Shure manual ULX1 Transmitter Output, ULX2 Transmitter Input, ULX2 Transmitter Output

ULX1 Transmitter Output

Actual Impedance:	50 Ω
Nominal Output Level:	20 mW
Maximum Output Level:	30 mW
Pin Assignments:	Shell = Ground Center = Signal
ULX2 Transmitter Input
Input Configuration:	Unbalanced, active
Actual Impedance:	20 kΩ
Maximum Input Level:	10 Vp–p (12 dBV) for 1% THD at minimum gain setting using 1 kHz
	signal.
ULX2 Transmitter Output
Actual Impedance:	50 Ω
Nominal Output Level:	20 mW
Maximum Output Level:	30 mW
Pin Assignments:	Shell = Ground Center = Signal
ULXS4 and ULXP4 Receiver	Input
Connector:	Antenna	Power Input
Connector Type:	BNC	IEC 320
Actual Impedance:	50 Ω	––
Nominal Input Level:	–95 to –30 dBm	15 Vdc
Maximum Input Level:	+6 dBm (–20 dBm recommended)	18 Vdc
Pin Assignments:	Shell = Ground Center = Signal	IEC Standard
Voltage for Remote Power:	12 Vdc, 150 mA maximum	––
ULXS4 and ULXP4 Receiver	Output
Connector:	High Z Audio	Low Z Audio*
Output Configuration:	Unbalanced (1/4 in.)	Balanced (XLR)
Actual Impedance:	3 kΩ	22 Ω
Nominal Input Level:	––	––
Pin Assignments:	Tip = Hot Ring/ Sleeve = Gnd	1 = Ground
		2 = Hot
		3 = Cold
Voltage/Current/Phantom	Yes	Yes
Power Protection?
*Output Level: Microphone Level = Line Level – 20 dB

Transmitter 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

Transmitter Gain Adjustment Range

ULX1: 25 dB

ULX2: 25 dB

Receiver Audio Output Level (±38 kHz deviation, 1 kHz tone)

XLR connector (into 600 ohm load): +3.9 dBV (line), –17 dBV (mic)

1/4 inch connector (into 3000 ohm load): –2 dBV

Impedance

ULX1 (input): 1 Megohm ULXS4, ULXP4 (output): 50 ohms at line level; 2000 ohms at mic level

Modulation

±38 kHz deviation compressor-expander system with pre- and de-emphasis.

RF Power Output

ULX1, ULX2: 30 mW maximum

Dynamic Range

>100 dB, A-weighted

RF Sensitivity

1.26 μV for 12 dB SINAD (typical)

Image Rejection

80 dB typical

Spurious Rejection

75 dB typical

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