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Re: LF: Re: Good 136kHz conditions

To: "[email protected]" <[email protected]>
Subject: Re: LF: Re: Good 136kHz conditions
From: Laurence KL7 L <[email protected]>
Date: Sun, 18 Oct 2015 09:40:12 -0700
In-reply-to: <4EB1C17AE0E04E39A33D74379E7FEFF1@gnat>
References: <[email protected]> <489EF0DB16EA4CA4BAC4072D1A8A2112@gnat> <[email protected]> <4EB1C17AE0E04E39A33D74379E7FEFF1@gnat>
Reply-to: [email protected]
Sender: [email protected]
Yes - Aurora actually arced back into morning twilight before it was nixed by 
daylight

Looking forward to quieter times in the coming year or two Alan

Laurence
Seattle enroute Blightly



> On Oct 18, 2015, at 09:29, Alan Melia <[email protected]> wrote:
> 
> Hi Laurence yes I can imagine...... the impact was at around 0800z  The 
> bottom of the Dst was around 1500z. NOAA SEC shows the aurora right down to 
> the Alaskan coast.
> 
> Alan
> ----- Original Message ----- From: "Laurence KL7 L" 
> <[email protected]>
> To: <[email protected]>
> Sent: Sunday, October 18, 2015 5:12 PM
> Subject: Re: LF: Re: Good 136kHz conditions
> 
> 
> Wasnt a good night last night over here on 136/475 and visual Au seen pre 
> dawn as I flew down to Seattle
> 
> Laurence KL7L/AM
> 
> 
>> On Oct 18, 2015, at 05:56, Alan Melia <[email protected]> wrote:
>> 
>> Hi Mike it is interesting to see that your "Good Conditions" were just 
>> before a bout of geomagnetic activity :-))  The Dst was nothing special last 
>> night (-40nT) but it plunged to -80nT around noon today.  All the contacts 
>> you quote are around the 2000km max range so are one hop and the 
>> precipitated hot electrons did not appear until daylight, but it is possible 
>> these initially aided the Italian copy and your 2000km daylight paths. These 
>> will probably disappear later in the day.
>> 
>> At longer range Roelof reports good signals from Joe VO1NA up to two hours 
>> after ground sunrise.  This is a 2-hop path. This could have been due to 
>> precipitared electrons "filling" the morning dip on the 2nd hop but it was a 
>> little early for that.  There is also my belief that solar wind electrons 
>> may aid E-layer ionisation so mild activity may lead to better night-time 
>> conditions. My suspicion is that the paths will not be quite so good 
>> tonight....we shall see.  The geomagnetic activity does not seem too intense 
>> so will probably soon decay, and we will be back to "normal" again.
>> 
>> Alan
>> G3NYK
>> 
>> 
>> 
>> ----- Original Message ----- From: "Mike Dennison" 
>> <[email protected]>
>> To: <[email protected]>; <[email protected]>
>> Sent: Sunday, October 18, 2015 12:53 PM
>> Subject: LF: Good 136kHz conditions
>> 
>> 
>>> Good conditions and activity last night on the 136kHz band. My Op32
>>> transmission at midnight UTC last night produced reports from nine
>>> countries, including LA, SM, EW6, SV, SP and EA. I also received Op32
>>> from Russia and Italy.
>>> 
>>> This morning, my transmission at 1035UTC was reported by three
>>> stations around the 2000km mark. IS7SLZ is also readable.
>>> 
>>> A good time to dust off the LF gear.
>>> 
>>> Mike, G3XDV
>>> ==========
> 
> 


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