[Spooks] HM01 response to kc2ttk at gmail.com and "Token" <T_O_K_E_N_ at hotmail.com>

[Matt Johnson]

This is the biggest PIA (pain-in-the-a**) of communicating on HF. I'm
researching methods such as 'ham radio based' [1]ALE and computerized
predictions and [2]maps to figure out what band to use when. In this
age of crazy over communication, it's too frustrating for me to just
'dial around.'

----- Original message -----
From: Zack Widup <w9sz.zack at gmail.com>
To: Shortwave Spy Numbers Stations <spooks at mailman.qth.net>
Subject: {SPAM 02.3} Re: [Spooks] HM01 response to kc2ttk at gmail.com and
"Token" <T_O_K_E_N_ at hotmail.com>
Date: Sat, 18 Jan 2014 10:58:18 -0600

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Yes, solar conditions can take effect within minutes. This is very
noticeable during ham radio contests. I was operating in the 20-meter
amateur band in a contest once and the band was open, full of signals.
Within minutes the band went completely dead - not one signal was
heard. (No, it wasn't the end of the contest!) I looked out the window
to see if my antennas had come down. They hadn't. I checked the other
bands and they were all also dead. In about two hours the bands were
back.

73, Zack W9SZ


On 1/18/14, john <johnmb at nc.rr.com> wrote:
> Visit http://mailman.qth.net/mailman/listinfo/spooks to unsubscribe
from
> this list
>
> At 09:33 PM 1/17/2014, shawn fahrer wrote:
>>Does propagation change THAT MUCH in 24 hours to have a signal go
from S9
>>to virtually zero in your part of the world from one day to the next
>>(assuming no change at the transmitting end)?
>
> I remain open minded on the general subject at hand , but this part I
can
> contribute to.
>
> Yes, propagation will change that much or more in even a smaller time
> chunks. Minutes to minute is not uncommon . particularly at those
> frequencies at those hours.
>
> That doesn't for a minute diminish the interesting discussion about
the
> content and behavior of numbers stations. Part of the unending
interest in
>
> these is that very few people actually *know* the answers to the
questions
> we discuss.
>
> John
>
>
>
>
> III
>
>
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References

1. http://en.wikipedia.org/wiki/Automatic_link_establishment
2. http://www.dxatlas.com/DxAtlas/IonoMaps.asp