Shure MC (774–782 MHZ) User Guide
UHF Wireless System
USER’S GUI DE SUPP LE MENT MC (774–782 MHZ)
CONTENTS
SPECIFICATIONS 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Furnished Accessories 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Accessories 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement Parts 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FREQUENCY SELECTION GUIDE 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compatibility Groups 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Master List (Groups A1–A4) 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2002, Shure Incorporated
27B8586 (BA)
Printed in U.S.A.
SPECIFICATIONS
RF Carrier Frequency Range
774–782 MHz
Working Range
152.4 m (500 ft), minimum, under typical conditions; 487.6 m (1600 ft ) line of sight
NOTE: Actual working range depends on RF signal absorption, reflection and
interfer ence
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
>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
System Distortion (ref. ±45 kHz deviation, 1 kHz modulation)
0.3% Total Harmonic Distortion typical
Power Requirements
U1, U2: 1.5V AA al kali ne bat tery (Duracell MN1500 recommended); Nicad optional
U4: 90 to 230 Vac , 50/60 Hz
Power Consumption: 9.6 W min., 13.2 W max. (U4S)
12 W min.,16 W max. (U4D)
15 W min., 16 W max. (UA840)
Battery Life (Typical)
12 hours (with Duracell MN1500 1.5V AA alkaline battery)
Operating Temperature Range
-20° to 50° C (-4° to 122° F) NOTE: Battery characteristics may limit this range
–107 dBm
12 dB SINAD
–102 dBm
30 dB SINAD
1
/4-inch output
2
Overall Dimensions
U1: 92.2 mm L x 64.7 mm W x 24.2 mm D (3–29/32 x 2–35/64 x 61/64 in.)
U2/58:254 mm L x 50.8 mm Dia. (10 x 2 in.)
U2/BETA 58: 254 mm L x 53.2 mm Dia. (10 x 2–3/32 in.)
U2/87:228.6 mm x 49.2 mm Dia. (9 x 1–15/16 in.)
U2/BETA 87: 216 mm L x 50.8 mm Dia. (8–1/2 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: 375.6 g (13.2 oz.) without battery
U2/87, U2/BETA 87: 303.1 g (10.7 oz) without battery
U4S: 3.30 kg (7.27 lbs)
U4D: 3.85 kg (8.48 lbs)
Certification
U1, U2: BAPT Type Approved to FTZ 17TR 2019 and BAPT 122 R1; EMC
Approved to ETS 300 445.
U4S, U4D: VDE Certified to EN 60 950. BAPT Type Approved to FTZ 17TR 2019
and BAPT 122 R1; EMC Approved to ETS 300 445. Meets Low Voltage
Directive.
UHF Type Approved and EMC Approved systems are eligible to carry the CE
marking.
U1 Transmitter Input (Figure 1)
Connector:
Input Configuration:
Actual Impedance:
Maximum Input Level:
4-Pin Female Miniature Connector TA4F or
LEMO connector (optional)
Unbalanced, active
18 kΩ with lavalier microphone
1 MΩ with instrument cable
6 Vp–p (+7 dBV) for 1 % THD at minimum gain
setting using 1 kHz signal.
Pin 1: Tied to Ground
4-Pin Female miniature
Connector T A4F Pin
Assignments:
Pin 4: Tied thru 20kΩ Resistor to Ground.
Pin 2: Tied to +5 V
Pin 3: Tied to Audio
(On instrument adapter cable, Pin 4 floats)
Pin 1: Tied to Pin 3 and 10 kΩ to Ground
LEMO Connector
Pin Assignments:
Pin 2: +5V
Pin 3: Tied to Pin 1
Pin 4: Tied to Shield (Ground for Posit ive Bias)
Voltage for Remote Power:
+5 V supplied to microphone cartridge
U1 Transmitter Output
Connector:
Actual Impedance:
Nominal Output Level:
Maximum Output Level:
Pin Assignments:
SMC
50 Ω
+10 dBm
+11 dBm
Shell = Ground
Center = Signal
3
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.
MICROPHONE
ELEMENT
2
2
4
4
3
3
1
NOTE: LAVALIER MIC TIES PINS 3 AND 4 TOGETHER; GUITAR CABLE DOES NOT.
U1L (LEMO 4 PIN) MIC JACK BOARD
1
2
3
4
499 Ω
10K Ω
1
499 Ω
U1 MIC JACK BOARD
500 Ω
500 Ω
27 pF
AUDIO
27 pF
BIAS
27 pF
SHIELD
FIGURE 1
U2 Transmitter Output
Connector:
Actual Impedance:
Nominal Output Level:
Maximum Output Level:
Pin Assignments:
SMC
50 Ω
+10 dBm
+11 dBm
Shell = Ground
Center = Signal
20K Ω
27 pF
+5 V
AUDIO
GROUND
4
Loading...