Could radio jamming explain Sydney's silence?

Could Kormoran have jammed Sydney's radio once firing began?

Possibly, if Kormoran had suitable equipment. Sydney's own jamming is another proposed explanation, although later comments question how readily Morse could be jammed.

Enemy jamming would depend on Kormoran having suitable equipment. Sydney is described as having the stronger jamming capability, raising a separate possibility that her own jamming interfered with her transmissions. A later viewer points to the difficulty of jamming continuous-wave Morse. Neither mechanism is established as the cause of the missing signal.