This question sound familiar from only a couple of months ago. Wartime S-Boots had no masts - therefore no rigging. There were antenna cables attached by turnbuckles to the rear of the foreward 20 mm's safety rail, attached to the antennae either side of the bridge, and terminate, again with turnbuckles, to the safety rail of the mid-ship twin 20 mm. (or whichever weapon is placed at this location). The cables are hard to see in most photos, unless they are close-ups.
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