[Milsurplus] BC-611 to external antenna

Hue Miller kargo_cult at msn.com
Sat Feb 17 02:31:20 EST 2007


>  In transmit mode.....Which is 800 - 850m mW for an efficiency of around 28%.  That's low for a 
> Class C amp but really not too bad considering the frightfully short antenna 
> and that the emission mode is A3 rather than A1.
> Robert Downs - Houston
 
Is this efficiency measured into a dummy load replicating characteristic of the very short  whip
antenna? If so- i assume it's because of the difficulty of loading a very low resistance load
with a small loading coil, and due to the extremes of match values needed. Actually, when you
consider the efficiency of the antenna also, probably in the very low single digit % points, the
actual radiated RF is probably a handful of milliwatts only.  Try that for the club show-and-tell.
I don't know if this is the least watts/ weight ratio, however. There are some other contenders.
There's that VHF transmitter, TDQ or whatever. Third Reich had a backpack rig along the 
electrical lines of our TBY ( Torn. FuD2 ), which was a 2-man load, and i mean 2 serious
loads, to operate while in motion. -Hue Miller


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