That is likely to be highly directional (in all three-dimensional orientations) and very sensitive to location in the house in relation to the location of the mast. Both my 4G phones and my 5G one, and my Three router are. See all the discussions of how to improve reception using external antennae in this forum, and how tricky it is to optimise reception.
No doubt you already know about how moving or rotating kit by just a few centimetres/degrees can make a huge difference to normal wifi between router and computer or phone. The same applies to mobile data connections.
Upstairs is usually best, and on the same side of the house as the mast. How to check the connection stats, as in several posts in this thread
, on a Windows machine or the SIM in a Windows phone I don't know. All the signal analysers seem to be for Android or iOS, with Windows ones all looking to be about detecting attacks.
And Tim! Yikes! Completely unbranded? Plugged into your computer and software installed from it? Even a top class internet security suite won't know where it (its firmware) might talk to. As for the internal components quality, who knows!
Did you by any chance look at the seller's link on the right? Registered as a business seller on eBay in May (but has 12 months of weird ratings) and sells all sorts of stuff
. An address that shows in Google Maps as in the middle of the University of East London campus.
My broadband basic info/help site - www.robertos.me.uk.
Domains, sites and mail hosting - Tsohost
Connections: OnePlus 8 Pro max 165Mbps down, 24Mbps up on Three, and B311 4G, tbb tests normally 35-45Mpbs down, 65Mbps off-peak, 9-24 up.
To argue with mindless bigots is foolish.
Edited by RobertoS (Wed 23-Sep-20 01:40:13)