Weekly Propagation Summary – 2015 Jun 15 16:10 UTC

Weekly Propagation Summary (2015 Jun 15 16:10 UTC)

Here is this week’s space weather and geophysical report, issued 2015 Jun 15 0323 UTC.

Highlights of Solar and Geomagnetic Activity 08 – 14 June 2015

Solar activity ranged from very low to moderate levels (R1-minor) with very low activity observed on 08 June, low activity observed on 09, 10 and 12 June and moderate activity observed on 11, 13 and 14 June. A majority of the flare activity occurred from Regions 2360 (N15, L=129, class/area Eac/220 on 12 June) and 2367 (S20, L=001, class/area Ekc/340 on 14 June). Region 2367, the largest region on the disk, produced an M1 flare at 11/0855 UTC. This region exhibited steady growth since first rotating onto the disk on 10 June. Region 2360 produced an M1/Sf flare at 13/0729 UTC and an M2 flare at 14/0059 UTC while exiting the west limb on the 14th. Multiple filament eruptions and eruptive prominences were observed throughout the week, but none resulted in Earth-directed coronal mass ejections.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels on 08-09 June. High levels on 10-13 June and moderate levels on 14 June were observed in response to an enhanced solar wind environment caused by the influence of a negative polarity coronal high speed stream (CH HSS).

Geomagnetic field activity was at predominately quiet to active levels with isolated minor storm levels (G1-minor) observed on 08 and 14 June and an isolated major storm period (G2-moderate) observed on 08 June. The summary period began with unsettled to major storm levels as Earth was under the influence of a negative polarity CH HSS. Effects from the CH HSS persisted through midday on 11 June with quiet to active conditions. Quiet to unsettled conditions were observed for the remainder of 11 June through 13 June. The period ended on 14 June with a co-rotating interaction region in advance of a positive polarity CH HSS that affected Earth's geomagnetic field with unsettled to isolated minor storm periods.

Forecast of Solar and Geomagnetic Activity 15 June – 11 July 2015

Solar activity is expected to be at low levels with a slight chance for M-class (R1-minor) flare activity from 15-24 June from Region 2367 (S20, L=001). As region 2367 rotates off the disk, very low to low levels are expected on 25-26 June. Activity levels are expected to increase to low with a slight chance for M-class flare activity on 27 June – 11 July as old Region 2360 (N15, L=129) rotates back on to the visible disk.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is anticipated to reach moderate to high levels on 15-19 Jun and 07-11 Jul in response to an enhanced solar wind environment caused by the influence of coronal hole high speed streams (CH HSSs). Normal levels are expected for the remainder of the outlook period.

Geomagnetic field activity is expected to reach unsettled to active levels on 15-16 Jun and 06-08 Jul with minor storm levels (G1-minor) anticipated on 05 Jul and 11 Jul in response to recurrent CH HSS effects. Generally quiet field conditions are expected for 17 Jun-04 Jul.

Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/

Live Aurora mapping is at http://aurora.sunspotwatch.com/

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LHS Episode #148: Alligators Are Good Eatin’

Alligator-DinnerWelcome to Episode #148 of Linux in the Ham Shack! In this installment, your hosts discuss Art Bell and the radio of kooks everywhere, free newsletters, Linux terminal utilities, FreeDV, FlexRadio, loggers and a whole bunch more. Thanks for listening, and enjoy all the information we cram in your earholes.

73 de The LHS Guys


Russ Woodman, K5TUX, co-hosts the Linux in the Ham Shack podcast which is available for download in both MP3 and OGG audio format. Contact him at [email protected].

Fluorescent Light QRN


A recent posting on the ON4KST 6m Chat page brought up the question of QRN coming from  fluorescent lighting.

Lefty, K1TOL, had a lot of QRN coming from his neighbour's garage, about 1,000 feet away. He solved the problem by changing the ballasts, purchased at Home Depot. This is the ballast that solved his problem, so if you are having similar difficulty, perhaps this will be of benefit.

Sometimes just changing to a different bulb type (manufacturer) will solve the problem as well but from what I have read, you get what you pay for and likely the bargain-bin bulbs are not the quietest.

Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

Series Eight Episode Twelve – Running an Amateur / Ham Radio Special Event (14 June 2015)

In this episode, Martin M1MRB / W9ICQ is joined by Ed Durrant DD5LP ,Martin Rothwell M0SGL and Matthew Nassau 2E0MTT to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief, and this episodes feature is  - Running a Special Event.

  • Passing (SK) of Bill Pasternak WA6ITF
  • New VK balloon Circumnavigates the Earth
  • German Museum Joins Museums on the Air
  • The Morse Mouse - Educational Fun with Ham Radio
  • Britain's Pirate Radio Stations
  • Tytera TYT MD-380 DMR handheld
  • Radio Call Saves SOTA Climber
  • Bletchley Honour for Morse Code Interceptor
  • Australian Foundation Licence due for Review
  • Lotto Grant to buy Radios for Blind
  • Swedish 160m Proposal

Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at [email protected].

Series Eight Episode Twelve – Running an Amateur / Ham Radio Special Event (14 June 2015)

In this episode, Martin M1MRB / W9ICQ is joined by Ed Durrant DD5LP ,Martin Rothwell M0SGL and Matthew Nassau 2E0MTT to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief, and this episodes feature is  - Running a Special Event.

  • Passing (SK) of Bill Pasternak WA6ITF
  • New VK balloon Circumnavigates the Earth
  • German Museum Joins Museums on the Air
  • The Morse Mouse - Educational Fun with Ham Radio
  • Britain's Pirate Radio Stations
  • Tytera TYT MD-380 DMR handheld
  • Radio Call Saves SOTA Climber
  • Bletchley Honour for Morse Code Interceptor
  • Australian Foundation Licence due for Review
  • Lotto Grant to buy Radios for Blind
  • Swedish 160m Proposal

Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at [email protected].

AmateurLogic 79: Attack of the Scope Squid


AmateurLogic.TV Episode 79 is now available for download.

Tommy puts the DHAP MiniMega together. Peter visits Adelaide. George builds the Scope Squid Plus your viewer emails and more.

1:11:00

Download
YouTube


George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].

10m – my best band of all

10m has always been my best band. I have lost count of the DXCC totals with QRP SSB. Chasing countries has never been a real activity of mine, although I still get a “kick” from working a new country.

At sunspot peaks it supports world-wide DX with QRP and simple wire antennas. Even in the quiet solar years there is often some DX to be found and usually late April to September there is sporadic-E (Es) to be found with good signals over ranges up to around 1500km and sometimes further. These are for the northern hemisphere.  There tends to be a smaller Es peak around December/January.  It is the reverse in the southern hemisphere. It is quite normal to hear USA stations by Es in the summertime, but usually openings are not for long.

If 10m is quiet it is worth checking CB frequencies (11m) as a “band open” sign. Often CB can be busy when 10m is quiet due to lack of activity.  Thanks to Steve VE7SL for this good advice.

At night and in the quiet years it is an ideal band for local nets on FM or AM. At 1.7MHz wide it is big band so all modes can be supported.

See https://sites.google.com/site/g3xbmqrp3/hf/10m_op .


Roger Lapthorn, G3XBM, is a regular contributor to AmateurRadio.com and writes from Cambridge, England.

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  • Matt W1MST, Managing Editor