[Milsurplus] BC-1000: more facts

[Hue Miller]

These quotes from ELECTRONICS, June 1945:

"The nominal range of the set is a conservative three miles. Extreme
conditions can be found where the communications distance  is less
than nominal and other conditions where the range will be far greater.
In tests, the sets have been used for communications over 40 miles
of salt water and fifteen miles over land. In one case, communications
was established over three and one half miles of fresh water, with
one of the sets submerged in water with only 2/3 of the antenna 
above the surface. 

"The range of communication established by the SCR-300 with the
nominal one-half to three-quarter watt output is possible only by
the careful design of the receiver to a sensitivity which permits the
use of signal fields less than a microvolt per meter. Referred to a low
impedance signal generator input, the receiver provides a 20 db noise
reduction, with an input of 0.5 microvolt.

"The weight....of the complete station with large battery is 38.23 lb.
[ Wow! ] Power input to the receiver is 2.25 watts from the B 
battery and 1.35 watts from the A battery. When transmitting,
the respective power inputs are 9 watts and 2.25 watts."

[ Hmmm....that overall efficiency does not seem that great: one
half watt of RF for 11 watts total input. However, it did work
pretty well, and certainly none of the Axis radios could come 
close. ]    ( via: Hue Miller )