[OKDXA] Interesting propagation question
Rick
K9KK at atlinkwifi.com
Tue Feb 28 14:30:46 EST 2017
KIM
Very well said !!!!!
I totally agree with you.
And, As you say-----
"Sometimes it's good to be part of a statistically significant outlier. "
I believe that I may have experienced this same phenomena.
But never gave it much thought at the time.
Most likely because I was just too excited and happy to make the contact.
73 Rick K9KK
On 2/27/2017 9:55 PM, Kim Elmore wrote:
> Keep in mind that propagation programs are based pretty much on
> statistical models -- I once met the guy that wrote VOACAP. Odd things
> can happen that are in the "tails" of the probability distribution and
> so have a very low -- but not zero! -- probability of occurring.
> Sometimes, it's good to be part of a statistically significant outlier!
>
> 73,
>
> Kim N5OP
>
>
> On 2/27/2017 8:28 PM, Rick wrote:
>> Forgot to mention that it does show a 1-25% probability at 1900UTC
>> and earlier.
>> So, I would imagine that there might be an even lower probability at
>> 2200 ?????
>> It does not mention the prop mode.
>>
>> On 2/27/2017 4:49 PM, John Geiger wrote:
>>> This afternoon at 2200Z I worked OH0Z from Aland Islands on 15 CW.
>>> That
>>> should be 11pm local for them, several hours after sunset. He was
>>> putting
>>> in a great signal, S5 or so, but no other EU stations where heard at
>>> all.
>>> I am sure his Northerly location played a part.
>>>
>>> What propagation mechanism was likely at play? I am guessing it had
>>> to be
>>> more than just F2 as it was several hours into darkness for OH0, and
>>> the
>>> MUF should have been below 21mhz at that time local. Could it be an
>>> Auroral-Es to F2 link? Any other ideas as to the type of propagation?
>>>
>>> 73 John AF5CC
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