The only drawback is that you will need a pigtail or adapter to connect RG6 coax to your Dongle:
F-female to MCX-male for generic DVB-T
F-female to SMA-male for Flightaware ProStick.
Tweaked a little bit further.
1.Red line is starting point.
2.Green is after i put the antenna a bit higer
3.Grey is even higher but a different antenna (has some rust on it)
4. Yellow Maybe 10 cm higher than 3, same antenna like in 1 and 2. And i fixed the antenna only with cable ties, in 3 i uses a metal Plate with a clamp.