[Discuss-gnuradio] hi all, can I use one RX receive a wideband signal and then seperate it to many narrowband signals

Hi all, I need to receive many narrowband signals, but usrp hard ware only provide 4 RX,
so I need to receive more than one narrowband signals per RX. Is my idea possible?
I dont want to use more than one usrp to achieve that, anyway which will be an
option if my first idea can't work.