Frequency range on TX1 stock blade antennas

I am looking to add LTE support to my TX1 and i’ve noticed a lot of the “blade” type of antennas have a super broad frequency range so as the question states, what is the frequency range on the stock tx1/tx2 antennas?

They look similar to these LTE antennas which range from 700Mhz all the way up to 2600Mhz:

Hi, please check the wireless compliance guide: