Hi Pedro,
You can bypass the crystal in the receiver front end by a 103 or 104 cap to check out if your NE602 is working okay. It is true that the receiver sensitivity is not as high as the big radios, about 10 dB delta.
Thanks,
toggle quoted message
Show quoted text
在 2020年3月17日，上午6:58，Dr. Pedro E. Colla (LU7DID) <
lu7did@...> 写道：
Hi,
My D4D after working very smoothly for several months turned deaf recently, it does work but only signals extremely strong are received.
Any clue or test to perform to start with?
73 de Pedro, LU7DID
