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NO

Their is a difference from DC ground and RF ground.

 Delta loop is suppose to be 1 wavelength on whatever band you are building it for.

should present an impedance of roughly 100 ohm, depending on where your feed point is.

 So yes one side is connected to center of SO 239 other side is connected to ground. side of SO 239. A  lot of info on delta loops online just search for it.

 Decent antennas with some gain, but do not believe all the hype, you still need get the antenna 1/2 wl AGL for decent performance