Minor geomagnetic storm continues. Increased geomagnetic activity is
expected to continue for next 24 to 48 hours. Source is high speed solar
wind with Bz orientation southward, due to coronal hole, coupled with weak
shock of July 28, 2006. Current Kp index: 6. Current solar wind: 634 km/s
at 2.7 protons/cm3. On 2006 Jul 28 0748Z: Bz: -2.7 nT. Aurora Activity
Level was 8 at 0618 UTC.

Summary for last 24 hours: Space weather for the past 24 hours has been
moderate. Geomagnetic storms reaching the G2 level occurred. Forecast for
next 24 hours: Space weather for the next 24 hours is expected to be
minor. Geomagnetic storms reaching the G1 level are expected.

http://propagation.hfradio.org/

(NW7US, SWL mail list)


dxAce
Michigan
USA

In article ,
dxAce wrote:

Minor geomagnetic storm continues. Increased geomagnetic activity is
expected to continue for next 24 to 48 hours. Source is high speed solar
wind with Bz orientation southward, due to coronal hole, coupled with weak
shock of July 28, 2006. Current Kp index: 6. Current solar wind: 634 km/s
at 2.7 protons/cm3. On 2006 Jul 28 0748Z: Bz: -2.7 nT. Aurora Activity
Level was 8 at 0618 UTC.

Summary for last 24 hours: Space weather for the past 24 hours has been
moderate. Geomagnetic storms reaching the G2 level occurred. Forecast for
next 24 hours: Space weather for the next 24 hours is expected to be
minor. Geomagnetic storms reaching the G1 level are expected.

http://propagation.hfradio.org/

(NW7US, SWL mail list)

The space weather/propagation connection is still a mystery to me.
Sometimes propagation conditions follow the weather and sometimes it
does not. Yesterday when we were in the geomagnetic storm NZ and
Australia were putting big signals in here and I suspect that any over
the pole signals might have been degraded.

I expected Australia and NZ to sound poor but they were very good and
sounded like a local broadcaster a few miles down the road with over S9
levels.

--
Telamon
Ventura, California

In the Summer time,Earth is a few million miles further away form the
Sun and the Northern Latitudes are tilted toward the Sun.In the Winter
time,the opposite is true.That is why we have Winter,Spring,Summer and
Fall.Maybe all of that has something (along with the Sunspots too) to do
with radio reception.Well,of course it does.

My DirecTV Radio tv satellite signal quit at 1:42 PM this afternoon
because it is stormy weather between my satellite dish and that ''Bird''
way up there in the Sky and I can't watch Dangerous Crossing movie on tv
now,but we are getting a very nice Rain right now.Come onnnnnnn,Rain.
cuhulin
www.tcnj.edu/~hofmann/swamp.htm

Telamon wrote:

In article ,
dxAce wrote:

Minor geomagnetic storm continues. Increased geomagnetic activity is
expected to continue for next 24 to 48 hours. Source is high speed solar
wind with Bz orientation southward, due to coronal hole, coupled with weak
shock of July 28, 2006. Current Kp index: 6. Current solar wind: 634 km/s
at 2.7 protons/cm3. On 2006 Jul 28 0748Z: Bz: -2.7 nT. Aurora Activity
Level was 8 at 0618 UTC.

Summary for last 24 hours: Space weather for the past 24 hours has been
moderate. Geomagnetic storms reaching the G2 level occurred. Forecast for
next 24 hours: Space weather for the next 24 hours is expected to be
minor. Geomagnetic storms reaching the G1 level are expected.

http://propagation.hfradio.org/

(NW7US, SWL mail list)

The space weather/propagation connection is still a mystery to me.
Sometimes propagation conditions follow the weather and sometimes it
does not.

Actually shortwave propagation has very little if anything to do with the
'weather'.

The 'space' part comes in because of the effect the sun has on propagation.
Therefore it is 'space weather' vs. terrestrial weather.

dxAce
Michigan
USA

Telamon wrote:

In article ,
dxAce wrote:

Minor geomagnetic storm continues. Increased geomagnetic activity is
expected to continue for next 24 to 48 hours. Source is high speed solar
wind with Bz orientation southward, due to coronal hole, coupled with weak
shock of July 28, 2006. Current Kp index: 6. Current solar wind: 634 km/s
at 2.7 protons/cm3. On 2006 Jul 28 0748Z: Bz: -2.7 nT. Aurora Activity
Level was 8 at 0618 UTC.

Summary for last 24 hours: Space weather for the past 24 hours has been
moderate. Geomagnetic storms reaching the G2 level occurred. Forecast for
next 24 hours: Space weather for the next 24 hours is expected to be
minor. Geomagnetic storms reaching the G1 level are expected.

http://propagation.hfradio.org/

(NW7US, SWL mail list)

The space weather/propagation connection is still a mystery to me.
Sometimes propagation conditions follow the weather and sometimes it
does not. Yesterday when we were in the geomagnetic storm NZ and
Australia were putting big signals in here and I suspect that any over
the pole signals might have been degraded.

I expected Australia and NZ to sound poor but they were very good and
sounded like a local broadcaster a few miles down the road with over S9
levels.

That's primarily becaue those signals were most ikely not following a
trans-polar route but rather a trans-equatorial path.

In some instances solar storm conditions will actually cause trans-equatorial
path signals to be enhanced.

dxAce
Michigan
USA

In article ,
dxAce wrote:

Telamon wrote:

In article ,
dxAce wrote:

Minor geomagnetic storm continues. Increased geomagnetic activity is
expected to continue for next 24 to 48 hours. Source is high speed solar
wind with Bz orientation southward, due to coronal hole, coupled with weak
shock of July 28, 2006. Current Kp index: 6. Current solar wind: 634 km/s
at 2.7 protons/cm3. On 2006 Jul 28 0748Z: Bz: -2.7 nT. Aurora Activity
Level was 8 at 0618 UTC.

Summary for last 24 hours: Space weather for the past 24 hours has been
moderate. Geomagnetic storms reaching the G2 level occurred. Forecast for
next 24 hours: Space weather for the next 24 hours is expected to be
minor. Geomagnetic storms reaching the G1 level are expected.

http://propagation.hfradio.org/

(NW7US, SWL mail list)

The space weather/propagation connection is still a mystery to me.
Sometimes propagation conditions follow the weather and sometimes it
does not. Yesterday when we were in the geomagnetic storm NZ and
Australia were putting big signals in here and I suspect that any over
the pole signals might have been degraded.

I expected Australia and NZ to sound poor but they were very good and
sounded like a local broadcaster a few miles down the road with over S9
levels.

That's primarily becaue those signals were most ikely not following a
trans-polar route but rather a trans-equatorial path.

In some instances solar storm conditions will actually cause trans-equatorial
path signals to be enhanced.

That seems to be the case.

--
Telamon
Ventura, California

I wonder when there is a coronal hole that AM radio at night is very
poor even if K or A index is low.
I have noticed this over years of checking propagation that coronal
hole output = poor reception on AM at night.

Any explanation of why coronal holes effect AM more than B-C Class
solar flares or I am I wrong in my observation?

Kim

Telamon wrote:
In article ,
dxAce wrote:

Telamon wrote:

In article ,
dxAce wrote:

Minor geomagnetic storm continues. Increased geomagnetic activity is
expected to continue for next 24 to 48 hours. Source is high speed solar
wind with Bz orientation southward, due to coronal hole, coupled with weak
shock of July 28, 2006. Current Kp index: 6. Current solar wind: 634 km/s
at 2.7 protons/cm3. On 2006 Jul 28 0748Z: Bz: -2.7 nT. Aurora Activity
Level was 8 at 0618 UTC.

Summary for last 24 hours: Space weather for the past 24 hours has been
moderate. Geomagnetic storms reaching the G2 level occurred. Forecast for
next 24 hours: Space weather for the next 24 hours is expected to be
minor. Geomagnetic storms reaching the G1 level are expected.

http://propagation.hfradio.org/

(NW7US, SWL mail list)

The space weather/propagation connection is still a mystery to me.
Sometimes propagation conditions follow the weather and sometimes it
does not. Yesterday when we were in the geomagnetic storm NZ and
Australia were putting big signals in here and I suspect that any over
the pole signals might have been degraded.

I expected Australia and NZ to sound poor but they were very good and
sounded like a local broadcaster a few miles down the road with over S9
levels.

That's primarily becaue those signals were most ikely not following a
trans-polar route but rather a trans-equatorial path.

In some instances solar storm conditions will actually cause trans-equatorial
path signals to be enhanced.

That seems to be the case.

--
Telamon
Ventura, California

In the Summer time,Earth is a few million miles further away form the
Sun and the Northern Latitudes are tilted toward the Sun.In the Winter
time,the opposite is true.That is why we have Winter,Spring,Summer and
Fall.Maybe all of that has something (along with the Sunspots too) to do
with radio reception.Well,of course it does.

The earth is closest to the sun (perihelion) in early January which is
summer in the southern hemisphere. Six months later in July we are
farthest from the sun (aphelion) which is summer in the north. This is
why shortwave conditions are generally poorer at this time of year in
the northern hemisphere because we are farthest from the sun and
therefore receive less radiation to energize the ionosphere. The longer
days of summer in the north help to compensate for this effect to a
certain degree but not completely.