Lectrosonics UCR511 - Manual (Page 23)

UHF Wireless Digital Hybrid TM Receiver
long. UHF helical antennas may be shorter, but are often less
efficient.
No RF Signal Make certain frequency switches on transmitter match the
receiver frequency setting.
Check battery in transmitter
AUDIO SIGNAL QUALITY
Poor signal to noise ratio Transmitter gain set too low
The noise may not be in the wireless system. Turn the transmitter
audio gain all the way down and see if the noise remains. If the
noise remains, then turn the power off at the transmitter and see
if it remains. If the noise is still present, then the problem is not
in the transmitter.
If noise is still present when the transmitter is turned off, try
lowering the audio output level on the UCR511 and see if the
noise lowers correspondingly. If the noise remains, the problem
is not in the receiver.
Receiver output is too low for the input of the device it is feeding.
Try increasing the output level of the UCR511 and lowering the
input gain on the device the UCR511 is feeding.
Distortion
Transmitter input gain too high. Check and/or readjust input gain on
transmitter according to the LEDs on the transmitter and then
verify the setting with the audio meter in the main window.
Audio output level too high for the device the UCR511 is feeding.
Lower the output level of the UCR511.
Bad frequency response or generally
poor audio quality.
Ensure the receiver is set to the compatibility mode that matches
the transmitter in use.
Rio Rancho, NM – USA 23