Specifications - Shure LX1 User Manual

SPECIFICATIONS

RF Carrier Frequency Range
169.445 to 240.000 MHz (available frequencies depend on the applicable regulations in the
country where the system is used)
Working Range
91 m (300 ft) under typical conditions. 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 micro-
phone element.
Audio Output Level (±15 kHz deviation, 1 kHz tone)
XLR connector (into 600 Ω load): 0 dBV (line), –20 dBV (mic)
1
/ inch connector (into 3 kΩ load)
4
Gain Adjustment Range
LX1: 40 dB
LX2: 25 dB
Impedances
LX1 (input): 1 MΩ
LX3 (output): 3 kΩ (
LX4 (output): 150 Ω (XLR); 3 kΩ (
Modulation
±15 kHz deviation compressor-expander system with pre- and de-emphasis
RF Power Output
LX1, LX2: 50 mW maximum (complies with FCC and IC regulations)
Dynamic Range
>102 dB, A-weighted
RF Sensitivity
0.45 µV for 12 dB SINAD (typical)
Image Rejection
80 dB typical
Spurious Rejection
75 dB typical
Ultimate Quieting (ref. 15 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. ±15 kHz deviation, 1 kHz modulation)
0.3% THD typical
Power Requirements
LX1, LX2: 9V alkaline battery (Duracell MN1604 recommended); 8.4V Nicad optional
LX3, LX4: 12.5 - 18 Vdc (negative ground), 400 mA
Battery Life
18 to 20 hours (with Duracell MN1604 9V alkaline battery)
Operating Temperature Range
-20° to 50° C (–4° to 122° F). NOTE: Battery characteristics may limit this range.
Overall Dimensions
LX1: 83 mm H x 64 mm W x 26 mm D (3
LX2/58, LX2/BETA 58: 241 mm L x 51 mm Dia. (9
LX2/87, LX2/BETA 87: 216 mm L x 51 mm Dia. (8
LX3, LX4: 43 mm H x 214 mm W x 183 mm D (1
–8.8 dBV
:
1
/ -inch phone jack)
4
1
/ -inch phone jack)
4
1
/ -inch output.
4
19
1 1 1
/ x 2 / x 1 / in.)
4 2 32
1
/ x 2 in.)
2
1
/ x 2 in.)
2
11 7
/ x 8 /
16 16
English
3
x 7 / in.)
16