Dear Robin,
Thank to help me introduce my experiment.
Actually I would like to set up a delicated FM band repeater system, thus usage of another RX for observation of a LOOPBACK FM band is quite effective, I think, as compared to a heavy spectrum analyzer.
So the deviation loopback experiment of FM band can tell me whether the received signals were truly retransmitted.
Regards,
-Jie
2015-1-4