 74. FCC ID DD4U1B and DD4U2B. Certified by IC in

Canada under TRC-78

U4S, U4D: UL and cUL Listed to UL 813 and CSA C22.2 No. 1. Approved under the

Declaration of Conformity provision of FCC Part 15; Certified by IC in Canada under
TRC-78. VDE Certified to EN 60 950.

UHF Type Approved and EMC Approved systems are eligible to carry the CE marking.

FCC Statement

The U4 Receiver complies with Part 15 of the FCC rules. Operation is subject to the following
two conditions: (1) this device does not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation.

Licensing Statement

A user license may be required for operation. Contact the communications authority in your
country for more information.

Modifications to Approved Equipment

Changes or modifications not expressly approved by Shure Incorporated could affect
compliance with telecommunications standards, thereby voiding the user’s authority to
operate this product.

U1 Transmitter Input

Connector:

Input Configuration: Unbalanced, active

Actual Impedance:

Maximum Input Level:

4-Pin Female Miniature

Connector TA4F Pin

Assignments:

LEMO Connector

Pin Assignments:

Voltage for Re mo te Power: +5 V supplied to microphone cartridge

4-Pin Female Miniature Connector (TA4F) or

6 Vp–p (+7 dBV) for 1% THD at minimum gain setting

Pin 4: Tied to Shield (Ground for Positive Bias)

LEMO connector (optional)

18 kΩ with lavalier microphone

1 MΩ with instrument cable

using 1 kHz signal.

Pin 1: Tied to Ground

Pin 2: Tied to +5 V

Pin 4: Tied thru 20kΩ Resistor to Ground.

(On instrument adapter cable, Pin 4 floats)

Pin 1: Tied to Pin 3 and 10 kΩ to Ground

Pin 3: Tied to Audio

Pin 2: +5V

Pin 3: Tied to Pin 1

2

U1 Transmitter Output (Figure 1)

Connector: SMC

Actual Impedance: 50 Ω

Nominal Output Level: +10 dBm

Maximum Output Level: +11 dBm

Pin Assignments: Shell = Ground

Center = Signal

MICROPHONE

ELEMENT

NOTE: LAVALIER MIC TIES PINS 3 AND 4
TOGETHER; GUITAR CABLE DOES NOT.

1

2

3

4

2

2

4

4

3

3

1

U1L (LEMO 4 PIN) MIC JACK BOARD

10K Ω

1

499 Ω

499 Ω

U1/U1H MIC JACK BOARD

500 Ω

27 pF

20K Ω

500 Ω

27 pF

AUDIO

27 pF

BIAS

27 pF

SHIELD

FIGURE 1

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

U2 Transmitter Output

Connector: SMC

Actual Impedance: 50 Ω

Nominal Output Level: +10 dBm

Maximum Output Level: +11 dBm

Pin Assignments: Shell = Ground

using 1 kHz signal.

Center = Signal

+5 V

AUDIO

GROUND

3