XGN is a member of 3gpp, the standards for 5G everything.
Band 108 is a Reality
3gpp sets the worldwide standards for the 5G protocol. Unless a “band” is listed in the standards, it simply does not exist.
On Friday, September 29th, 2023, 3gpp officially published the standard for “Band 108.” In short, Band 108 is receive only (Broadcast) from 470 MHz to 698 MHz. This includes all broadcast UHF channels in the US and most other countries. Band 107 is a subset of Band 108 for use by various countries. Other sub-sets are being proposed.
The details can be found here: 3gpp BAND 108 and go to version 18.3.0
Sub-Bands for Band 108
New sub-bands, for Band 108, LTE based 5G terrestrial broadcast for early deployments were approved during the 3GPP’s Dec 2024 Meeting#106 in Madrid