Topband: Topband Spotlight Propagation Theorem

[Herbert Schoenbohm]

Since I am not a scientist and only a steamboat engineer of sorts 
(that's what they call someone who works at the controls in a radio 
station playing music) I offer my own version of the TB Spotlight 
theorem.  TB spotlight propagation I equate to a unique  or magic closet 
where although there may be some light need the crack near the floor for 
stations closer by when the door is shut the room is dark. Things really 
happen when the door is even partially ajar.  As the door swings in the 
breeze the paths, often more than one of them, can come and go very 
rapidly. But the door has several hinges and where one side opens the 
other side which was previous opened may slam shut. Light arrives at 
different angles and behind the hinge there is little light at all.   
These hinges can be propagation-wise from the top of the door to the 
bottom and in reverse.....or side to side.... never illuminating the 
closet completely for everyone to bask in the bright glow of a 
"propagation"  light simultaneously. I know that this may seem foolish 
and over simplistic to some but this "spotlight" propagation is as weird 
as my  attempts to try to understand it. If you were not at one of the 
locations where the signals were refracted down to...other than checking 
what you have for best performance...it might me as good or better as 
the TBers 25-50miles away.  One thing that did appear as a valid 
conclusion is that the spotlight openings were reciprocal or enhance in 
both directions at a particular time. I say this because did not 
experience any spotlight impact from  NA stations.  In fact what was 
unusual was that rock crushing signals here were pass over for weaker 
signals here by VP8STI.  Sometimes much weaker signals n the same 
frequency got through first rather than the well endowed super stations.


Just an observation before you tear up your antenna(s) for TB and move 
to a cabin in the mountains.


Herb Schoenbohm, KV4FZ

On 1/23/2016 3:13 PM, Jim Brown wrote:
> On Fri,1/22/2016 1:08 PM, K1FZ-Bruce wrote:
>> Just my observations from what happened here last night in NY 
>> (doesn't help you west coast guys, I guess).
>
> You guess right, although topband "spotlight" propagation scattered a 
> handful of Qs west of the Rockies. Over our heads into the Pacific NW, 
> and WB6RSE made it from LAX. I've still not heard a peep.
>
> 73, Jim K9YC
> _________________
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