Hello,
1. Could someone explain to me how the Mikrotik LHG R antenna https://mikrotik.com/product/rblhgr which has a gain of 21dBi LTE differs from those antennas in sets, e.g. LHGGM&EG18-EA or ATLGM&EG18-EA which according to the specification have only maximum gain 17dBi. What makes this first model with higher dBi gain? The structures look the same.
2. I also do not understand why the LHGGM&EG18-EA 2x2 MIMO model is more expensive than the ATLGM&EG18-EA 4x4 MIMO model? Are there any additional nuances that affect the price?