Ideally running the same on the quad and googles would be best.
Pagoda on both would work best if they are both RH polarized.
A dipole and pagoda will work. Just not as well as two matching antennas.
Yeah you will need to use the same type of antenna on both the quad and your goggles. Doesn’t matter if they are different antennas, but what matters is that both antennas are have the same lh/rh circular polarization. As you can’t use a rhcp antenna with a lhcp antenna.
What most people do if they have a diversity reciever is use a patch and pagoda style antenna to get good coverage overall and longer range in the direction of the patch antenna
The duck and helical antennas seem to have the same structure, just duck is long and thin while helical is short and wide. In the following screenshot the internals of the two are side by side.
Could someone please explains how, having the same structure, one is directional and other is omnidirectional.