Toa WT-770 Manuals

TOA PASSWORD ™ SERIES WIRELESS MICROPHONE SYSTEMS DESCRIPTION TOA’s Password Series is a VHF high-band wireless microphone system operable between 168mHz and 216mHz. The Password systems are uniquely suited for professional audio applications ranging from gymnasiums and houses of worship to classrooms, boardrooms, auditoriums, and live theater. All four systems in the Password Series are equipped with TOA’s proprietary double-squelch circuitry, consisting of a noise squelch and a tone-key circuit. The noise squelch automatically mutes signals at approximately 14dBµ ( 5µV) to prevent unwanted RF noise from being transmitted. The tone- key circuit is a high-frequency 32.768kHz side-band signal that is broadcast by the transmitter simultaneously with the audio signal. The receiver is designed to reject any RF Signal which does not have the tone-key present, especially when the transmitter is off. As a result, the receiver will not process any other audio signal which is nearby in frequency or location if the tone key is not present. WT-780 Single-Channel Receiver WT-770 Dual-channel Receiver Frame TOA’s Password Series also features a compander circuit which compresses the audio signal within the transmitter at a ratio of 2 : 1. The signal is then expanded at the same ratio by the receiver. This boosts the dynamic range to better than 90dB. The original audio signal is unaltered throughout the entire compression/expansion process. Four microphones are available with TOA’s Password Series. Each mic transmitter will operate continuously on a single AA battery for more than 12 hours. For enhanced speech applications, TOA offers the WM-270 hand-held electret condenser microphone. The WM-280 is a hand-held dynamic microphone for vocal use. The WM-290, which includes a Shure SM-58 head, is also a hand-held dynamic microphone. The WM-370 is a unidirectional lapel condenser microphone with a body pack transmitter. WA-641C (15W) with cassette PASSWORD™ SERIES MICROPHONES WM-270 Electret Condenser Microphone WM-280 Dynamic Microphone WM-290 Dynamic Mlcrophone Lapel Microphone There are four systems that comprise TOA’s Password Series. The 870 true diversity and 770 non-diversity wireless systems each consist of two-port modular receiver frames, which accept frequency-specific tuner modules. Occupying only a half-rack space, two receivers can be mounted side-by-side, yielding four frequencies in a single rack space. The modular design of both systems allow you to add or change frequencies in minutes. TOA’s 780 Scout is a single-channel, non-diversity wireless microphone system designed to deliver professional performance at an attractive price. Packaged in a compact case for placement flexibility, the Scout utilizes all the performance functions of TOA’s 770 non-diversity system. The Scout includes a built-in telescoping antenna and an externally mounted AC power supply. PASSWORD ™ SERIES RECEIVERS WT-870 Dual-channel Diversity Receiver Frame WTU-870 True Diversity Tuner Module The 600 series portable meeting amplifiers incorporate the Password System non-diversity wireless microphone into a compact, ruggedly portable PA system. The two models, WA-641 and WA-641C (with integrated cassette player), feature a 20-watt, two-way speaker/amplifier system, a wired low-impedance microphone input, an auxiliary input, and two non-diversity WTU-770 Non-diversity Tuner Module 600 SERIES PORTABLE MEETING AMPLIFIERS microphone receiver tuner module slots, along with a built-in telescoping antenna. F/or added versatility, the Password Series includes an antenna distributor, model WD-770, which splits the input from a single antenna or a pair of antennas into eight separate frequencies. Ideal for use in non-diversity or diversity applications, the WD-770 eliminates the need to provide additional antennas when more than two frequencies are used within a wireless system. With a single WD-770, one ANTENNA DISTRIBUTOR antenna can be utilized to manage up to eight non- diversity signals, while a pair of antennas working with two WD-770 units can supply WD-770 input for up to eight separate diversity frequencies.

WIRELESS TUNER OPERATING INSTRUCTIONS WT-770 Please follow the instructions in this manual to obtain the optimum results from this unit. We also recommend that you keep this manual handy for future reference. TOA Corporation