Spektrum Dx7s Radio Mod to retrofit a RP-SMA connector [Updated 28.01.19]Sebastian Pohl - 11. Juli 2018
By default the Spektrum DX7S transmitter comes with a built in antenna that can not be changed. If the antenna breaks you can only replace it with the same model. But there is a cheap and easy option to switch it out for an RP-SMA connector so you can easily try out different antennas without modifying the radio irreversibly.