GWS UM-1 crystal lead is custom made 0.4mm ( 0.01575")
Pls make sure you got a right crystal! on your GWS R6N and R4P!!
GWS original UM-1 crystal lead is custom made 0.4mm ( 0.01575") at 10PPM Spec. Device was made in Japan by same reliable vendor of "F" Brand crystals.
Pls do not use cheap commercial grade crystal, it may cause crystal contact lost! Or too many frequency drift out of spec!
GWS crystal inside has customized with stronger holder to protect crystal damaged by shock of crash.
Do not use a wrong spec cheap substitude UM-1 crystal which come with 0.012" lead! That may cause improperly contact and lost control!
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