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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


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 July 2017

SARLNUUS  met Irene Myburg ZS6IEA   luister/laai hieraf 

SARLNEWS  with Rory Norton ZS2BL download/listen here 

AMATEUR RADIO TODAY with Hans van de Groenendaal ZS6AKV  listen here or visit the Amateur Radio Today page with more details and download links  here 

GEOMAGNETIC UNREST: Earth is entering a stream of solar wind flowing from a hole in the sun's atmosphere. This is causing geomagnetic unrest around the poles. High-latitude sky watchers should be alert for auroras on July 21st, especially in the southern hemisphere where winter darkness favors visibility. Free: Aurora Alerts

CME SWEEPS ASIDE COSMIC RAYS: On July 16th, a CME hit Earth's magnetic field, sparking two days of geomagnetic storms and beautiful southernauroras. The solar storm cloud also swept aside some of the cosmic rays currently surrounding Earth. and the students of Earth to Sky Calculus launched a space weather balloon to the stratosphere hours after the CME arrived. We detected a 7% decrease in X-rays and gamma-rays (two tracers of secondary cosmic rays). Neutron monitors in the Arctic and Antarctic recorded similar decrements. For instance, these data from the Bartol Research Institute show a nearly 8% drop in cosmic ray neutrons reaching the South Pole:

This is called a "Forbush Decrease," named after physicist Scott E. Forbush who first described it in the 20th century. Wherever CMEs go, cosmic rays are deflected by magnetic fields inside the solar storm clouds. As a result, when solar activity is high, cosmic radiation around Earth is relatively low--a yin-yang relationship that holds throughout all phases of the solar cycle.

Lately, cosmic rays around Earth have been intensifying as the solar cycle plunges toward minimum. The CME of July 16th reversed that trend--but only for a few days. Solar activity has returned to low levels and cosmic rays are on the rise again.

Why do we care about cosmic rays? For one thing, they penetrate commercial airlines, dosing passengers and flight crews so much that pilots are classified as occupational radiation workers. Some research shows that cosmic rays can seed clouds and trigger lightning, potentially altering weather and climate. Furthermore, there are studies ( #1, #2, #3, #4) linking cosmic rays with cardiac arrhythmias in the general population.


ICASA Licensing Matters - The SARL is aware of members who are having trouble in resolving their various licensing issues, especially in the case of a cancelled licence. The League is more than willing to assist members but could only do so if the following basic information in the case of cancelled licences is provided: 

A copy of their communication/s with ICASA.

A copy of their latest licence.                                

A copy of the payment/s made subsequent to this latest licence.

A completed ICASA Application Form

A copy of their Identity Document

Proof of payment for the re-application fee.

Original RAE results or HAREC certificate

In the case where a member has paid for a multiple year licence (2 years to 5 years) and has only received a one-year licence, the following information must be provided:

A copy of their communication/s with ICASA.

A copy of the payment made for a multiple year licence.

Please forward your request for assistance, including all the documentation, to Use your call sign and licence number as a topic in the e-mail.

Please refer to the following document for comprehensive information pertaining to licensing at and select the document “ICASA Amateur Radio Licences General Information V2”

Interview with the IARU President - International Amateur Radio Union IARU) president Tim Ellam, VE6SH, talks with ARRL Media and Public Relations Manager Sean Kutzko, KX9X, at Hamvention 2017. Tim explains what the IARU is, how IARU's work affects every radio amateur in the world, and why hams should pay attention to the events within their own IARU member society. Watch ARRL Hamvention 2017: IARU President Tim Ellam, VE6SH

The 2017 IARU Region 1 General Conference - Papers for Committee 3 (Administration), Committee 4 (HF), Committee 5 (VHF/UHF) and Committee 7 (EMC) have been uploaded to the Landshut Conference page at

The papers are in zipped files ready for download. Also available on the Conference page are the Nominations for the Executive Committee as received by the Region 1 Secretary on 17 June 2017.

SARL Fund for Disaster Victims

I am pleased to announce that Council have decided, on short notice, to establish an independent General Disaster Trust Fund to assist fellow radio amateurs who have suffered because of natural disasters. In a nutshell, this general disaster fund will be administered by independent trustees and not by Council.

The trustees in no specific order are Gary Immelman, ZS6YI, Louw Erasmus, ZS6LME, Cliff Smyth, ZS6BOX, and Rassie Erasmus, ZS1YT.

Trustees will have absolute discretion how funds for the current and for future major relief situations are to be utilised.

This is an open and honest initiative from Council to establish a fund for the current and for future major relief situations to assist in extra ordinary circumstances and not ordinary charity circumstances.

Contribution can be paid into: Erasmus Incorporated Trust Account ABSA Bank, Account no 4049478830

Please use your callsign as reference or should you prefer to contribute anonymously use the word “Disaster Fund” as reference”

The thread “SARL Fund for Disaster Victims” on the Forum will be used for reporting progress, acknowledge payments and for announcements. Please note that no general chatter will be allowed, especially negative remarks or criticism of any kind.

Many thanks for your generous support and understanding with this initiative.

73, Nico, ZS6QL, SARL President 

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

ICASA is not oblighed to send out invoices.  For full details on licenecs and payment click here


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 To advertise on the League web site, contact Hans, ZS6AKV at

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 with a copy to

HF Update with Dennis, ZS4BS 22 July 2017 

Get your weekly copy of HF Happenings at

RAC 150 Award. To commemorate Canada’s 150th anniversary since Confederation in 1867, Radio Amateurs of Canada presents the RAC 150 Award programme for contacting the special RAC stations between 1 July and 31 December 2017: VA2RAC (Quebec), VA3RAC (Ontario), VE1RAC (Nova Scotia), VE4RAC (Manitoba), VE5RAC (Saskatchewan), VE6RAC (Alberta), VE7RAC (British Columbia), VE8RAC (Northwest Territories), VE9RAC (New Brunswick), VO1RAC and VO2RAC (Newfoundland and  Labrador), VY0RAC (Nunavut), VY1RAC (Yukon) and VY2RAC (Prince  Edward  Island). Complete information can be found at

Iceland, TF. Special station TF15MOOT will be active during the 15th World Scout Moot, which will take place in Iceland from 25 July to 2 August. QSL via TF3VD.

Somoa, 5W. Roly, ZL1BQD will be active as 5W0RR from Samoa (OC-097) from 26 July to 15 August. He will operate mainly JT65 and possibly the new FT8 mode. QSL via ZL1BQD.

Italy, I. Special callsign II2XC will be active until 31 December to celebrate the 90th anniversary of Associazione Radioamatori Italiani (ARI). QSL via the bureau.

Russia, UA. R17CWC and many "17CW" special call signs will be active from 22 July to 6 August during the Russian CW Club's Telegraph Marathon. Information on the award programme can be found on

Sweden, SM. SC40VIC celebrates the 40th birthday of Crown Princess Victoria and is active until 31 December. QSL via SM6JSM, direct or via the bureau.

As mentioned in the SARL News, the annual RSGB Islands on the Air Contest runs from 12:00 UTC on Saturday 29 July to 12:00 UTC on Sunday 30 July with phone and CW operation on 80 to 10 m. The exchange is a RS or RST report and a serial number starting from 1, plus an IOTA reference number if applicable. Find all the information at

Looking at the various DX Bulletins, there will be a lot of activity from islands in the northern hemisphere. The winter conditions in South Africa are not favourable for visiting the few islands around our coast and I understand that to get to certain islands, there is a lot of red tape!

The International Lighthouse and Lightship weekend is coming up in August and to date South Africa has 11 lighthouses registered.

The Boland ARC are going to Cape Agulhas lighthouse, the Cape Town ARC are going to Green Point lighthouse and the Fish Bay Radio Club will be at Slangkop lighthouse. The Overberg ARC will be at Danger Point lighthouse.

In the Port Elizabeth area, Andrew, ZS2G, will be at Cape Recife Lighthouse, PEARS will be at the Seal Point lighthouse in Cape St Francis and the Hammies, ZS2ZU will be the Donkin reserve. The Great Fish lighthouse will be activated by ZS4BS.

In KZN, the Highway ARC will be at Green Point lighthouse (there are two Green Points), the Hibiscus Coast ARC will be at North Sand Bluff lighthouse and the Durban ARC will be at Cooper lighthouse.

Have a look at page 10 to 18 of the July Radio ZS to get information about all the lighthouses around the coast and get you club registered for ILLW.

VHF+ UHF+ MICROWAVE NEWS by Mike Bosch ZS2FM 23July 2017 


RADIO AMATEURS ALREADY EXPLORED THE UNKNOWN SPECTRUM ABOVE 400 GHz – Radio Amateurs in Germany and USA were the first to pioneer communications above 400 GHz on the sub-millimetre wavelengths. The first-ever pioneering records established on these micrometre wavelengths over line-of-sight distances were done with less than 1 milli Watt. They were:

411 GHz (730 micrometres)
DB6NT & DL1GIN, SSB – 50 metres


403 GHz (744 micrometres)
WA1ZMS & W4WWQ, CW – 1,4 km

322 GHz (931 micrometres)
WA1ZMS & W4WWQ, WBFM –1,4 km

The World Radiocommunication Conference 2019 (WRC-19) is considering new allocations in the 275 GHz to 450 GHz spectrum with its lower atmospheric attenuation for land-mobile and fixed services. The IARU feels that we have already staked our claim as the earlier WRC-15 has already recognized the presence of the amateur radio service operation above 275 GHz. 

The top end of the microwave spectrum overlaps into the Deep Infrared spectrum, but are separated by a narrow Terahertz gap covering 300 GHz to 3000 GHz (3 THz), i.e. a wavelength from 1 – 0,1 mm (100 micrometres). It manifests very unusual characteristics, such as X-ray qualiities wihout any dangerous radiation, detect pipes in concrete, see through walls, and it will form part of the new allocations.

UNEXPECTED VHF OPENING ALONG EAST COAST – “Hi again from E.L. Last night (Monday sked night on 144,300 MHz) the Hepburn Charts looked blank and black along the entire East Coast. I did not expect a contact. At 20:00 CAT I called Dave ZS5DJ and he came back straight away, giving me a 5/2. We had a QSO on and off for just over 3/4 of an hour. I went up to a 5/5 for one short period. We had to put up with a lot of static that sounded just like machine gun rapid fire. It must have been the Sun’s Solar Wind hammering us, Hi. 73 Peter ZS2ABF.” 

A MAJOR METEOR SHOWER IS PEAKING THIS COMING WEEKEND – The Southern Delta Aqurids shower is peaking around 30 July and favours the southern hemisphere. It will appear after midnight and be present until 23 August 2017 making possible digital contacts on 50,70 and 144 MHz, as well as SSB on 50 MHz. 

MICROWAVE IN EUROPE – The German magazine, DUBUS, mainly covers microwave operation and the construction of equipment for the microwave bands. It reports microwave events throughout the world but mainly concentrates on Europe. It is quite amazing to see so many photos of European microwave amateurs displaying their dish antennas for 10 GHz (3 cm) up to the higher microwave bands, and actually making long distance contacts. Microwave activity in South Africa came to a dead stop since the retirement of Ivo Chladek ZS6AXT

Scientists at the Arecibo Telescope in Puerto Rico are baffled by the peculiar signals coming from the red dwarf star Ross 128 and its accompanying planets. In hopes of solving the mystery, the researchers announced this week that they plan to watch the rust-coloured star on Sunday, July 16, which at less than 11 light-years away, is one of the closest stars to our solar system. The researchers picked up the strange signals during a campaign to specifically observe the radio signals being emitted by red dwarf stars, whose longevity is a 1000 times that of our Sun, might give primitive life a good shot at developing on one of the star’s nearby planets, should they orbit in the red dwarf’s habitable zone.

The Arecibo Telescope is capable of picking up extremely dim and nuanced cosmic signals that most other radio telescopes cannot, and in this case, the scientists captured 10 minutes of signals they think are unique to Ross 128, and whose “quasi-periodic” pulses are unlike any from the other red dwarf stars they’ve observed so far. The researchers offered three potential explanations for the signals — aliens not included. Each of the possible explanations has their own problems. This lack of satisfaction with the simplest rationalizations left them without a hypothesis they found acceptable. Now the answer turned out to be weird signals from a distant geostationary satellite!


CONTEST NEWS WITH ZS6C Updated 10 July 2017 

DMC RTTY Contest: Start:  Date: 12:00 UTC -Saturday 15 July 2017, End: 12:00 UTC -Sunday 16 July 2017. Bands: 80, 40, 20, 15, 10 meters. Exchange: Signal report + serial number, starting 001.

The 2017 CQ World-Wide VHF Contest: Date: Begins: 1800 UTC Saturday, July 15, 2017, Ends: 2100 UTC Sunday, July 16, 2017. Contest Period: 27 hours for all stations, all categories. Operate any portion of the contest period you wish.  Objectives: are for amateurs around the world to contact as many amateurs as possible in the contest period, to promote VHF, to allow VHF operators the opportunity to experience the enhanced propagation available at this time of year. Bands:  All amateur radio frequencies on 50 MHz (6 meters) and 144 MHz (2 meters) may be used as authorized by local law and license class. Exchange: Callsign and Maidenhead grid locator (4 characters, e.g., EM15). Signal reports are not required and should not be included in the log entry.

SARL QRP Contest:  Aim: The QRP contests are intended to be fun activities to promote QRP operation between radio amateurs. Using homebuilt equipment or operating as a portable/field station and using temporary antennas is encouraged, but is not a requirement. Dates and times: from 12:00 to 15:00 UTC Saturday 15 July 2017, General Info: Modes: SSB and CW, Power: 5 watts (PEP) output or less, A station may be worked once per band per mode. There are no antenna restrictions. Frequency: The first hour is limited to the 40 m band only, the remaining two hours the contest- ers are free to use any HF (non-WARC) band as they see fit. (See Blue Book for details)

ZS2 Sprint:  Aim: This is a fun activity to promote contacts between radio amateurs in the Eastern Cape and radio amateurs in Southern African countries. Date and Time: 14:00 to 15:00 UTC Sunday 23 July 2017. Exchange: The exchange is RS(T) and provincial or country abbreviation. Frequency: It is a phone and CW contest on the 40-metre band CW: 7 000 to 7 040 kHz, SSB: 7063 to 7 100 and 7 130 to 7 200 kHz. (See Blue Book for details) 

RSGB IOTA Contest: Objective:   To promote contacts between stations in IOTA island groups and the rest of the world, and to encourage expeditions to IOTA islands. Date & Time: 29th - 30th July 2017 12:00 - 12:00 UTC. Frequencies and Modes: 3.5, 7, 14, 21 and 28 MHz CW and/or SSB. Exchange: World Stations send RS(T) and serial number starting from 1, Island Stations send RS(T) and serial number starting from 1, plus their IOTA Reference. If you are not sent a serial number, log a zero.

SARL Forum Active Topics
Mobile and field day antenna 
 1  2
24/07/2017  21:17:03
by: ZS1ABU
Special event licence.... how?  24/07/2017  21:12:34
by: ZS6DEZ
Cape Town APRS down?  24/07/2017  20:39:50
by: ZS5CEY
Joomla content management system  24/07/2017  15:18:19
by: ZS1PHD
Programming a Kenwood TK-7302 [Solved]  23/07/2017  22:00:35
by: ZS6GKR
Moon bounce - Trying to contact X  23/07/2017  21:40:48
by: ZS1PHD
Gekanseleerde lisensie 
 1  2  3
23/07/2017  20:18:40
by: ZS6COI

Commercial Hamads 


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.


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 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.

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.

 Unknown Callsign, ZS4IQ


CDS Advert 


 Click here to visit website 

Conical Technologies


 Click here to go to the Kevtronics web 

Sam's Radio 


Call us on us 082-974-8248 or 84-585-8563 

RF Design

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: 16/5/2017