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TIPS FOR GETTING THE BEST PERFORMANCE
� Maintain a line-of-sight between the transmitter and receiver antennas. � Keep the receiver and antennas away from large metal objects. � Avoid placing the receiver near computers or other RF generating equipment. � Point the antennas straight up. � Avoid placing the receiver in the bottom of an equipment rack unless the antennas are remotely located. � Use the proper receiver antennas. 1/4-wave antennas can be used if mounted directly on the receiver or front mounted on the rack ears using the WA503 Front Mount Conversion Kit; 1/2-wave or other ground-plane-dependent antennas must be used if antennas are remotely located.
SPECIFICATIONS
RF Carrier Frequency Range 169.445 to 221.350 MHz Working Range 100 m (approximately 300 ft) under typical conditions. Audio Frequency Response 50 to 15,000 Hz, ±2 dB. Audio Output Level (±15 kHz deviation, 1 kHz tone) XLR connector (into 600 � load): �20 dBV (mic) 1/ inch connector (into 3 k� load) �8.8 dBV (Hi Z) 4� : 1/ inch connector (into 3 k� load) �18dBV (mix) 4 : Gain Adjustment Range LX1: 40 dB LX2: 25 dB Impedances LX1 (input): 1 M� LX88-II (output): 600 � (XLR); 5 k� (1/4-inch phone jack) RF Power Output LX1, LX2: 50 mW maximum (complies with FCC and IC regulations) RF Sensitivity �101 dBm, typical 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 tip of high impedance 1/4-inch output. System Distortion (ref. ±15 kHz deviation, 1 kHz modulation) 0.7% Power Requirements LX1, LX2: 9V alkaline battery (Duracell MN1604 recommended). 8.4V Nicad (rechargeable) are optional but not recommended. LX88-II: 12 Vdc (PS20, 120Vac; PS20E, 230 Vac Power Supply) Current Drain LX1: 31 mA average (40 mA max), LX2: 30 mA average (35 mA max) LX88-II: 160 mA average (195 mA max) Operating Temperature Range -20° to 50° C (-4° to 122° F). NOTE: Battery characteristics may limit this range. Overall Dimensions LX1: 82.6 mm H x 63.5 mm W x 26.2 mm D (31/4 x 21/2 x 11/32 in.) LX2/58: 241 mm L x 50.8 mm Dia. (91/2 x 2 in.) LX88-II: 44 mm H x 349 mm W x 194mm D (1 3/4 x 13 3/4 x 7 5/8 in) Net Weight LX1: 79.5 g (2.8 oz) without battery LX2/58: 294.8 g (10.4 oz) without battery LX88-II: 1.7 Kg (3.7 lbs) Certification LX1, LX2: Type-accepted under FCC Parts 90 and 74; IC certified under TRC-78 15
TROUBLESHOOTING
Some common problems and their solutions are identified in the table below. If you are unable to solve a problem, contact your dealer.
Problem No sound; RF light(s) not glowing. Solution � Make sure the transmitter and receiver POWER switches are ON. � Check battery. � Check receiver squelch setting. � Check receiver antenna connection(s). � Make sure antennas are in line of sight of transmitter. No sound; RF and Audio Level � Turn up receiver audio VOLUME control. meter lights glowing. � Check for proper connection between receiver and karaoke unit. � Talk into microphone and observe receiver audio level lights. If they glow, the problem is elsewhere in the sound system. Received signal is noisy or con- � Check battery. tains extraneous sounds with � Remove local sources of RF interference. transmitter on. � If using a guitar or other instrument, check connections. � Two transmitters may be operating on the same frequency. Locate and turn one off. � Signal may be too weak. Reposition antennas. If possible, move them closer to transmitter. Noise from receiver with trans- � Adjust receiver squelch control. mitter off. � Remove local sources of RF interference. � Reposition receiver or antennas. Momentary loss of sound as � Reposition receiver and perform another transmitter is moved around per�walkthrough� test and observe the RF forming area. indicators. If audio dropouts persist, mark these �dead spots� in performing area and avoid them during performance.
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