Shure ULX
Wireless Microphone System User Manual page 22

ULX2 Transmitter Input
Input Configuration:
Actual Impedance:
Maximum Input Level:
ULX2 Transmitter Output
Actual Impedance:
Nominal Output Level:
Maximum Output Level:
Pin Assignments:
ULXS4 and ULXP4 Receiver Input
Connector:
Connector Type:
Actual Impedance:
Nominal Input Level:
Maximum Input Level:
Pin Assignments:
Voltage for Remote Power:
ULXS4 and ULXP4 Receiver Output
Connector:
Output Configuration:
Actual Impedance:
Nominal Input Level:
Pin Assignments:
Voltage/Current/Phantom 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 volt-
age on pin 2 (with respect to pin 3 of low impedance output) and the tip of the high impedance
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
/ inch connector (into 3000 ohm load)
4
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 V for 12 dB SINAD (typical)
Image Rejection
80 dB typical
Spurious Rejection
75 dB typical
Ultimate Quieting (reference 38 kHz deviation)
>105 dB, A-weighted
System Distortion (reference 38 kHz deviation, 1 kHz modulation)
0.3% total harmonic distortion, typical
Unbalanced, active
10 Vp–p (12 dBV) for 1% THD at minimum gain setting using 1 kHz signal.
Antenna
–95 to –30 dBm
+6 dBm
(–20 dBm recommended)
Shell = Ground
Center = Signal
12 Vdc, 150 mA maximum
High Z Audio
Unbalanced (1/4 in.)
3 k
––
Tip = Hot
Ring/ Sleeve = Gnd
Yes
–2 dBV
:
22
20 k
50
20 mW
30 mW
Shell = Ground
Center = Signal
BNC
50
Low Z Audio*
Balanced (XLR)
22
––
1 = Ground
2 = Hot
3 = Cold
Yes
Power Input
IEC 320
––
15 Vdc
18 Vdc
IEC Standard
––
1
/ -inch output
4