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doug_life | 4 months ago

It is likely that that the sub had it's antenna tuned to work well in water while the RC car antenna was tuned for open air. The two different mediums will change the antenna impedance.

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ge96|4 months ago

Interesting does say shorter antenna, I could see that, I think the RC sub's antenna was like 4in long vs. an rc car's antenna that's usually like a foot

iancmceachern|4 months ago

Yeah, my basic understanding of submarine communications is that lower frequencies penetrate the water better. Lower wavelength needs a longer antenna. The system US subs use is a very low frequency from what I understand.