Night time fading on short wave
 

I have been experiencing some unexplained night time fading lately. An
example of this is Radio Netherlands out of the Antilles during the
04:00 to 05:00 UTC nightly broadcast on 9590.

The fading is over some 10 or 15 minutes time . The signal goes from
over +S9 to S3 over about 30 seconds for a 10 to 15 minute period. Then
it comes back the same way. Anyone else getting this? The only thing I
can relate it to is the solar wind magnetic component swinging plus to
minus.

This has been happening to me evenings for the last week. The fading is
not unlike a daytime path fade from a solar flare.

--
Telamon
Ventura, California

Telamon,

In article .com,
"RHF" wrote:

Telamon wrote:
I have been experiencing some unexplained night time fading lately. An
example of this is Radio Netherlands out of the Antilles during the
04:00 to 05:00 UTC nightly broadcast on 9590.

The fading is over some 10 or 15 minutes time . The signal goes from
over +S9 to S3 over about 30 seconds for a 10 to 15 minute period. Then
it comes back the same way. Anyone else getting this? The only thing I
can relate it to is the solar wind magnetic component swinging plus to
minus.

This has been happening to me evenings for the last week. The fading is
not unlike a daytime path fade from a solar flare.

Is this happening with more than one Antenna
and Radio combination ?

Yes.

Does this 'unexplained night time fading' extend
to any other Shortwave Band besides 31 Meters ?

Yes. Other examples would be BBC on 5975 and also 9525.

--
Telamon
Ventura, California

In article

,
Telamon wrote:

In article .com,
"RHF" wrote:

Telamon wrote:
I have been experiencing some unexplained night time fading lately. An
example of this is Radio Netherlands out of the Antilles during the
04:00 to 05:00 UTC nightly broadcast on 9590.

The fading is over some 10 or 15 minutes time . The signal goes from
over +S9 to S3 over about 30 seconds for a 10 to 15 minute period. Then
it comes back the same way. Anyone else getting this? The only thing I
can relate it to is the solar wind magnetic component swinging plus to
minus.

This has been happening to me evenings for the last week. The fading is
not unlike a daytime path fade from a solar flare.

Is this happening with more than one Antenna
and Radio combination ?

Yes.

Does this 'unexplained night time fading' extend
to any other Shortwave Band besides 31 Meters ?

Yes. Other examples would be BBC on 5975 and also 9525.

Well, this might explain things.
http://www.sec.noaa.gov/alerts/alerts_timeline.html

Looks like the wind speed has been changing dramatically along with
polarity. I'm just wondering if other people have noticed the night time
path fading.

--
Telamon
Ventura, California

Telamon,

In article .com,
"RHF" wrote:

Telamon,
.
I have monitored this frequency for two days for Radio Netherlands
in various languages and have had a consistent S9 to S9 +10dB
Signal Level with an Icom IC-R75 and these Shortwave Antennas :
.
* NS Low Noise Inverted "L" Antenna - 75/25 Foot #14 AWG Stranded
(19)
with a RF Junkie "SWL-1" 10:1 MLB and RG8 Coax Cable Feed-in-Line
.
* EW Low Noise Inverted "L" Antenna - 30/15 Foot Hook-Up Wire
with a TV type 300 Ohm to 75 Ohm Matching Transformer and RG6 Coax
Cable Feed-in-Line.
.
* Shield RG8 Coax Cable Loop Antenna - 13 Foot NS
with Pre-Amp #2 engaged
.
* Shield RG6 Coax Cable Inverted Triangle Loop Antenna - 30 Foot EW
with Pre-Amp #2 engaged.
.
~ RHF
OK-Land, Cali-4-Ni-A
37:47:02 N
122:13:55 W

Yeah, the norm for me is very strong signal S9 to +10dB on a folded
dipole and a flat horizontal loop. No amplifiers. When conditions are
right and the band is hot they can be as much as +30dB average.

--
Telamon
Ventura, California