a problem in one mw link, it is NEC dmr3000s,

#Kuwait
Hello to all my colleges,  thank you all for your kind support, I like to share with you the latest results we got for this problem... Since beginning the interference is the most suspected cause of this,  so I again checked but this time by using another TRP's with new frequency.. Then we got a visible interfered RSL ,  for the old frequency it was causing signal distortion only without visible interference signal... The final conclusion is there is interference signal with a frequency value in between the two frequencies we used........thank you all.... And my deep thanks to the useful page administrator

#Kuwait,   #Telecom_Experts
We have a problem in one mw link,  it is NEC dmr3000s,  one station has no alarm,  the opposite station has ( section high BER& out of frame &excessive BER B1,B2) on modem unit and STM-1 interface unit, the TRP has no alarm and the RSL is normal in both sites
Can any one has experience with this NEC equipment advice us what could be the problem?
Thank you

#هندسة_الاتصالات
#Microwave