[Lowfer] how strong would half wave dipole be?

[Bill Ashlock]

Art,
 
Interesting idea, but are you talking about part 5 or part 15 transmissions on 185K? Part 15 regs would not allow this under any interpretation of the "50ft max antenna length" requirement. Also there would certainly be FAA regs to content with, as a half wave antenna (approx 2900ft long at 185K) would represent a danger to aircraft.
 
Bill> Date: Fri, 11 Jan 2008 23:30:19 -0500> From: KY1K at verizon.net> To: lowfer at mailman.qth.net> Subject: [Lowfer] how strong would half wave dipole be?> > Hi everyone,> > I recently became interested in ballooning, and began to wonder about > launching a 1 watt transmitter with a half wave dipole antenna. I > have located a free helium source and a surplus balloon.> > With small diameter wire (for light weight), how far could I be heard > on 185 KHz if the antenna was oriented vertically, and flying between > 20K and 100 K feet above sea level?> > Would the QRS signal be readable in the entire USA, or would be range > be much lower?> > Has anyone ever heard of others trying this?> > Art> > > > > > _______________________________________________> >From the Lowfer mailing list> Send messages to: Lowfer at mailman.qth.net> To sub/unsub visit: http://mailman.qth.net/mailman/listinfo/lowfer