System Operation (Continued)
Setting Levels (Continued)
CAUTION! The small trimmer controls are delicate; use only the supplied screwdriver. Do not force the trimmers beyond their normal 180° range of rotation.
Return the screwdriver to its storage clip when not in use.
Figure H-Handheld Transmitter Interior View
Trim Control (Volume)
Channel
Selector
Switch
Screwdriver
ATW-T701 UniPak® Transmitter
Trim controls in the UniPak transmitter (Fig. I) will enable you to use microphones or instruments with different output levels.
1.For MIC: Set MIC (microphone trim) control fully clockwise (maximum) and INST (instrument trim) control fully counter clockwise (low).
For INSTRUMENT: Set INST (instrument trim) control fully clockwise (maximum) and MIC (microphone trim) control fully counterclockwise (low).
2.Set the receiver's AF Level control to its full clockwise position (maximum). (Fig. C on page 4).
3.Plug the mic or instrument into the transmitter and power up the system.
4.For MIC: Make an initial adjustment of the mixer's level controls that will allow audio through the system.
For INSTRUMENT: Make an initial adjustment of the instrument amplifier input level control that will allow audio through the system.
5.For MIC: While speaking/singing into the microphone at typically loud levels, check the AF peak indicator on the receiver. If AF peak indicator is easily illuminated and distortion is heard through the system, it may be necessary to adjust the transmitter audio input level. To adjust the transmitter audio input level, gently turn the microphone trim control counterclockwise until the AF peak indicator is illuminated only on audio peaks.
For INSTRUMENT: While playing the instrument at typically loud levels, check the AF peak indicator on the receiver. If AF peak indicator is easily illuminated and distortion is heard through the system, it may be necessary to adjust the transmitter audio input level. To adjust the transmitter audio input level, gently turn the instrument trim control
counterclockwise until the AF peak indicator is illuminated
6only on audio peaks.
6.For MIC: While again speaking/singing into the microphone at typically loud levels, adjust the mixer's input trim control so the highest sound pressure level going into the microphone causes no input overload in the mixer, and yet permits the mixer's channel and output level controls to operate in their “normal” range (not set too high or too low).
For INSTRUMENT: While again playing the instrument at typically loud levels, adjust the receiver's AF Level control so the highest signal level causes no input overload in the instrument amplifier and yet permits the amplifier's input level controls to operate in their “normal” range (not set too high or too low).
Note: If the mixer cannot be adjusted to operate in its normal range without distortion, adjust the receiver's AF Level Control (turn counterclockwise) until the mixer/amplifier is no longer overloaded.
Note: RF power may be set to high or low via the RF power select switch on the side of the UniPak transmitter. (Fig. I.) While the high setting normally provides maximum operating range, the low setting will help extend battery life. The low setting may also be preferred in
possibility of interference or overload.
Figure I-UniPak® Transmitter Side Views
InstrumentTrim |
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| RF Power |
Control (Volume) |
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| Select | |
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MicrophoneTrim | Switch |
Control (Volume) |
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| Transmitter |
| Door Catch |
RF Interference
Please note that wireless frequencies are shared with other radio services. According to Federal Communications Commission regulations, “Wireless microphone operations are unprotected from interference from other licensed operations in the band. If any interference is received by any Government or non Government operation, the wireless microphone must cease operation...” If you need assistance with operation or frequency selection, please contact your dealer or