That's the point 1700/2100
It's both, not either or
They always go together
The New xlte data is dual band full duplex
There is no phone, No amp that uses one of the two
Every Time that band is in use , BOTH frequencies are being utilized
One is transmit, one is receive, the amplifier had to utilize both, because the phone is using both
I can explain it to you.
But I Can Not understand it for you !
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