Shure UHF Wireless System User Manual Supplement page 3

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, U1H: 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: 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.
*The U1H transmitter does not carry the same approvals as the U1 transmitter.
U1, U1H Transmitter Input
Connector:
Input Configuration:
Actual Impedance:
Maximum Input Level:
TA4F Tini "QG" Connector Pin
Assignments:
LEMO Connector
Pin Assignments:
Voltage for Remote Power:
U1, U1H Transmitter Output (Figure 1)
Connector:
Actual Impedance:
Nominal Output Level:
Maximum Output Level:
Pin Assignments:
Switchcraft TA4F Tini "QG" 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
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)
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)
+5 V supplied to microphone cartridge
+10 dBm (+17 dBm for U1H)
+11 dBm (+18 dBm for U1H)
Shell = Ground
Center = Signal
3
SMC
50 Ω