This is about how O2 dragged its feet for years over building a second LTE transmitter in the Karvina district (the only one was in Havirov-Bludovice, and even that one belonged to T-Mobile, with which O2 shares its network), and now, according to gsmweb.cz, it is putting the best and most powerful equipment it can in Cesky Tesin.
According to The page moved out and left no forwarding address. it really is the case:
I understood that O2 didn’t give a damn about LTE coverage here. They had 3G in place, and this is a fairly densely populated area, so they preferred to build LTE where there are mostly small villages.
But now they took my breath away by adding LTE on 2600 MHz in Tesin, the highest frequencies they are allowed to use here based on the CTU auctions. For many months you could count these sites on your fingers. As far as I know, Vodafone had one at its headquarters and one in Karlovy Vary, and the others were in a similar or worse position. This is LTE-A: by aggregating this band with other LTE frequencies, it can theoretically reach 350 Mb/s downlink, and 225 Mb/s on its own.
That said, what I’m writing here are just the most superficial basics, and I don’t understand it in depth. I expect there will be some catch, but I don’t have an O2 or T-M SIM card and don’t want one either. For the Czech Republic, the wiki lists only T-Mobile with LTE 2600 band 7, with a stated maximum speed of 150 Mb/s (cat 4), and the reason is a mystery to me.
I’m also writing this because a year ago I got Internet bez dratu from T-M, and the LTE transmitter 7 km away in Horni Tosanovice worked only upstairs, and even then miserably. VF ran steadily at around 15 Mb/s day and night, and today it’s around 30 Mb/s (after switching to the newly auctioned frequencies) – https://www.speedtest.net/result/a/2183307941 . https://gsmweb.cz/foto.php?op=eurotel&cid=7187&okres=KI