Ohhh wow so you already have the latest B818 and MR600, I’m on the old one I have B618 and Archer MR400 AC1350 Wireless Dual-Band 4G LTE but I used to get 28Mbps on both of them, right now under 3.5Mbps. MR400 being CAT4 no longer picks up signal, but currently I get a signal from far away tower(2.4Km) though I have some nearby, so I think MR400 used to pick up from the nearby towers but now fails to. I even had to cancel my Simcard last month so I’m off this month but yesterday I ordered a new one because I really miss unlimited connection. I just wanted a booster to get at least 12Mbps, I’m certain one tower can give me that consistently. I cry for your speeds I don’t wanna lie, but if I may ask you said those are speeds from when you went to the location of the towers, in your home how are the speeds looking?The numbers are good indeed.
I am not using an external antenna.
I have went to the tower locations and tested, max speed was 81mbps if I remember correctly.
Hence I do not foresee using an external antenna as it would just add about 20mbps to my current speed in the best case scenario.
In my humble opinion if possible you should go to your tower and check the max speeds you can get.
If the numbers are not much bigger than your current speeds then I would think an external antenna would not be needed.
The numbers are just from mostly 4x4 MIMO on band 41.
I have tested on a few devices and been very fortunate in terms of speeds.
The numbers and details are as follows:
Xiaomi Mi 8 30mbps-45mbps B41 4x4 MIMO, no CA
Samsung Galaxy S7 22-30mbps no 4X4 MIMO, CA B3+B38 assumed
TP-link MR6400 15-32mbps no 4x4 MIMO, no CA and band selection varies
TP-link MR600 25-40mbps no 4x4 MIMO, CA B3+B38
(Current device) Huawei B818 31-60mbps 4x4 MIMO B41/B38, no CA
Honestly with the B818, the speeds are very good. It only ever goes to the 30s range when other devices are connected as well.