Troubleshooting – Alto Professional Radius 200 User Manual
Page 11

11
Troubleshooting
Problem Solution
The receiver does not 
produce any sound. 
Make sure the receiver’s power adapter is properly 
connected to the power input and a power source. 
Make sure the transmitter’s batteries are properly inserted 
and that their polarities (+ and –) are correct. 
Make sure the transmitter and receiver are set to the same 
frequency. 
Make sure the receiver’s audio output is properly connected 
to your mixer, amplifier system, etc. 
Make sure the receiver and transmitter are within 328 feet 
(100 meters) and have a clear line of sight. Also, make sure 
the receiver is not immediately near any metal objects or 
devices that could cause RF interference (other wireless 
systems, TVs, radio, etc.). 
Lower the setting of the receiver’s Squelch knob.
There is audible interference 
in the transmission. 
Make sure the receiver and transmitter are within 328 feet 
(100 meters) and have a clear line of sight. Also, make sure 
the receiver is not immediately near any metal objects or 
devices that could cause RF interference (other wireless 
systems, TVs, radio, etc.). 
Make sure the receiver’s antennae are properly attached to 
its antenna terminals. 
If you are using multiple transmitter-receiver pairs, make sure 
the pairs are not using the same or adjacent frequencies. 
The signal is distorted.
Make sure the receiver is not immediately near any metal 
objects or devices that could cause RF interference (other 
wireless systems, TVs, radio, etc.). 
Lower the setting of the receiver’s Volume knob.
