Ditch Witch 150RT - Manual (Page 47)

Service - 46
150R/T Operator’s Manual
Self Test Error Messages
CMW
Self Test Error Messages
A receiver self test may return an error message for four reasons: low sensitivity, a failed channel, noise
present, or gain test failure.
Low Sensitivity
A low sensitivity message will always appear together with a “noise” screen. This could indicate a problem
with the antenna, or it could simply be the result of attempting to test in a noisy environment. Try the test
again later, preferably in a different location. If this problem persists, contact Product Support. A unit in this
condition will still be usable in many cases, but performance will not be optimal.
Noise Present
A noise present message appears with each low sensitivity message. If noise present appears by itself,
the signal received in the test was higher than expected. This is usually the result of noise in the area and
may not indicate a problem. The most likely cause of this message is a transmitter or beacon nearby.
Ensure that all beacons and transmitters are turned off and conduct the test again.
Gain Test Failed
A failed gain test message indicates a specific type of hardware failure. Like the other tests, it could result
if there is excessive noise in the area. If the message persists, contact Product Support.
Channel Failed
A failed channel test message indicates that no signal was received by that channel during the test. This
almost always indicates a hardware problem. Contact Product Support.
Receiver Error Messages
Shut Down Failed
A failed shut down message indicates a hardware problem. Remove batteries and contact Product
Support.