Some several years ago when propagation was good, on one night (about 0300
Z) we had global communications on twenty metres.

I fired up my Quadra amplifier, with good QSK, wound the speed of my keyer
up to about 90 words per minute, and sent individual dots.

I was able to hear my own signal on its returning from the round globe trip!

David


-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Steve Forst
Sent: 08 March 2007 21:15
To: [log in to unmask]
Subject: Re: question about a radio phenomenome?

Ed,

That's a good point and since it's been over  a dozen years since I read the

book, it wouldn't surprise me if I forgot or misremembered some important 
part of the story.

Thinking about it now 2 things come into my mind.  Even though radio waves 
travel at the speed of light in free space, there is  a slight slowdown in 
air.  Maybe that doesn't amount to much, but perhaps more importantly, if he

used short waves it would have required  a number of hops to circle the 
earth.  Each hop should add  some tiny fraction of a second to the total 
time from tx to rx.  Depending on what frequency he used and what layer of 
the ionesphere  it was bouncing off, and how many hops were needed,  that 
may add some time to  the trip.

Anyway, that's my story and I'm sticking to it.

73, Steve KW3A


----- Original Message ----- 
From: "Ed Malmgren" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, March 08, 2007 12:38 PM
Subject: Re: question about a radio phenomenome?


>I wonder how Armstrong could hear the signal coming around the earth 
>because
> it should make the trip about seven times a second which would be hard to
> measure back in those days I would think.  Ed K7UC
>
>
>

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