Will you listen to ... (call sign(s)) on ... kHz (or MHz)? [AP13]
Will you listen to ... (call sign(s)) on ... kHz (or MHz), or in the bands ... / channels ... ? [AP14]
Answer
I am listening to ... (call sign(s)) on ... kHz (or MHz). [AP13]
I am listening to ... (call sign(s)) on ... kHz (or MHz), or in the bands ... / channels ... [AP14]