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SARL Today HF Update with ZS4BS VHF/UHF News with Mike Bosch ZS2FM Contest News with Geoff ZS6C SARL Forum current topics Commercial Hamads

SARL TODAY! 

Two SA CubSats sucessfully launched to the ISS -The South African satellite industry has taking another step forward as a player in the international space arena with the launch of two South African built nanosatellites from Cape Canaveral in Florida USA. 

Two CubeSats, ‘nSight1’ designed and manufactured by Cape Town-based SCS Space, a member of the SCS Aerospace Group and ‘ZA-Aerosat’ designed and manufactured by CubeSpace of the  Stellenbosch University, have been launched  as part of a batch totaling 28 CubeSat from 23 different countries. For full story 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 23 April 2017

SARLNUUS  met Dawie Conradie ZR6DHC  luister/laai hier af

SARLNEWS with Dennis Green ZS4BS  download/listen here

AMATEUR RADIO TODAY with Dawie Conradie ZR6DHC, listen here  or visit the Amateur Radio Today page with more details and download links  here


AIRCRAFT SCATTER CAN PROVIDE DAILY LONG DISTANCE CONTACTS – The longest distance ever recorded in the USA of radio reflection from Aircraft is 1300 km. Normally two-way contacts on Aircraft Scatter are around distances of 800 km. The Krugersdorp ZS6JON beacon on 50,050 MHz CW has regularly been observed on the WSJT waterfall in Port Elizabeth over a distance of 900 km, whenever a plane travelling from PE to JHB crossed the midpoint north of the Orange River. On a few occasions a plane flying from West/East produced an Aircraft Scatter signal from Krugersdorp and when it started to fade out, while at the same time a signal began to fade in on the ZS6TWB beacon on 50,044 MHz CW from Polokwane, 1178 km from Port Elizabeth. The VK’s suggested that Aircraft Scatter from high flying aircraft at 43 000 ft (about 13000 metres) could on occasions be enhanced by high elevation Tropo Ducting and extend the total range by several hundred kilometres. This could explain the record-breaking contact on 50 MHz digital via Aircraft Scatter, which was established over a distance of 1290 km by ZS1AX and ZS6OB during a PEARS VHF/UHF contest.  At that time of day there were many planes flying on the flight path between Cape Town and Johannesburg, and there were a minimum number of minor meteors around. Aircraft Scatter is another mode that radio amateurs could explore especially during the approaching winter months. (article by ZS2FM)


EXPLOSION ON THE SUN: On April 23rd around 0500 UT, a dark filament of magnetism on the sun exploded. See the movie from NASA's Solar Dynamics Observatory.  An analysis is underway to determine if any portion of the debris is heading for Earth. Stay tuned.  A solar wind storm is underway around Earth as our planet enters a high-speed stream of gas flowing from a large hole in the sun's atmosphere. NASA's Solar Dynamics Observatory photographed the source of the wind on April 23rd:

This is a coronal hole (CH)--a place in the sun's atmosphere where the magnetic field peels back and allows solar wind to escape. Solar wind flowing from this hole is moving faster than 700 km/s--a veritable gale.  Moreover, the wind is threaded with "negative polarity" magnetic fields. Such fields do a good job connecting to Earth's magnetosphere and energizing geomagnetic storms. 

NOAA forecasters estimate a 80% chance of polar geomagnetic storms on April 23rd subsiding to 'only' 60% to 65% on April 24th and 25th as Earth moves through this potent stream of solar wind. High-latitude sky watchers should remain alert for auroras.


National Convention and AGM:  SARL members can download all the AGM document from the members only pages on the members only button on the top right of this page and  enter your pin number.


Update your e-mail address - Kelley at the NARC asks that SARL Members will check and update their e-mail address. Kelley receives about 55 bounced e-mails each time a SARL Communication is sent out.

Go to your call book entry and update that e-mail address today!


 

PAY YOUR AMATEUR RADIO LICENCE NOW -   Your 2017/2018 licence is payable on 1 April 2017. The fee is R134.00.  The fee is for 5 years is R559.00. Advise Dewald  at  DKuhrau@icasa.org.za of your payment for a five year license. 

ICASA is not oblighed to send out invoices.  When paying your licence  by EFT or at the  Post Office please use your licence number and callsign as reference. Send the payment advice to the following two addresses Specrev@icasa.org.za and copy to  Speclicensing@icasa.org.za. The ICASA bank details are as follows:  ICASA, Nedbank,
Branch code: 146 245, account number 1462002927

ICASA automatically  cancels all licenses that are not renewed within 30 days of 1 April. Failing to pay in time  will mean that you may have to apply for a new license. You may just find that some else has applied and obtained your callsign. 


 

NVIS PROPAGATION  - UNDERSTAND THE  BASICS - Radio Communication via Near Vertical Incidence Skywave propagation  can be used for communication over a wide area. It is very well suited for emergency communication. It uses frequencies between 3 and 10 MHz with amateur allocation in the 5 MHz particularly attractive.  Two propagation researchers, Ben Witvliet  and Rosa Ma Alsina-Pages wrote an interesting paper with lots of reference to  other papers for additional reading.

You can download it here

 


4 Bursaries available for under 26 to study for class A -  If you are under 26 and planning to study for  the Class A amateur radio examination there are bursaries available.. For more detail and application forms click here


 

RSGB HANDBOOK NOW AVAILABLE IN SA- The new RSGB Radio Communication Handbook is now avaiable in South Africa. Also available are the ARRL 2017 Handbook (hardcover version) and Low Band DXing. For a list of books locally stocked and a mailorder from click here. SARL Members get up to 10% discount .


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 radiozs@sarl.org.za. To advertise on the League web site, contact Hans, ZS6AKV at artoday@sarl.org.za

Advertising Rates

Display (cameo) on home page - R500 pm - R2 500 for 6 months - R4 500 per annum

Commercial Hamad on home page - R60 pm - R300 for 6 months - R500 per annum

Radio ZS Strip advertisement, 10 cm x 2 columns on top of the page - R100 pm - R500 for 6 months - R1 000 per annum

Display (cameo) on home page and Radio ZS Strip advertisement (as above)       - R550 pm - R2 700 for 6 months - R4 900 per annum 

Terms and conditions

All contract advertisements content may be changed monthly on 5 working day notice

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

All advertisements are playable in advance by EFT to SA Radio League, ABSA, account no 4071 588 849 branch code 632 005

All correspondence and material must be sent to admin@sarl.org.za with a copy to artoday@sarl.org.za


HF Update with Dennis, ZS4BS/7P8DG (updated 23 April 2017) 

Get your weekly copy of HF Happenings at http://www.sarl.org.za/hf_happenings.asp

The Amateur Data Interchange Format (ADIF) is 21 years old. Most people will recognize ADIF, and associated "ADI-files" as the means by which contest logs are exported from contest logging programs and into general purpose logging programs, log analysers, OQRS systems, and the like. ADIF has evolved from a relatively simple way to encode QSO information so that it can be read or written by computer programs to the recent ADIF 3's ADX files that use XML for self-describing data formats. People involved in the standard as producers or consumers of ADIF data participate in the Yahoo ADIF Developers Group https://groups.yahoo.com/neo/groups/adifdev/info, while ADIF standards are published at http://adif.org/  

OQRS - Online QSL Request System. An OQRS system tries to make obtaining QSL confirmations easier by providing a paperless method for requesting them. Typically, a website is set up to gather QSO information by a web form, or by ADIF log upload. That QSO information is matched against a station's logs, and at the requesting station's preference, paper QSL cards or electronic confirmations are generated.

Intrepid Spirit Award. The Intrepid-DX Group (www.intrepid-dx.com) has announced that Sebastien "Seb" Poulenard, F5UFX is the recipient of the annual Intrepid Spirit Award, made in memory of James McLaughlin, WA2EWE/T6AF (killed in Afghanistan on 27 April 2011). The award - presented at the International DX Convention (Visalia) on 21 April - recognizes Sebastien’s "outstanding efforts” and "unselfish acts" - as well as his "pursuit of operating excellence in assembling the best operators available" - to activate the "challenging and much needed entities" of Juan de Nova Island (FT4JA) and Tromelin Island (FT4TA) "on behalf of a grateful Global DX Community".

Results of the 2016 CQ World Wide DX SSB Contest have been posted (PDF) https://www.cqww.com/results/2016_cq_ww_dx_ssb_line_scores.pdf. If you entered the contest, did you look at your Log Check Report (LCR)? Thank you for submitting a log in the 2016 CQ WW DX SSB Contest. Your log checking report is below. We believe it is helpful for participants to receive information on how their log was scored.

Log checking details for CQ WW SSB 2016:

7,573 Logs total

3,458,751 QSOs total

2,862,882 (82.8%) QSO checked against another log

2,780,827 (97.1%) QSO checked good when checked against another log

45,296 (1.6%) Busted calls

8,582 (0.3%) Busted exchange

28,177 (1.0%) Not in log

Average Score Reduction for all logs: 12.1% (Median 8.0%)

Average Error Rate for all logs: 3.7%

It's impressive that 83% of all QSOs were cross-checked, and the overall error rate was just 2.9%.

Israel, 4X. 4X69 and 4Z69 are special prefixes for local operators to use between 19 April and 10 May to celebrate the 69th anniversary of the establishment of State of Israel. Active on the bands over the past couple of days were Amir, 4X6TT as 4X69TT (QSL via LoTW) and Ros, 4Z5LA as 4Z69LA (QSL via home call).

Switzerland, HB. Special event station HB600NVF is active until the end of 2017 to mark the 600 years since the patron saint of Switzerland Niklaus von Flue was born. QSL via Andy, HB9JOE.



VHF+ UHF+ MICROWAVE NEWS by Mike Bosch ZS2FM 9 April 2017 

# Link to SARL VHF, UHF & MICROWAVES DX TABLE Click here 

LONG DISTANCES COVERED IN ZS ON VHF & ABOVE – During the peak of the Solar Cycle worldwide DX can be worked on 50 MHz (6 metres) around equinox time. TEP DX is possible between Europe and South Africa for most of the Solar Cycle before it also disappears. All these modes are seasonable and not very reliable. However, worldwide DX on EME can be worked almost daily on VHF, UHF, SHF and EHF, whenever the Moon is visible and not too close to the Sun. This also applies to amateur satellites and the height of their orbits during low elevation passes, when distances of about 8000 km have been achieved. 

There is one common mode present on the VHF, UHF and SHF bands, and success will depend on the efficiency of your equipment. It is Tropo Ducting that could appear throughout the year when weather conditions are favourable, and could create some very strong signals at times. The 144 MHz (2 metre) band is the most efficient on Tropo Ducting as the duct size normally favours this band. The current South African record stands at 3 247 km and the world record is close to 5000 km and could be extended across the Atlantic and Indian Oceans. The RSA records for the bands above are: 432 MHz – 2875 km, 1,3 GHz – 422 km, 2,3 GHz – 198 km, 5,7 GHz – 151 km, 10 GHz – 299 km and 24 GHz – 56 km. All the South African records can be improved a lot if someone who is dedicated would only take the trouble to do so. Radio astronomy has discovered a long time ago that if you wish to pick up the weakest radio emissions from deep space then you need BIG antenna systems. Radio amateurs could learn from this and build high gain horizontal Yagis, especially for 144 MHz and establish new world records! 

AIRCRAFT SCATTER CAN PROVIDE DAILY LONG DISTANCE CONTACTS – The longest distance ever recorded in the USA of radio reflection from Aircraft was 1300 km. Normally two-way contacts on Aircraft Scatter are around distances of 800 km or so. The Krugersdorp ZS6JON beacon on 50,050 MHz CW has regularly been observed on the WSJT waterfall in Port Elizabeth over a distance of 900 km, whenever a plane travelling from PE to JHB crossed the midpoint north of the Orange River. On a few occasions a plane flying from West/East produced an Aircraft Scatter signal from Krugersdorp and when it started to fade out, while at the same time a signal began to fade in on the ZS6TWB beacon on 50,044 MHz CW from Polokwane, 1178 km from Port Elizabeth. The VK’s suggested that Aircraft Scatter from high flying aircraft at 43 000 ft (about 13000 metres) could on occasions be enhanced by high elevation Tropo Ducting and extend the total range by several hundred kilometres. This could explain the record-breaking contact on 50 MHz digital via Aircraft Scatter, which was established over a distance of 1290 km by ZS1AX and ZS6OB during a PEARS VHF/UHF contest.  At that time of day there were many planes flying on the flight path between Cape Town and Johannesburg, and there were a minimum number of minor meteors around. Aircraft Scatter is another mode that radio amateurs could explore especially during the approaching winter months.

SOME REMARKABLE ACHIEVEMENTS ON MICROWAVES – Rex Moncur VK7MO in Tasmania worked VK3HZ on 10 GHz (3 cm) Aircraft Scatter over a distance of 903 km. Then VK7MO made an EME contact with OK1KIR on 24 GHz (1,2 cm) over 16 348 km, and later established a world EME record of 17 464 km on 24 GHz EME with G3WDG and G4KGC. Rex also managed to extend the 10 GHz (3 cm) record to 2793 km on JF4f digital with VK6DZ via Tropo Ducting. KH6/N6NB in Hawaii worked W6IT on both 2,3 GHz (13 cm) and 3,4 GHz (9 cm) bands SSB over a distance of 4024 km via Tropo Ducting. A new distance record of 215 km was established on 47 GHz (63 mm) between USA (N1JEZ & KT1J) and Canada (VE2UG & VE3FN). AD6IW on Mount Lassen and KF6KVG on Mount Diabolo in California, USA, set up a new record of 289 km on 77 GHz (39 mm).   

 

MOLONGLO RADIO TELESCOPE IN VK DETECTS 3 NEW FAST RADIO BURSTS – The Australian National University, Swinburne University of Technology, has confirmed detection of three of these Fast Radio Bursts (FRBs) with the Molonglo radio telescope 40 km from Canberra, and proved that it really do come from outer space. Fast Radio Bursts present one of modern astronomy’s greatest mysteries; what or who in the Universe is transmitting short bursts of radio energy across the cosmos? The Molonglo telescope has a huge collecting area (18,000 square metres) and a large field of view (eight square degrees on the sky), which makes it excellent for hunting for fast radio bursts. Discovered almost 10 years ago at CSIRO’s Parkes radio telescope, Fast Radio Bursts are millisecond-duration intense pulses of radio light that appear to be coming from vast distances. They are about a billion times more luminous than anything we have ever seen in our own Milky Way galaxy.


CONTEST NEWS WITH ZS6C Updated 7 April 2017 

South African Radio League QRP Contest: Aim: The QRP contests are intended to be fun activities to promote QRP operation be-tween radio amateurs. Dates and times: Autumn – from 12:00 to 15:00 UTC Saturday 8 April 2017. General Info: Modes: SSB and CW. Power: 5 watts (PEP) output or less. A station may be worked once per band per mode. Frequency: The first hour is limited to the 40 m band only, the remaining two hours the contesters are free to use any HF (non-WARC) band as they see fit. Comply with the contest-preferred segments as detailed in the general rules. It would be advantageous to use the standard QRP calling frequencies as the starting point.  Exchange: RS(T) and Grid locator.  See Blue Book for more details

JAPAN INTERNATIONAL DX CONTEST : OBJECTIVE: For amateurs around the world(DX) to contact JA stations in as many JA prefectures + JD1 islands as possible.  CONTEST PERIOD:  CW Start Sat. 0700 -Sun. 1300UTC. 2nd full weekend of April. BANDS: 1.8/3.5/7/14/21/28MHz (JAs on 1810-1825 & 1907.5-1912.5KHz). CONTEST EXCHANGE:  JAs   : RS(T) + Prefecture number(01 to 50) - Others: RS(T) + CQ Zone number. http://www.jidx.org/jidxrule-e.html

The Yuri Gagarin International DX Contest:   Date: from 21.00 UTC on April 08th till 21.00 UTC on April 09th, 2017. Bands: 1.8, 3.5, 7.0, 14, 21, 28 MHz and radio amateur satellites. Modes: CW only. Contest Call: (CQ Gagarin Cup). Exchange: RST and ITU zone number. http://gc.qst.ru/en/section/32

HOLYLAND CONTEST: Date: Friday 14 of April 21.00UTC - Saturday 15 of April 2017 21.00UTC. Aim: To promote contacts between Radio Amateurs around the globe and Israeli Hams. Modes: CW; SSB; Digital; MIX. (Mixed = minimum 2 modes). Bands: 1.8, 3.5, 7, 14, 21, 28 MHz. Exchange: Worldwide stations send RS(T) + QSO number starting with 001. Israeli stations give RS(T) and 'Area'. http://www.iarc.org/iarc/#HolylandContest

INTERNATIONAL YUDX HF CONTEST: Objectives: Developing traditional friendship between foreign and local hams. Contest Period: Third full weekend of April, from 12.00 UT Saturday to 11.59 UT Sunday (April 15-16 in 2017). Participants: Any licensed non-YU amateur radio station.

Bands: 80, 40, 20, 15, 10 meters under the recommendations of IARU Region 1. Modes: CW (A1A) and SSB (A3J). CQ calling practice: CQ YU or TEST YU. Contacts: Any participant with any participant. Only one QSO with the same station is counted per band and mode. Exchange: Non-YU stations: RS(T) + QSO number. YU/YT stations: RS(T)+County Abbreviation. http://www.yudx.yu1srs.org.rs/2017/INTERNATIONAL_YUDX_HF_CONTEST.pdf

SPDX RTTY Contest:  Contest Period:   12.00 UTC Saturday , through 12.00 UTC Sunday. Bands:                 3,5 - 28 MHz without WARC bands. Mode: RTTY. Message: Foreign station  send : RST & QSO Number. (599001), Polish station transmits : RST & one letters denoting the province (B,C,D,F,G,J,K,L,M,O,P,R,S,U,W,Z ). https://pkrvg.org/strona,spdxrttyen.html

SARL Forum Active Topics
Ruining space with thousands of tiny satellites 
 1  2
28/04/2017  21:25:08
by: ZS1AU
Kom gesels saam op 5260 USB  28/04/2017  20:22:04
by: ZS1TR
Proxies for the SARL AGM  28/04/2017  20:02:11
by: ZS6COL
Electronic Callbook update  28/04/2017  19:51:06
by: ZS6COL
CALLING ZS2EZ OM BARRY.  28/04/2017  17:49:03
by: ZS6A
ICASA Amateurradio licenses cancelled 
 1  2  3  4  5
28/04/2017  17:02:18
by: ZS1AU
South African Radar in the Overstrand in World War  28/04/2017  14:34:59
by: ZS6BV


Commercial Hamads 


ZS2BL's S.A. HAMSHACK

Direct importer of a wide selection of SWR meters, H.F., V.H.F. and U.H.F. base and mobile antennas. Amateur radio transceivers, antenna analyzers, etc. Affordable shipping costs for out of town customers and subsidized shipping to SARL members. Check out all my amateur radio goodies here. 0720268909.

 

Light Engineering Works

General engineering, part remanufacturing  turning, milling, drilling.Specialised welding of steel, stainless steel, aluminium and cast iron.Gear repair and remanufacturing.Prototype industrial and automotive  parts and brackets made to specification,  Heavy duty antenna support and Mobile brackets including standoff brackets and antenna parts manufactured.Tower and tower part repairs also undertaken. Contact Willie Wright ZS6WC.0823351356. zs6wc@vodamail.co.za

 


Place your commercial hamads on the home page.  Book a six months space for R300 or 12 months at R500 prepaid with order   The advertisements will be  text only up to 60 words including address, telephone number and click through URL to advertisers' website and email address. Adverisement can be changed  Send your contact details to admin@sarl.org.za and we will contact you or call the NARC at 011 675 2393


What is Amateur Radio ? 

Tell me more  about Amateur Radio

Radio Amateurs, or "Hams" use two-way radio communication to make contact with other radio amateurs all over the world. They are even able to use satellites and on occasion speak with astronauts. Radio Hams can do this from home or while mobile in cars, boats or on foot.

Radio Hams have a full range or communication modes at their disposal. These include plain voice, Morse code, numerous digital computer modes and even graphical modes like television. As a licensed amateur radio operator you will be able to join in experiments using all these modes.

A
mateur radio can be enjoyed by young and old, male and female, even the most severely disabled can make friends around the world from their own home. This hobby knows no boundaries.


Random Photo from the Call book.


 Andrew Perrins, ZS1SBM


     



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This advertisement is sponsored by the SARL in the interest of the development of amateur radio





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Conical Technologies

Worked All ZS award
An interesting operating goal

The entry level for the WAZS award is 100 different call signs. The programme has recently been expanded to include higher level endorsements, such as WAZS-200, WAZS-300, etc. Endorsements may also be obtained for specific modes, eg: CW, SSB, etc.
Click here for more information...
 


lboat034a.gif (1979 bytes)SA Maritime Net

The South African Maritime Mobile Net provides weather reports and maintains contact with sailing vessels from around the coast and high seas.
The net operates 7 days a week.

There are two regular schedule times as follows:

  • 06:30 UTC and 11:30 UTC on 14 316 kHz high seas net.
  • 06:35 UTC and 11:35 UTC on 7 120 kHz coastal net - the net lasts approximately 30 minutes .

 
   

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This page last modified: 4/2/2017