Monday, February 15, 2016

Mini Quad Build > FPV VTX Antenna Solder

Easiest way to remove coaxial connector from VTX is to hacksaw the tabs and lead of the connector at the PCB and careful not to cut into the PCB too much.
Desoldering wick and desoldering pump did not work well, as there are four soldered ground tabs and these tabs cannot be simultaneously desoldered at once.

Coaxial connector removed on the cloverleaf antenna end and soldered to front of VTX.  The cable shield are split to two grounds on front.  The center coaxial core is carefully soldered to the signal tab.

A piece of desolder wick served as braid wire is used to make a ground brace for the back of VTX connection. 
Thus all four ground pads are used on the PCB.

The brace on the back of VTX serves as extra structure to hold the cantilevered cloverleaf antenna.



Saved ~5g by removing the coaxial connectors!



VTX mounts on back of quad with foam pads cushioning the carbon frame edges.






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