CHANCE OF MAGNETIC STORMS THIS WEEK: NOAA forecasters say there is a 45% chance of polar geomagnetic storms on 18 and 19 October when Earth enters a new stream of solar wind. The New Moon will provide a velvety-dark backdrop for auroras around the Arctic Circle.
SPOTLESS SUN SPARKS BRIGHT AURORAS: The sun just did something ironic. For a whole week, Oct. 9th - 15th, the face of the sun was utterly blank. There were no sunspots and no solar flares; NOAA classified solar activity as "very low." At the same time, space weather was remarkably stormy. From Oct. 11th through 15th, not a single day went by without a geomagnetic storm.
What happened? This:
This is a coronal hole, a place in the sun's atmosphere where the magnetic field peels back and allows solar wind to escape. Solar wind spewing from this hole hit Earth's magnetic field on Oct. 11th. It mimicked the effect of a CME (a cloud of gas hurled toward us by an exploding sunspot), rattling our planet's magnetic field and lighting up polar regions with beautiful lights. Five days of G1- and G2-class geomagnetic storms ensued.
In Preston, England, aerospace engineer Stuart Green captured the "rattling" of Earth's magnetic field on his backyard magnetometer, buried a half-meter beneath the surface of his garden. Click on the image to see the full 5 days of geomagnetic storming:
"Passing in two main waves, solar wind flowing from the coronal hole sparked beautiful auroras around both poles and clearly disturbed our local magnetic field," he says. "The activity now appears to be subsiding ahead of the next wave heading our way in the coming days."
Coronal holes are present throughout the solar cycle, even during Solar Minimum when sunspots are scarce, and they are a key reason why space weather never stops. Stay tuned for more!
TRY SOME 50 MHz SKEDS DURING THE LIGHTNING SEASON – The Johannesburg area is renowned for their late afternoon lightning storms, so this will be a great time to experiment with lightning scatter propagation. Of course only stations outside the lightning area would be able to participate, as those inside this area will have their antennas grounded. We already know that clear FM signals from the 108 FM broadcast band have been heard for about ten seconds or so in East London, which emanated from Durban over a distance of about 450 km, after lightning flashes during a distant thunderstorm. Skeds should be arranged with amateurs outside the thunderstorm area, making brief CQ calls after a lightning flash or radio burst and listening during the next burst or flash and so forth. It would be interesting to find out how directional the ionized trails of lightning are. So who would take up the challenge and establish that first lightning scatter contact on 50 MHz where the reflected radio signals could be a bit longer. Also see Mike ZS2FM weekly clomn. Click here
SARLNEWS: AMATEUR RADIO TODAY - listen to these programmes on line or download to retransmit on local nets, a SARL service to Radio Amateurs.
Sunday 15 October 2017
SARLNUUS Irene Myburgh luister/laai hieraf
SARLNEWS with Roy Norton ZS2BL download/listen here AMATEUR RADIO TODAY with Hans van de Groenendaal listen here or for more details click here
Get your copy of the October 2017 Radio ZS here - In this FREE issue we tell about the 24th IARU Region 1 Conference. We look at the Future of Amateur Radio and we learn more about the ZS3ZU Hammies. Find out about the ZS SOTA update and the Southern African Fauna and Flora.
Read the Conference Report of the 24th IARU Region 1 General Conference here
SDR WORKSHOP CAPE TOWN 4 November 2017 - The workshop presented by AMSATSA in cooperation with the SARL will be held in Cape at the Cape Peninsula University of Technology (Bellville campus) on 4 November 2017. Get more details and booking form here
Full Kletskous CubeSat to fly on BACAR on 21 October 2017 - The AMSAT SA Kletskous team is putting the final touches on the CubeSat to be tested on the BACAR flight on 21 October 2017. The team is integrating the electrical power system (EPS), the stabiliser board, the on-board computer system, the transponder and antennas into the new space frame. No solar panels will be flown. Kletskous will be powered by a battery. This is a precautionary measure as solar panels are were expensive and could be severely damaged on the landing. BACAR is scheduled to be launched at 9 am from an airfield near Secunda.
Kletskous is a crowd funded project. Please become part of the project by donating to the Kletskous fund. Details and regular updates can be found on www.amsatsa.org.za. All donors are acknowledged on the website.
The transponder will operate on the following frequency
Uplink: 435.145 MHz NBFM
Downlink: 145.870 MHz NBFM
Maximum uplink power is 5 watt EIRP. ( Kletskous with transponder installed - Pgoto: ZS6LMG)
DO NOT USE HIGHER POWER
JOTA JOTI 2017 Update - ZS6SSG will be running a station as done over the last couple of years. This year, JOTA celebrates the 60th year of running. To commemorate this milestone, we will be running a special event callsign over the weekend (20th to 22nd October). The callsign is: ZS60JOTA. Look out for this call and make contact. We will be running on 20m, 40m and 80m bands for the weekend.
Amateurs interested in assisting with running a station for a Scout Group near their QTH, or would just like to come through and have a look at what is happening, please drop a mail here. It's a great event and the perfect opportunity to grow the youth involvement in this amazing hobby.
South Africa. This year, the Jamboree on the Air (JOTA) celebrates its 60th year of running. To commemorate this milestone, the Sandringham Scout Group, ZS6SSG, will be running special event station ZS60JOTA over the JOTA weekend of 20 to 22 October. Activity will be on 80, 40 and 20 metres. QSL via ZS6RKE, direct or bureau.
Egypt. SU60J Special Call sign upcoming activity for (JOTA-JOTI 2017) the largest Scouting event in the world www.qrz.com/db/SU60J
Solihull Amateur Radio Society will be running two Jamboree on the Air stations on 21 October. GB1NSS will be on the air for Nelson Sea Scouts in Solihull and GB0SDB will be active in Birmingham.
From the 20th to the 22nd Watcombe Radio Club is running JOTA station GB3TBS for Torbay Borough Scouts at the Torbay District Scout Camp in Torquay. Celebrating 60 years of Jamboree on the Air, the station will operate on Friday, before the official start of JOTA, from 07:00 to midnight. Saturday hours will be 09:30 to 20:00 UTC and on Sunday it's 10:00 to 13:00 UTC. Scouts are expected to attend all three sessions and pass greetings messages. There will also be an amateur television station thanks to local members of the British Amateur Television Club. The first event in 1957 included an ATV station so this seems appropriate.
Grey Point Fort Amateur Radio Society will be operating JOTA and Jamboree on the Internet, JOTI, with Bangor West Explorer Scouts. Activity will be from 10:00 to 16:00 UTC on Friday, Saturday and Sunday at Grey Point Fort, Fort Road, Helen's Bay, Crawfordsburn, Co Down BT19 1PU. There will be a talk-in station and attractions include family activities and special interest groups. Contact Stephen McFarland, GB0GPF, on 028-9263 4315 or email email@example.com.
Perth Repeater Group is running a JOTA event with 1st Perthshire Pitlochry Scout Group next Saturday and Sunday from 09:00 UTC to 18:00 UTC. Operations will be at Atholl Road, Pitlochry, Perthshire PH16 5BX. Contact Martin Hobson, GS0PRG, on 01796 472 140 or email firstname.lastname@example.org.
Coventry Amateur Radio Society is taking part in JOTA next Saturday and Sunday, supporting the Coventry Minotaur Unit. GB0CMU will be on the air from The Scout Headquarters, Partidge Croft, Coventry.
Mexico. Scout station 4B3ASM will be active on 20 to 22 October for the annual Jamboree On The Air (JOTA). It will be located in Ciudad del Carmen on Carmen Island (NA-135). QSL via XE3AA.
REPORT BACK ON SARL/SARL LIAISON MEETING - The SARL-ICASA Liaison Committee met on 7 July. To read the summary report click here
Advertising in Radio ZS and the SARL Web site - Radio ZS and the SARL web welcomes advertising. It is a source of information for readers. To place an advertisement in Radio ZS, contact Dennis, ZS4BS, at email@example.com. To advertise on the League web site, contact Hans, ZS6AKV at firstname.lastname@example.org
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The rates are based on the complete supply of material in Jpeg unless otherwise negotiated. For artwork additional charges may apply as agreed
The content of the advertisements must comply with regulations and norms acceptable in South Africa
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