"Robert Casey" wrote





North/South paths were excellent, but East/West paths were
non-symmetrical,
which suggests a tilted ionosphere. The further north you were, the more
exaggerated the effect was. I was hearing the W7/VE7's weak and watery,
but they reported my signal as huge. Meanwhile W1/VE1's who I had
20-over
were CQ'ing in my face.



Didn't think that could happen. I thought light (here radio waves)
would propagate equally as well going as well as coming back.
Like "If you can see my face I also can see your face".

Imagine that the ionosphere is an imperfect mirror which reflects signals
best when they arrive at some specific angle, and reflects less well when
the signals do not arrive at that optimum angle. Now imagine that the
"mirror" is tilted to favor one direction (your signals arrive at mirror at
the right angle, but mine arrive at a more oblique angle and are
consequently refracted more than reflected, and at the same time the
reflection angle is such that my signals pass "over your head" to a more
distant point. ). I will hear you well, but my signal will be attenuated.
From my end the skip appears "short", but from your end the skip will appear
"long".

Only when the mirror is equidistant between us and when it is "flat" will
the path be symmetrical and relative signal strengths reciprocal.

73, de Hans, K0HB

"Robert Casey" wrote in message
...





North/South paths were excellent, but East/West paths were
non-symmetrical,
which suggests a tilted ionosphere. The further north you were, the more
exaggerated the effect was. I was hearing the W7/VE7's weak and watery,
but they reported my signal as huge. Meanwhile W1/VE1's who I had
20-over
were CQ'ing in my face.



Didn't think that could happen. I thought light (here radio waves)
would propagate
equally as well going as well as coming back. Like "If you can see my
face I also
can see your face".

I know this is not 'one way skip', but for a bit of interest... I used to
run skeds into VK land (Australia). During the null of a cycle. There
were times that when I beamed over the SOUTH POLE it was better than the
direct path.

I'm not sure it should be called 'one way skip'. But for lack of a better
term..hi.

Dan/W4NTI

"Dan/W4NTI" w4nti@get rid of this mindspring.com wrote

I know this is not 'one way skip', but for a bit of interest... I used to
run skeds into VK land (Australia). During the null of a cycle. There
were times that when I beamed over the SOUTH POLE it was better than the
direct path.

I'm not sure it should be called 'one way skip'. But for lack of a better
term..hi.

That's "skew path" propagation. It's actually pretty common, but you don't
notice it so much when we're high in the sunspot cycle curve. At solar-flux
minimum, however, it becomes more noticed because you are more likely to
"tweak" your beam azimuth to wring that last little half-dB of signal
strength. Also, it seems more prevalent on the lower bands, below 10MHz,
which otherwise can get hammered by auroral zone absorption.

From here in the midwest, the skew path to EU is toward western Africa,
almost 45 degrees of the normal azimuth. During CQWW I often work from
W0AIH's superstation ( http://www.qth.com/w0aih/ ), and use the Africa
rhombic to work Europe --- it's non-intuitive, but you can really roll up
a score on 80M!

73, de Hans, K0HB

"KØHB" wrote in message
ink.net...
"Dan/W4NTI" w4nti@get rid of this mindspring.com wrote

Short skip was really loud on 20 on Saturday. You were slammin in here.

I use a vertical loop at about 45 feet to the top. Really does well on
NVIS
stuff.

North/South paths were excellent, but East/West paths were
non-symmetrical,
which suggests a tilted ionosphere. The further north you were, the more
exaggerated the effect was. I was hearing the W7/VE7's weak and watery,
but they reported my signal as huge. Meanwhile W1/VE1's who I had 20-over
were CQ'ing in my face.

Can't wait for CQWWCW!!! Maybe the freckles-del-Sol will be more
cooperative.

73, de Hans, K0HB


That's consistent with what I experienced and with what the propagation
prediction software showed.


Dee D. Flint, N8UZE

"KØHB" wrote in message news:Yueub.7157

Can't wait for CQWWCW!!! Maybe the freckles-del-Sol will be more
cooperative.

73, de Hans, K0HB




Looks like that super sunspot will be rotating back towards earth. It may
seriously trash the polar paths. Oh well....we will see when we get there.

Dan/W4NTI

"Dan/W4NTI" w4nti@get rid of this mindspring.com wrote in message
ink.net...
Short skip was really loud on 20 on Saturday. You were slammin in here.

I use a vertical loop at about 45 feet to the top. Really does well on
NVIS
stuff.

Great hearing you.

Don't think I heard Dee.

Dan/W4NTI


Didn't hear you either according to my log. Maybe another time.

Dee D. Flint, N8UZE

"Dee D. Flint" wrote in message
news

"Dan/W4NTI" w4nti@get rid of this mindspring.com wrote in message
ink.net...
Short skip was really loud on 20 on Saturday. You were slammin in here.

I use a vertical loop at about 45 feet to the top. Really does well on
NVIS
stuff.

Great hearing you.

Don't think I heard Dee.

Dan/W4NTI


Didn't hear you either according to my log. Maybe another time.

Dee D. Flint, N8UZE


Yep, I wasn't feeling too well on Saturday. My other op couldn't make it.
So I did mostly search and pounce on Saturday.

On Sunday towards the mid day I started CQing. Managed 434 qso's, 76 out
of 80 sections. Not good. But considering it all...hi.

See ya down the log.

Dan/W4NTI

"KØHB" wrote in message
ink.net...
Worked N8UZE and W4NTI this past weekend. Where were the rest of you? I
coulda used the Q's!

I think the ionosphere was tilted because there was a LOT of one way
propagation. Maybe someone put diodes in my transmission lines?

ô¿ô 73, de Hans, K0HB
--
Help support youth involved in Amateur Radio.
http://www.mnyarc.org
http://www.k0bsa.org



Was it me or my OM working the mike? Our goal was the clean sweep but we
just didn't get the propagation. I heard the PAC section but to weak for me
to be able to get through the pile up and we never did hear NT from here.
We ended up 10 sections short. Last year, when we weren't even trying we
were only 3 sections short.

Dee D. Flint, N8UZE

"Dee D. Flint" wrote

Was it me or my OM working the mike?

Musta been the OM, because I remember at the time thinking "that's Dee's
call" but then I had a mental disconnect because the op didn't sound all
that feminine. Sure glad I didn't say "Hi Sweetie"!!!! grin

73, de Hans, K0HB

"KØHB" wrote in message
ink.net...
"Dee D. Flint" wrote

Was it me or my OM working the mike?

Musta been the OM, because I remember at the time thinking "that's Dee's
call" but then I had a mental disconnect because the op didn't sound all
that feminine. Sure glad I didn't say "Hi Sweetie"!!!! grin

73, de Hans, K0HB

Yes he's got a nice sounding tenor voice although being an alto my voice
isn't too much higher than his but it is noticeably different.

Dee D. Flint, N8UZE