It is well documented that USN aircraft carrier-borne were equipped with the ARR-1/ARR-2/ZB homing devices. Were the seaplanes like the OS2U Kingfisher carried by USN cruisers/battleships also equipped with it?
The guidance that approved installation - in aircraft carriers
- was issued in 1938. Here's the typical installation in an OS2U in
1940 (no ZB-* - at that point, at least):
On the other hand, the OS2U photos I took of the rear gunner/radio
operator position at the NASM Museum at Udvar-Hazy do show some
improvements. It was restored to its configuration in 1944, when it
was used on the USS Indianapolis. You can see the ZB-* tuning dial
just under the DU direction finder loop adapter for the RU receiver
directly beneath it.
The other half of your question would likely be answered by a photo
of the USS Indianapolis ca. 1944. The YE/YG antenna was normally
the highest one on the ship. But given the fact that cruisers
usually covered carriers, they might have use the carrier YE as the
target to return to the general vicinity of the Task Force. I'll
leave that as an exercise for the reader (I get seasick too
easily...)