Umm, you do know that Adm Yamamoto was in the home waters on one of the
battleships ?
And that the "First Air Fleet" WAS the Pearl Harbor attack force.
So this aledged interecpts was of a transmision to NOT from the attack
force.

Yes,as I clearly stated in the post this message dated Nov,26 is from Yamamato
to First Air Fleet.

There are 2 seperate things in this story
1)Did US (or Brits,Dutch) break Japanase naval code JN25b before Pearl Harbor?
2)Did Task force break radio sience break radio silence between Nov.26 and Dec7
?

1)Naval code was surely broken on Nov,16(also before Task force left home
waters)but probably earlier.
2)Task Force did break radio silence at least 28 times.

lso, just where does that quote come from ?

From Crane IN,
Current position: Yes they decoded it but they were unable to translate it
because of shortage of personel.If you buy it.