![7. CAUTIONS AND TROUBLESHOOTING](/images/new-backgrounds/13229/1322933x1.webp)
7. CAUTIONS AND TROUBLESHOOTING
Feedback
Avoid acoustic feedback (howling or screeching) by taking care in selecting PA volume, transmitter location and speaker placement.
Please also note the pickup pattern characteristics of the microphone selected. Unidirectional microphones are more resistant to feedback. However, they pick up sound sources best that are directly in front of the microphone. Also, mics that are farther from the sound source (such as a handheld) require more acoustic gain and thus are also more prone to feedback than
No or Low Audio
If you are not getting audio through the system, carefully
RF Interference and Finding Open Channels
The FCC mandates the following information be provided to all end users of this equipment:
Consumer Alert
Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50mW); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change.
For more information, call the FCC at
If you encounter slight receiving interference when the transmitter is far from the receiver (from other than an operating TV station on the same frequency), it can often be overcome by adjusting the receiver‘s MUTE LEVEL/SQUELCH
If receiving interference on a selected channel with the transmitter off, or if you en- counter interferences in operating multiple
17