Indoor vs Outdoor Antennas? 5G Fritzbox 6850 & Poynting XPOL with Telekom 5G SIM

5G penetrates poorly through house walls: Are the mini antennas of a 5G Fritzbox 6850 router sufficient in all cases? When does an external ROUND beam antenna Poynting XPOL-1-5G (or RICHT-Strahl-XPOL-2-5G) bring noticeably more? Do they have to be installed OUTDOOR, on the roof? Or is INDOOR, on the window, enough? We have measured seven cases:

00:00 Optimal Router Locations
01:41 Antenna design of the 5G Fritzbox router
04:37 Testing in the concrete chamber
06:06 Testing with Poynting XPOL – INDOOR
08:21 Testing with Poynting XPOL – OUTDOOR
12:12 Testing in front of the best 5G base station
13:06 Summary of all measurements
15:00 Price check
15:44 ALLNET for Resellers
16:28 All tests with Telekom 5G SIM
16:55 Alternative 5G-Routers: Cisco, CradlePoint, Lancom, MikroTik, Netgear, Teltonika, Zyxel