That's definately not the design intention.
You are probably confusing BB salience with detection capability.
The TA will detect contacts at MUCH greater range, however, once contacts have been detected on both arrays, the Sphere will show much clearer BB tracks.
This models the real world operation of these arrays: the sphere is designed to pick up BB contacts and display them clearly, and the TA is designed to pick up low frequency NB signals, and as such, the BB display is not as clear as for the sphere.
Create a test scenario with a supertanker at 50nm, 30nm, 15nm, and 5nm. The performance differences between the arrays will be made very clear.
Cheers,
David
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LW

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