Robin,
Thanks for the advice. It appears that if I fix the generator noise, the TX
antenna will also be a good RX antenna, but only for signals from 270
degrees (W) to 50 degrees (NE). The mountain shields the noise (and signals)
from any other direction.
May try the low dipole.
TKS,
George,
AA7JV
On Fri, 3 Nov 2023 04:02:12 -0700 "m.r.c." wrote:
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@atlanticbb.net>
To: "John Farrer" <farrerj@yahoo.com>; "John Farrer via Topband" <topband@contesting.com>;
"Bill Weaver" <bweaver@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@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 WE5PComfortably Numb
Message: 7
Date: Tue, 31 Oct 2023 04:53:27 -0400
From: "GEORGE WALLNER" <aa7jv@atlanticbb.net>
To: "Topband Reflector" <topband@contesting.com>
Subject: Re: Topband: KH8 Demand on TB
Message-ID: <ximss-31463542@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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