Here is how I go about replacing or adding a SMA connector to my antennas.

Amazon...................
RG316 SMA - http://amzn.to/2lGecSp
RG316 RP SMA - http://amzn.to/2n1Snx6
RG402 SMA - http://amzn.to/2n1VcOu
RG402 RP SMA - http://amzn.to/2nh9Qxz

Banggood ..................
RG316SMA - http://www.banggood.com/SMA-Male-50-1...
RG316 RP SMA - http://www.banggood.com/123-p-929721....

Ebay........................
RG316 SMA - https://rover.ebay.com/rover/1/711-53...
RG402 SMA - https://rover.ebay.com/rover/1/711-53...
RG402 RP SMA - https://rover.ebay.com/rover/1/711-53...

FPV playlist -    • FPV Playlist  
Repairs playlist -    • Repairs Playlist  

All my playlists -    / @projectbluefalcon  
Video editor - http://amzn.to/2n7sUiF
My personal vlog channel -    / jcofficial3