Recommended antenna 868MHz

Hello,

I currently own a “Multitech Conduit” gateway with a basic antenna and short range (10-15m).

I would like to acquire an antenna (868MHz) with much more range but I can not find any with enough information.

What antenna would you recommend to me with a greater scope? For outdoor.

Thank you!

A post was merged into an existing topic: The BIG and SMALL ANTENNA topic part 1