Shure J4 User Manual
CONTENTS
SPECIFICATIONS 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FURNISHED ACCESSORIES 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPTIONAL ACCESSORIES 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACEMENT PARTS 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UHF WIRELESS SYSTEM COMPATIBILITY GUIDE 7. . . . . . . . . . . . . . . . . .
USER GUIDE SUPPLEMENT
J4 (554-584 MHz)
UHF WIRELESS SYSTEM
27C8788 (CD)
E2003, Shure Incorporated
Printed in U.S.A.
2
SPECIFICATIONS
RF Carrier Frequency Range
554–584 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
Dynamic Range
>110 dB, A-weighted
RF Sensitivity (Typical)
U4S U4D
–110 dBm
12 dB SINAD
–107 dBm
12 dB SINAD
–105 dBm
30 dB SINAD
–102 dBm
30 dB SINAD
Image Rejection
100 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: Two (2) 1.5V AA alkaline batteries recommended; Nicad batteries 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.
UA845US: 15 W min. per unit typical, 62 W max. when used with 4 UC4’s and 4
UA830WB line amplifiers
Battery Life (Typical)
U1, U2: 12 hours (with Duracell MN1500 1.5V AA alkaline battery)
Operating Temperature Range
-7° to 49° C NOTE: Battery characteristics may limit this range
3
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 87A, U2/BETA 87C: 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 87A, U2/BETA 87C: 303.1 g without battery
U4S: 3.30 kg
U4D: 3.85 kg
Certification
U1,U2: Type Accepted under FCC Part 74. FCC ID DD4U1J4 and DD4U2J4. Certified
by IC in Canada under RSS-123 and RSS-102
U4S, U4D: UL and cUL Listed to UL 6500, 2 nd. Edition and CAN/CSA E60065-00.
Approved under the Declaration of Conformity provision of FCC Part 15; Certified by
IC in Canada under RSS-123 & ICES-003. VDE Certified to EN 60065, 6th Edition.
UHF Type Approved and EMC Approved systems. Meet the requirements of
300.422-1,-2 and 301 489 Parts 1 and 9 and are eligible to carry the CE marking.
O682
FCC Statement
The U4 Receiver complies with Part 15 of the FCC rules. Operation is subject to the
following two conditions: (1) this device may 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 (Figure 1A, 1B, 1C)
Connector:
4-Pin Male Miniature Connector (TA4M) 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) using 1 kHz signal for 1% THD at
minimum gain setting with –6 dB pad
4-Pin Male Miniature Connector
TA4M Pin Assignments:
Pin 1: Tied to Ground
Pin 2: Tied to +5 V
Pin 3: Tied to Audio
Pin 4: Tied thru 20kΩ Resistor to Ground.
(On instrument adapter cable, Pin 4 floats),
see Figure 1B
LEMO Connector
Pin Assignments:
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),
see Figure 1C
Voltage for Remote Power: +5 V supplied to microphone cartridge
4
27 pF
20K Ω
27 pF
+5 V
AUDIO
GROUND
U1 MIC JACK BOARD
2
1
4
500 Ω
500 Ω
MICROPHONE
ELEMENT
3
2
1
3
4
NOTE: LAVALIER MIC TIES PINS 3 AND 4
TOGETHER; GUITAR CABLE DOES NOT.
27 pF
499 Ω
499 Ω
3
27 pF
10K Ω
AUDIO
SHIELD
(LEMO 4 PIN) MIC JACK BOARD
1
4
2
BIAS
Fig. 1A
Fig. 1B
Fig. 1C
U1 Transmitter Output
Antenna Impedance: 50 Ω
Nominal Output Level: +10 dBm
Maximum Output Level: +13.5 dBm
U2 Transmitter Input
Input Configuration:
Wireless microphone element
Actual Impedance:
20 kΩ
Maximum Input Level: 3 Vp–p (0.5 dBV) using 1 kHz signal for 1% THD at minimum
gain setting without pad.
U2 Transmitter Output
Connector: SMC (Internal)
Pin Assignments:
Shell = Ground
Center = Signal
Antenna Impedance: 50 Ω
Nominal Output Level: +10 dBm
Maximum Output Level: +13.5 dBm
Loading...