Baby, it is COLD outside. Or, it was. Now it is getting warmer. I also add some detail about the radio that I talked about in my previous video. Also, what do SW, MW, and LW mean?
Thank you for watching, commenting, and most of all, for subscribing. By subscribing, you will be kept in the loop for new videos and more... my YouTube Channel: https://YouTube.com/NW7US
Reception of a transmission (broadcast) in English from the Voice of Islamic Republic of Iran on 9715 KHz via Software Defined Radio located in Switzerland 2013 April 11.
I will capture this station from time-to-time, as it is interesting to monitor the propaganda emanating from Iran.
Best regards, 73
- Tomas / NW7US
http://NW7US.us
Twitter: @NW7US ( https://Twitter.com/NW7US )
http://SunSpotWatch.com
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https://www.youtube.com/watch?v=8BFInmMcfMM
Here is a band-scan of the 25-Meter International Shortwave Radio Broadcast Band. This was recorded at 12:15 UTC on 28 October 2023. This is the reception I have with a 160-Meter Doublet antenna up at 80 feet, tuned by the SDR-Play RSPdx DSP receiver.
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Thank you for watching, commenting, and most of all, for subscribing.
Please subscribe to my YouTube Channel: https://YouTube.com/NW7US
Also, please click on the bell, to enable alerts so that when I post a new video, you will be notified.
By subscribing, you will be kept in the loop for new videos and more.
Highlights: I am a contributing editor with propagation and space weather columns in:
- CQ Amateur Radio Magazine
http://www.cq-amateur-radio.com/
- The Spectrum Monitor
http://www.thespectrummonitor.com/
Social media:
Twitter: https://Twitter.com/NW7US (@NW7US)
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Copyright, Tomas Hood / NW7US
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https://www.youtube.com/watch?v=G1buyjtksKk
Best seen in HD/Full-screen. Check out the sunspots as they come and go across the solar disc during this rotation (November 1 through December 6, 2010). This is a view of the sun at the 4500-Angstrom wavelength as seen by the Solar Dynamics Observatory (AIA instrument). The sunspots are the dark "spots" that emerge and then 'fade'. Sunspots are darker than the surrounding corona, because they are regions of cooler plasma (cooler than the surrounding plasma). The cooler areas are not as hot because the complex magnetic structures within the sunspot regions restrict the convection of the plasma.
More at:
http://sunspotwatch.org/ ( http://prop.hfradio.org/ )
Again, this must be seen at the highest resolution, in full-screen mode, so you can see the smaller sunspots.
Credit: NASA / SDO
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https://www.youtube.com/watch?v=3UIKu9OuShY
Steam Locomotive No. 844 (Union Pacific 844 Shiloh Limited) rolls by my house, in Bellevue, Nebraska, the morning of March 25, 2012. It is on its way to North Little Rock, Arkansas, to arrive there on March 30. On Saturday, March 31 and Sunday, April 1, the train will be on display from 9:00 a.m. until 5:00 p.m. and the Steam Souvenir Car will be open. This was such an exciting moment on our sunny Sunday morning.
This is part of the Union Pacific's celebration of 150 years of history. At the end of this train, you will see historical Civil War relics... watch closely.
"4-8-4 Northern", I believe, is the type of locomotive. It has 4 pilot wheels, 8 drivers, and 4 trailer wheels. I believe Alco was the builder.
History site: http://up150.com
Other videos of this train:
http://youtu.be/vI4itWinlxI
http://youtu.be/1r01DMwMGTo
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http://NW7US.us
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https://www.youtube.com/watch?v=b-nRcJinTNw
Related video: http://g.nw7us.us/vgK7iB // On September 22, 2011 the Sun unleashed a magnitude X1.4 (moderately large sized) solar flare. This long-duration x-ray flare caused an R3-level (strong) radio blackout on the shortwave frequencies on the sunlit-side of the Earth (mostly over the African continent). It originated in the newly-numbered Catania sunspot group 82, on the Sun's north-eastern limb. Any CME was directed out to the side away from Earth, so there's no danger directed toward Earth.
The flare unleashed a coronal mass ejection that will only glance the Earth (and which will be deflected by the magnetosphere around the Earth). The CME cloud was huge, and because the flare kept erupting over the four-hour period, the CME was also a long-duration ejection process.
SDO observed the flare's peak at 1042 UTC, and watched as the flare lasted about four hours. SDO recorded these movie segments in extreme ultraviolet light. This movie shows various different views of the flare during this period, at wavelengths ranging in temperature from 4,500 degrees Celsius up to 10 million degrees Celsius.
More about the SDO:
http://www.youtube.com/watch?v=FTM2zKqxtfs
http://www.youtube.com/watch?v=1h5rHI_zzQQ
http://www.youtube.com/watch?v=6YBAniOXLEs
http://www.youtube.com/watch?v=cOiss82oP9w
Credit: NASA SDO / Goddard Space Flight Center
More information at http://sunspotwatch.com/
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https://www.youtube.com/watch?v=EFTQTI12Cpk
Are you quarantined? Working from home? Did you lose your job? How are you doing during this crazy time?
What is going on with you during this challenging situation? How are you doing?
I'm quarantined at home. I can work from home, as I am a senior software engineer. I can do my job by remote access to a virtual workstation, through a secure VPN connection. I'm blessed that I still can work during this lock-down. I am doing more ham radio activities, since my radio room is my work-from-home room, too.
I'd like to know: How do you use amateur radio, now that we are all stuck at home? Are you using ham radio more, less, or about the same?
Please leave a comment to let me know how you are doing, and what your are up to.
I am looking forward to hearing from you. Thanks.
Thank you for watching, commenting, and most of all, for subscribing.
Please subscribe to my YouTube Channel: https://YouTube.com/NW7US
Also, please click on the bell, to enable alerts so that when I post a new video, you will be notified.
By subscribing, you will be kept in the loop for new videos and more.
About me: http://me.nw7us.us
Highlights: I am a contributing editor with propagation and space weather columns in:
- CQ Amateur Radio Magazine
http://www.cq-amateur-radio.com/
- The Spectrum Monitor
http://www.thespectrummonitor.com/
Social media:
Twitter: https://Twitter.com/NW7US (@NW7US)
Tumblr: http://blog.nw7us.us
Instagram: https://instagram.com/nw7us
Facebook: https://www.Facebook.com/NW7US
Facebook: https://www.Facebook.com/spacewx.hfradio
Copyright, Tomas Hood / NW7US
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https://www.youtube.com/watch?v=nrSlzfeHvEs
On June 7, 2013, a magnitude M5.9 x-ray flare erupted on the Sun. This video presents different wavelength views of the event. The moderately-strong solar flare was registered in the area of active region, NOAA AR 11762, on the southwestern limb. Any associated Coronal Mass Ejection (CME) related to this eruption is not directed toward the Earth, due to the proximity of the eruption blast site as the flare was not in a geo-effective region facing the Earth.
Please subscribe, and visit:
http://SunSpotWatch.com
This event is one in which we see complex magnetic structures originating from within the Sun, snapping apart, causing a powerful expulsion of solar material and an explosion of a great magnitude of power in the form of light, radio energy, and so on. The light and radio energy reaches Earth in about eight minutes, and is mostly absorbed and blocked by the upper atmosphere.
This affects the Ionosphere, such that shortwave radio radio waves are blocked. This blockage is known as a radio blackout, and it affects only the daylight side of the Earth. It does not affect VHF and higher frequencies, such as TV and cell phones.
At the same time, this expulsion of solar material, solar plasma, is sometimes directed Earthward, and if so, takes about two days to make its way to the Earth. The arrival interacts with the Earth's magnetosphere and geomagnetic field. This may cause geomagnetic storms, which in turn may trigger aurora, and further degradation of shortwave radio propagation. In the worst case, the geomagnetic activity could cause power line and pipeline damage, but it takes a very large geomagnetic storm to cause that sort of damage. This event is not producing such a powerful event, and nearly all of the plasma released by this event is not directed toward the Earth.
Special points go to those who spot the spelling error in the video. Sometimes, my fingers get away from me.
Video/Images:
SDO / AIA / SOHO C2,C3 / NASA
Thank you for watching, Please do subscribe, to keep up with the latest videos of space weather, and other topics.
Best regards,
-- Tomas / amateur radio operator, NW7US
http://NW7US.us
Twitter: https://Twitter.com/NW7US
Facebook: https://www.facebook.com/spacewx.hfradio
Music licensed, Creative Commons
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https://www.youtube.com/watch?v=Zk-Cz-1bRTY