@Bader-bsn This is the antenna: https://poynting.tech/antennas/xpol-2-5g/ I got it from a local shop. Make sure you get the "v3". It is the latest and most advanced version of it.

@delong91 So I just received and tried the poynting XPOL 2x2 5g V3 antenna. Indeed there is a big difference in signal streangth. Just for reference, my SNR before connecting the antenna was about...

@Bader-bsn Thank you for your reply. I can understand that the system may choose the band that has stronger signal. But this should be done only when it is in auto mode. When I select and lock the...

@delong91 Fyi, I ordered the same antenna (Poynting XPOL 2 V3). As soon as I get it I will run some tests and let you know. Again, many thanks for your help.

@delong91 I don't want to cell lock because the pci of N78 changes during the day(s). I sometimes get connected to n78 with pci 406 and others with pci 73. If I cell lock, some times per day I lose...

@delong91 Thanks for your reply. So ok at least the adapters I got are the same as yours. Imagine that without external antennas the x50-5g connects automatically to N78 bands. The signal is low but...