NS SD60's

Hi from England, can any give me information about or a good cab roof shot of a NS SD60 as to where to place the two “can” antenna’s.
I have several pictures but its hard to figure out where they should be, should they be diagnally across with one under the engineer and the other just above the conductors rear window, or are they placed else where.
The Proto 2000 cab drill plate isnt very helpful and i’m stuck[:)]

These might help:

http://www.trainweb.org/zeniphotos/roofer/NS6594.jpg
http://www.railpictures.net/viewphoto.php?id=52611