Best RF splitter for 868 MHz, 4x 8dBi panel antennas, low loss, equal cable lengths?

Hello I'm from Greece. I am planning To install 4 directional panel 8dbi antennas 868 mhz on a tower all connected on one hotspot for lorawan coverage.My question is about a splitter that all antennas will connect on it and than go with one ccable to the hotspot.I need to have really low loss on splitting otherwise the antennas will loose too much dbi.Also all the cables from the antennas to splitter must have the same length?That includes the one cable from the splitter to the hotspot?where to look for it ?And what shall i must give extra attention on a installation like this?
The antenna is that one https://interline.pl/antennas/PANEL-8-HELIUM-SL?pdf=1

Hi.
It is normal that the signal is divided by 4.
I can give you some site:

https://www.markimicrowave.com/power-dividers...OaWyUFQPzoKGYqhyibTfcpDYqK4kBejxoC4GQQAvD_BwE

https://www.wimo.com/it/18041-868

Regards
Giovanni

It is generally recommended to use a low-loss splitter for your application to minimize signal loss. You can find low-loss splitters at electronics stores or online retailers.

In order to maintain good signal integrity, it is important to keep the cable lengths between the antennas and the splitter as equal as possible. This will help to minimize signal loss due to mismatched impedance. It is also important to use high-quality coaxial cables with low loss characteristics to minimize signal loss over the length of the cables.

In terms of the installation itself, it is important to ensure that the antennas are properly aligned and positioned for optimal coverage. You should also ensure that the cables are properly secured and protected from physical damage.

I hope this helps! Let me know if you have any other questions.