[Milsurplus] WW2 "Plane recon on 800 band" ?????

[Hue Miller]

WW2 aviation radio afficionados, here's an interesting puzzle to chew
on:

"Mile's [ US Navy in China ] communications center assisted many
submarines in locating and destroying Japanese shipping. A case
in point is the USS Boarfish. That vessel's first patrol report, which
covers the period December 1944 to Feb. 15, 194 5, states ' On 
January 13 at 10:00 PM, Boarfish guarding Radio Chungking
[ capital of the non-communist anti-Japanese resistance ] at set 
hours, wolfpack fequency and China plane reconnaissance on 800
band, when possible....
"......The Japanese attempted to jam NKN ( Radio Chungking ), but
with the exeption of one or two skeds, attempts were unsuccessful,
due to NKN's signal strength which doubled that of the enemy"

( Japanese Navy station presumably Shanghai. )

Now, "China plane recon on 800 band". That cannot be Mcs.
Sounds like meters  - the old way of describing the marine 
500 kcs. frequency was "the 600 band".  800 meters  works out to 
something like 370 kcs.  Pretty close to the lower limit of such A/C
rigs as GO, GP, BC-375.  Chungking's freqs had to be HF, as subs at 
ddistance communicated directly with that base, and the sub wolfpack
freq, i wager also HF, or MF/ low HF.
Dunno why LF (if i'm right) was desirable. #1, wanted to eliminate
skywave propagation????  #2 wanted to provide a reference point
to home on, via DF? But that would allow the Japanese to home in
also - maybe the Japanese air forces were much reduced as threat 
by then.
You figure it out. When solved, more to come.
(from "The Army-Navy Game", Roy Stratton, 1977 )
-Hue Miller