https://www.u-blox.com/en/product/rcb-f9t-timing-board?legacy=Current#Product-Selection GNSS bands L1C/A, L2C, L1OF, L2OF, E1B/C, E5b, B1I, B2I alebo L1C/A, L5, L1OF, E1B/C, E5a, B1I, B1C, B2a ??