Summary

Constant trouble tone on the master station. All other functions work normally, but trouble tone is always sounding.

Cause

Break in the wire to NHR-SP or no jumper in CN-104.

Solution

Check wire connection to NHR-SP. If no duty station is used, then make sure that there is a jumper in CN-104 on NHX-80X.

(No jumper on CN104 if Duty Station is included. INSTALL jumper if there is no Duty Station connected.)