Topband: KH8

[m.r.c.]

Hi George

if you have the opportunity, a high angle receive antenna for the hours at and 
just after sunset may serve you well

a receiving dipole at 15 ft accounted for a large percentage of contacts during 
that period from XZ0A - unlikely you can do that but any horizontal dipole might 
serve, the typical semi and full beverages heard nothing.

on the other end, the path was invariably a skew path arriving from the 
southwest.

it has been proposed that the propagation is along the actual grey line, and not 
any normal great circle path.  This seems to occur during periods of high solar 
activity when the traditional paths are blocked by the polar Oval

this was consistent and repeatable

explanations vary, but the symptoms seem to match the greyline being treated 
like a duct, and the incoming signals near and after sunset were dumped out 
almost right over our heads

Signals from us were repeatedly heard best on southwest facing directional 
receive arrays east stateside.  for your longitude, it becomes possible that 
this same process might take your signal to Europe as the path plot looks 
somewhat similar, just shifted well east of our path stateside from XZ0A

good luck

Robin WA6CDR, XZ0A, VP6DX



----- Original Message ----- 
From: "GEORGE WALLNER" <aa7jv at atlanticbb.net>
To: "John Farrer" <farrerj at yahoo.com>; "John Farrer via Topband" 
<topband at contesting.com>; "Bill Weaver" <bweaver at weaver-net.net>
Sent: Tuesday, October 31, 2023 18:06
Subject: Re: Topband: Topband Digest, Vol 250, Issue 20


> John,
> Originally my inquiry was general, but it has now morphed into a European one, 
> as working EU seems to be the most challenging, and that is where the need 
> seems to be most acute.
>
> There will be some common darkness both at my SS (W-EU) and SR (E-EU), but 
> signals to N. and central EU will have to go right over the pole. EA and G 
> will have a slightly better path at my SS.
> There will be lots of time for NA and SA (and Asia if there will be demand).
> GL and 73,
> George,
> AA7JV
>
> On Tue, 31 Oct 2023 23:48:04 +0000 John Farrer via Topband  wrote:
>>Hi George
>>Is your question aimed at North Americans or the all of us? I’m sure it’s at 
>>least that rare here in Europe. We’d love you to try 160m.
>>73
>>John G3XHZ
>>
>>Sent from my iPhone
>>
>>
>>>On 31 Oct 2023, at 17:29, Bill Weaver <bweaver at weaver-net.net> wrote:
>>>I missed you guys on KH8/S (multiple tries 😊). Would love to take a crack at 
>>>KH8 at sunrise here (1100Z - 1200Z). Safe travels and 73,Bill WE5P
>>>Comfortably Numb
>>>
>>>>Message: 7
>>>>Date: Tue, 31 Oct 2023 04:53:27 -0400
>>>>From: "GEORGE WALLNER" <aa7jv at atlanticbb.net>
>>>>To: "Topband Reflector" <topband at contesting.com>
>>>>Subject: Re: Topband: KH8 Demand on TB
>>>>Message-ID: <ximss-31463542 at be7.cluster1.echolabs.net>
>>>>Content-Type: text/plain; charset="utf-8"; format="flowed"
>>>>
>>>>Hello TobBanders,
>>>>I am in American Samoa (KH8) and will be in the Manua Islands, AH54 (OC-77),
>>>>later this week. I may have a chance to set up a 160 m station and operate
>>>>for a few days. How much wanted is KH8 on TB? ClubLog indicates that it is
>>>>quite rare at #30 on 160 m, but I find that hard to believe for a place
>>>>recently activated by a number of groups.
>>>>
>>>>
>>>>TKS,
>>>>George,
>>>>AA7JV
>>>>
>>>>
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