19
LX Wireless System
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 mi-
crophone element.
Audio Output Level (+15 kHz deviation, 1 kHz tone)
XLR connector (into 600
W load): 0 dBV (line), –20 dBV (mic)
1/4-inch connector (into 3 kW load)
:
–8.8 dBV
Gain Adjustment Range
LX1: 40 dB
LX2: 25 dB
Impedances
LX1 (input): 1 M
W
LX3 (output): 3 kW (1/4-inch phone jack)
LX4 (output): 150
W (XLR); 3 kW (1/4-inch phone jack)
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 mV 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 out-
put and the tip of the high impedance 1/4-inch output.
System Distortion (ref. +15 kHz deviation, 1 kHz modulation)
0.3% THD typical
Power Requirements
LX1, LX2: 9V alkaline battery; 8.4V Nicad optional
LX3, LX4: 12.5–18 Vdc (negative ground), 400 mA
Battery Life
18 to 20 hours
Operating Temperature Range
–20° to 50° C (–45 to 122° F). NOTE: Battery characteristics may limit this range.
