The bandwidth efficiency of an M-ary FSK signal ________ with ________ in M.
(a) Constant, increase
(b) Increases, increase
(c) Decreases, increase
(d) Decreases, decrease
The question was posed to me in unit test.
The above asked question is from Combined Linear and Constant Envelope Modulation Techniques topic in division Modulation Techniques for Mobile Radio of Wireless/Mobile