[SADXA] First Demonstration of Radio by Marconi Dec. 12th, 1896

MikeZW0LTL at aol.com MikeZW0LTL at aol.com
Tue Dec 13 01:54:33 EST 2016


Nice!
73
Mike
W0LTL
 
 
In a message dated 12/12/2016 10:29:06 P.M. Pacific Standard Time,  
ted at teddowning.com writes:

A great  answer, Bill. Merry 12 December.

Ted w7key
> On Dec 12, 2016, at  5:29 PM, W7EXG (Bill) <W7EXG at q.com> wrote:
> 
> Hi Ted,  
> 
> In the spirit of your DX spot questions, here is my  response. 
> 
> On another December 12, but in year 1901, Marconi  succeeded in sending 
the
> first radio transmission (estimated at  850kHz) 2000 miles across the
> Atlantic Ocean, from England to  Newfoundland. This disproved detractors 
who
> told him that the  curvature of the earth would limit transmission to 200
> miles or less.  
> 
> His message was Morse-code signal letter "S"
>  
> Thus December 12 is actually a GREAT DAY for Amateur Radio, since it  was 
on
> this DAY in 1901, when "some type" of ionospheric reflection  was proven,
> suggesting world wide DX was possible. 
> 
>  Fortunately the FCC was not involved yet, so no call Sign was  required.
> However, rumor has it, that Marconi's WANTED TO HAVE the  first amateur 
radio
> call, so his 1 by call was -- S. In that context,  Marconi WAS the 1st
> Amateur Radio Operator, and 1st DXer on Dec. 12,  1901.  This is an 
amazing
> 1st. 
> 
> Since 2000 mi at  850kHz clearly was a nighttime propagation, the 
propagation
> reflection  was off the F layer. 
> 
> However, the transmitting system  consisted of a dipole, driven by an
> induction coil and a spark gap.  
> 
> I am guessing that the spark gap still radiated energy at  frequencies way
> ABOVE the MUF at the time, and some of that high  frequency energy escaped
> into space -- and is still out there.  
> 
> If the universe is curved with a circumference of 115 Light  Years to THIS
> DATE, I suggest listing tonight on 20m or higher  frequencies, about
> midnight, for ...   ...    ...  ...
> 
> But, be sure your using one of those whiz-bang  SDR receivers with a noise
> floor below absolute temperature. 
>  
> My DX Spot for Dec 12, IS NOT FOR TODAY, BUT mainly FOR TONIGHT, so  you
> still have a chance at this rare DX event!!
> 
> If  you hear radio Station with call sign S, give him a call. 
> 
>  Might be hard to get a confirmation, but you might check LOTW anyway.  It
> will take awhile for S to hear your call and get it in the LOTW  data 
base,
> however. 
> 
> Be wary of bogus "S" stations..  who may be pretending to be "S". This is
> always an issue for us DXers.  
> 
> Pile-ups.. well YES!. Since I just put S on the DX Cluster  forecast for
> tonight, I suspect the pile-ups might be intense.  
> 
> Good luck and good DX! And Mainly ... Have Fun!! 
>  
> 73s, 
> 
> Bill W7EXG
> 
> -----Original  Message-----
> From: SADXA [mailto:sadxa-bounces at mailman.qth.net] On  Behalf Of Theodore
> DOWNING
> Sent: Monday, December 12, 2016  8:48 AM
> To: Southern AZ DX Association E-Mail Reflector
>  Subject: Re: [SADXA] First Demonstration of Radio by Marconi Dec. 12th,  
1896
> 
> Now that's a DX spot for sure!  Was it today? Darn  it,  What call sign? 
What
> frequency? I doubt there will be a pile  up.  :-)
> 
> Ted 
> w7key
>> On Dec 12, 2016,  at 8:28 AM, W7EXG (Bill) <W7EXG at q.com> wrote:
>> 
>>  Dec. 12, 1896: 
>> 
>> First demonstration of the radio:  
>> Marconi demonstrates his radio set to the public, today --   on Dec. 12th
> in
>> 1896
>> 
>>  73s,
>> 
>> Bill W7EXG
>> 
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