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	–107 dBm
12 dB SINAD	12 dB SINAD
–105 dBm	–102 dBm
30 dB SINAD	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	Printed in U.S.A.
	27D8670 (CC)

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:	4-Pin Female Miniature Connector (TA4F) or
		LEMO connector (optional)
	Input Configuration:	Unbalanced, active
	Actual Impedance:	18 kΩ with lavalier microphone
		1 MΩ with instrument cable
	Maximum Input Level:	6 Vp–p (+7 dBV) for 1% THD at minimum gain setting
		using 1 kHz signal.
	4-Pin Female Miniature	Pin 1: Tied to Ground
		Pin 2: Tied to +5 V
	Connector TA4F Pin	Pin 3: Tied to Audio
	Assignments:	Pin 4: Tied thru 20kΩ Resistor to Ground.
		(On instrument adapter cable, Pin 4 floats)
	LEMO Connector	Pin 1: Tied to Pin 3 and 10 kΩ to Ground
		Pin 2: +5V
	Pin Assignments:	Pin 3: Tied to Pin 1
		Pin 4: Tied to Shield (Ground for Positive Bias)
	Voltage for Remote Power:	+5 V supplied to microphone cartridge

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		U1/U1H MIC JACK BOARD
	ELEMENT
			500 Ω
	2	2
			27 pF
	4	4
			20K Ω
	3	3	500 Ω
			27 pF
	1	1

NOTE: LAVALIER MIC TIES PINS 3 AND 4

TOGETHER; GUITAR CABLE DOES NOT.

U1L (LEMO 4 PIN) MIC JACK BOARD

1	499 Ω	AUDIO
		27 pF
2	499 Ω	BIAS
	10K Ω	27 pF
3
4		SHIELD

+5 V

AUDIO

GROUND

	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
	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

3