Nady Systems OCTAVO U-81 Owner's Manual - Cautions and Troubleshooting
CAUTIONS AND TROUBLESHOOTING
10. No Audio
If you are not getting audio through the U-81 OCTAVO system, slide the transmitter
POWER or MUTE (STDBY) switch to ON, carefully check all connection and system
setup. Check or replace transmitter battery. Check that the receiver is powered.
The receiver and transmitter must be set to operate on the same RF channel.
11. Audio Distorted or Unwanted Sound
Remove or turn off nearby RF sources (such as other wireless system, CB radio,
CD player, computer, digital effect, ect...) Check or replace transmitter battery.
12. Feedback
Observe care in selecting P.A. volume, transmitter location and speaker placement so
that the acoustic feedback (howling and screeching) will be avoided. Please also note
the pickup pattern characteristics of the microphone selected. Omnidirectional mics
pick up sound equally from all direction, and are prone to feedback if not used carefully.
Unidirectional mics are more resistant to feedback. However, pick up sound source
best that are directly in front of the mic. In addition, mics that are farther from the sound
source, such as lavalier, required more acoustic gain and thus are also more prone to
feed back than close-source mics such as handheld or headworn models that are used
close to the mouth.
13. RF Interference
If you encounter receiving interference (from other than an operating TV station),
often it can be checked by turning off each transmitter at a time to find the source of
causing interferences. Please note that wireless frequencies are shared with other radio
services. According to FCC 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 be cease operation or change frequencies. The above statement is valid only for
use in the U.S.A.
14. Signal Loss
Reposition the receiver and perform walk-thought test. If audio dropouts persist, locate
“dead” spots and avoid them during performance. Check receiver MUTE level setting.
Check or replace transmitter battery.
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