Is it possible for a host running Gazell library to receive RF waves from a device which uses some other method(not Gazell) to transmit RF waves?

[nordicdev]

Is it possible for a nRF51822 device running a Gazell stack (as host) to be able to receive RF waves from another device which is not running a Gazel stack? If yes, then what are the steps needed to make both of them to communicate? Thanks.

[run_ar]

Not sure I understand what you are after. Can you please elaborate on what it is you want to do?
While it is possible for the nRF51822 to receive RF waves from another device, you will have to run the same protocol on the other device for them to be able to communicate. e.g. it's possible to run ANT and BLE concurrently (time multiplexed), but you need to have both protocols running on the chip...