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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


Notice of a Special General Meeting

A request for a SGM has been received by the SARL Council. The SGM will take place from 09:00 on Saturday 14 April 2018 at the Farm Inn Country Hotel and Wildlife Sanctuary in Pretoria.

Read more on the AGM Information Page 

The Boys are back from Bouvet

Watch the Ham Nation episode 339 

ICASA Licence Fees - DO NOT pay the ICASA licence fee into the SARL bank account, all moneys wrongfully paid into the SARL account will be refunded less the bank charges associated with these transactions.

The correct account for your ICASA Licence Fee is NEDBANK Account number: 14 62 00 29 27 , Branch Code: 146245 - Corporate Client Services – Pretoria and in the reference field type in your licence number and callsign.

Bouvet Island team in Cape Town - On Saturday 17 February 2018, the 3Y0Z team arrived at Cape Town harbour after their long voyage up from Bouvet Island on the m/v Betanzos. They were greeted by local ZS  amateurs on a ketch that sailed out from the Yacht Club to greet them. On Sunday the Cape Town Amateur Radio Centre (CTARC) memb

ers met the 3Y0Z team at a hotel in Strand Street and started ferrying them across to the Royal Cape Yacht Club for a farewell function before they  departed for home. The Dxpediton was aborted due to poor weather condton and engine problem with the m/v Betanzos. (For more click here) Top picture Nico van Rensburg ZS6QL, SARL President, in conversation with  Erling LA6VM.

The Bouvet Island DXpedition team in Cape Town


Amateur Radio Today and SARL NEWS

Listen to  these programmes on line or download to retransmit on local nets, a SARL service to Radio Amateurs. Get the transmission schdule here .

Sunday 18 February 2018

SARLNUUS Irene Myburg ZS6IEA  luister hier/laai af

SARLNEWS Rory Norton ZS2BL download/listen here 

AMATEUR RADIO TODAY with Hans van de Groenendaal ZS6AKV listen here or for more details click here 

AMSATSA and HARC to hold SDR workshop in DurbanThe Highway Amateur Radio Club will be hosting a SDR workshop in Durban on 3 March 2018 lead by Anton Janovsky ZR6AIC. Dongles and  memory sticks with software can be pre-ordered and will be deliverd at the workshop.  For full details and an order form click here. The closing date is 23 February.

February 2018 Radio ZS

The February 2018 issue of Radio ZS can be downloaded.


PARC hosts the 2018 SARL National Convention

Relaying Amateur Radio Today

The Year When Digital Modes Changed Forever

Ring-rigstraler vir satelliet kommunikasie

Switches, Part 2

Co-Launched CubeSats Settling into Orbits

The Archduke of Austria was a Radio Amateur

VHF, UHF, SHF and EHF News

Secretive "Numbers Stations" Persist on HF

The “Largely Plastic" 2 m Antenna

The Museum Piece

History of Amateur Radio, part 7

Two Band Quad Loop Antenna

Bill Brown, WB8ELK: Master of High-Altitude Balloon Projects

CQ Contest - Februarie/February

So, you want to build a magnetic loop?

Homebrew APRS – Arduino Uno KISS TNC

Five Band Indoor Magnetic Loop Aerial

What is Amateur Radio?

Back page 

2018 ARRL HANDBOOK -  The Handbook has been extensively updated, and includes significant new content. Each chapter has been authored and edited by experts in the subject.

For the new ham…you will be amazed at how quickly you become familiar, not only with the theory, but also with the practical aspects of radio – from long waves to microwaves. 

For the experienced ham…you’re in for a surprise and delight when you see the extent of the latest revisions. This edition is the most comprehensive revision since the 2014 edition.“ For more  details click here. Only 5 copies available

Amateur Radio License fee increase

-ICASA has informed the SARL that the licence fee will be increased by 5.3% on 1 April 2018. The new fees will be 

1 Year   -              R 141.00

2 Year   -              R 269.00

3 Year   -              R 386.00

4 Year   -              R 492.00

5 Year   -              R 588.00  

ICASA will start the invoicing process for the 2018/2019 period from 5 February 2018. Radio Amateurs are reminded that it is their responsibility to ensure their license is up to date. If for some reason no invoice is received, check that ICASA has been informed of any address changes. 

Avoid the hassles of having to renew each year, opt for a multi-year licence. Simply, when renewing pay the appropriate amount. On the EFT state 5 Year licence and your callsign. Also send an email to with a copy of the EFT payment.

PRETORIA AMATEUR RADIO CLUB TO HOST THE SARL NATIONAL CONVENTION 2018The Pretoria Amateur Radio Club will be presenting the 2018 SARL National Convention at the Farm Inn Country Lodge ( at Silver Lakes in Pretoria East over the weekend of 13 to 15 April. The Club will be hosting a large flea market on Saturday 14 April with various other stalls and exhibits.

2018 Advertising in Radio ZS and the SARL Web siteRadio 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 and Radio ZS Strip advertisement (10 cm by 2 columns) - 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

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 16 February 2018 

Get your weekly copy of HF Happenings at 


"Awesome" Activity for the 2018 ARRL International Grid Chase "On-the-air activity for the 2018 ARRL International Grid Chase (IGC has been awesome!" ARRL Contest Branch Manager Bart Jahnke, W9JJ, said this week. "The year also began with DXpeditions, as well as several contests at both HF and VHF, to boost numbers. Facebook and social media (Facebook, Twitter #ICG) are abuzz with chatter about the event, the excitement, the grids worked." 

Jahnke said the statistics show the highest overall activity on 40 and 20 metres, not surprising in the winter and especially strong digital activity. He expects phone and CW activity to perk up this month and next with the ARRL International DX Contest CW weekend on 17 and 18 February and the phone weekend on 3 and 4 March. He also anticipates that February's statistics will come on strong as participants re-work January grid squares to boost their February scores. As of the January activity upload deadline of 10 February 10 at 23:59 UTC, some 23 300 station sites were active in the IGC.

"The leader board reporting system continues to evolve, with much helpful participant feedback," Jahnke said. That user input is improving how ARRL reports participation

"From the statistics, it's clear that during this period of low sunspots and low winter E-skip and F2, most of the activity on the mid-to-lower bands is digital modes," Jahnke said. "As we get into the summer E-skip season, we expect to see activity above 15 metres begin its ascent in the totals."

Jahnke said it is apparent that participants are taking advantage of CW (and FT8 and other digital modes) on HF to overcome some of the weakened propagation on the low- to medium-frequency bands, and of FT8, JT65, and FSK144/MSK144 on 6 metres and above to rack up impressive totals. "Not to be outdone, in comparison to overall band totals, phone contacts on 80, 40, 20, and 17 meters are strong, and 2-metre and 70-centimetre contacts were strong in January as well," Jahnke added. Several contests in January, including the ARRL RTTY Roundup and ARRL January VHF Contest contributed to these strong phone and digital numbers.

During January, IGC-eligible contacts matched in Logbook of The World (LoTW) topped 22 000 on 40 metres and 23 000 on 20 metres, the two bands with the greatest activity, with nearly half the contacts being made on digital modes in both bands. On the new 630-metre band, 31 IGC-eligible contacts turned up in LoTW.


ARRL Announces Mobile DXCC Operating Award

This week, the ARRL announced a Mobile DXCC Operating Award, available to radio amateurs who have contacted at least 100 DXCC entities from a working vehicle, with antennas and power source capable of operating while in motion. ARRL Radiosport Manager Norm Fusaro, W3IZ, advised those pursuing the award to put safety first.

"Distracted driving is a serious concern, so we hope all mobile operators exercise care when operating from a moving vehicle," he said. Full, official details are on the Mobile DXCC Operating Award page.

The Mobile DXCC is a one-time award and is non-endorsable. Contacts made any time in the past do count toward the aware. QSLs are required, but you do not need to submit them. Mobile stations may use any power that is legal in the entity from which they are operating. This award specifically excludes contacts made by aeronautical or maritime mobile stations. You do not have to be an ARRL member to qualify for this award.

Because this award is similar to the QRP DXCC Operating Award, the ARRL has redesigned the QRP DXCC Certificate so that the two awards complement one another. Operators who hold the QRP DXCC award may apply for the new-style certificate with the original date of issue printed on the certificate, but you do not have to re-submit QSL cards or a log. All certificates are $16.


3Y0I Bouvet Island DXpedition Revived

Peripatetic Polish DXpeditioner Dom Grzyb, 3Z9DX, and four other operators announced over the weekend that their postponed plans to mount the 3Y0I DXpedition to Bouvet Island are back on This comes as the 3Y0Z DXpedition team members, who were unsuccessful earlier this month in landing on the remote South Atlantic island, are currently en route to South Africa on their way back home. According to the latest ClubLog DXCC Most-Wanted List, Bouvet is the second most-wanted DXCC entity, behind North Korea.

"Our trip, planned originally at the end of 2017, was cancelled at the request of the organizers of the 3Y0Z expedition," an announcement said. "Due to the cancellation by the 3Y0Z organizers, we are now returning to the implementation of our project and preparations for our trip as a matter of urgency."

DX-World has reported that the 3Y0I license has been renewed and a landing permit, good for 1 year, issued by the Norwegian Polar Institute. While no specific dates for the DXpedition have been announced, the 3Y0I team said its plans call for operating during the sub-Antarctic summer, which suggests they could be on the air late this year.

The 3Y0I team said it has chartered a seagoing yacht adapted for extreme weather conditions to make the 12-day, 2 800-nautical mile trip from South Africa to Bouvet Island. The team anticipates operating for about 2 weeks. The participants have financed the trip out of their own pockets.In addition to 3Z9DX, the 3Y0I operators will include Stanislaw, SQ8X; Leszek, SP3DOI; Branko, YU4DX, and Frans, J69DX.


Z60A Operation Has Moved Kosovo Down the Most-Wanted List a Few Notches

What a difference a week makes! The ongoing Z60A special operation to celebrate the addition of Kosovo to the DXCC List and Kosovo's 10th anniversary of independence appears to have put a big dent in demand for the new entity, which briefly stood at the top of the heap. According to Club Log's DXCC Most-Wanted List as of 14 February, the Republic of Kosovo now is in the #8 position after rocketing into the #1 slot when it became a DXCC entity on 21 January. The #2 and #3 slots are held by Bouvet Island and Crozet Island, respectively, while North Korea is back at #1.

With two stations on the air, Z60A operations are expected to continue through February 19 and will include participation in the ARRL International DX Contest (CW) over the 17 and 18 February. Z60A continues to attract huge pileups. (Z60A may be operating split; listen to the operators' instructions.)

"The departing German/Slovenian team of DJ5IW, DM5TI, DD2ML, and S57AW did a fantastic job while introducing the data modes, RTTY and FT8," said Martti Laine, OH2BH, a long-time supporter of Amateur Radio in Kosovo. "They made up to 10 000 digital QSOs, with the Z60A total now reaching 70 000." The Z60A location at the headquarters of Kosovo's IARU Member Society SHRAK was on SSB mode, helmed by local Z6 operators; the call sign also was active during the CQ World-Wide WPX RTTY event this past weekend.

Local manmade noise continues to hamper Z60A operation. "Many are wondering why it is not possible to eliminate the noise by setting up camp in a quiet open field," Laine said. "The underlying fact is that Pristina is more than 650 meters above sea level and this winter has been particularly cold, with -13 °C temperatures experienced during the activation period."

Considering that Kosovo will remain on the DXCC horizon and that this is the very first activation, Laine added, "Not all noise and other challenges are expected to be resolved." A remote location may be operational within the week, however. Testing indicated "dramatically better" reception than in Pristina.

Laine said the celebratory Z60A operation has served to bring in operators from as many other countries as possible, helping hams in Kosovo to "expand their network of friends." 

Hans Blondeel Timmerman, PB2T, pointed out in the recent edition of the European DX Foundation (EUDXF newsletter that Amateur Radio had been nearly non-existent for more than 25 years and all radio equipment was confiscated. This has created a current need for affordable used gear. "Please consider [donating] one of your spare radios that is only catching dust in your garage," he said. Those wishing to donate to support Amateur Radio in Kosovo should contact Wayne Mills, N7NG,

VHF+ UHF+ MICROWAVE NEWS by Mike Bosch ZS2FM 18 February 2018 2018 


Tutorial 3 – Tropospheric Ducting along the African Coasts

In today’s tutorial Mike Bosch ZS2FM focusses on Tropospheric Ducting

There are around 17 different modes of propagation present on VHF. Most of the strongest signals will appear on 50 MHz, the Magic Band. However, Tropo Ducting excels on the 144 MHz band where currently up to 5000 kilometres can be covered across the Pacific Ocean. Watch the Hepburn Forecasts on for forecast on propagation Ducting conditions over the Atlantic and Indian Oceans south of the equator. 

Propagation via Tropo Ducting exist along the West Coast of South Africa, Namibia, Angola, Zaire, Congo and Gabon, which is from the Equator and further down south. There are two islands well within the range of 3000 km from the African West Coast; they are St, Helena Island and Ascension Island. Currently V51PJ of Namibia and PY1MHZ in Brazil are conducting tests across the Atlantic on 144 MHz Digital. 

On the other side of Africa there is the East Coast of South Africa, Mocambique, Tanzania and Kenya. There are several Islands within the range of 3000 km such as Madagascar, Reunion Island and Mauritius. Reunion Island has been worked from Port Elizabeth over a distance of 3245 km on 144 MHz Digital and from East London on 144 MHz SSB over a distance of 3000 km. 

The greatest challenge that awaits amateurs on VHF is to bridge the Indian Ocean on 144 MHz with a two-way radio contact. The shortest distance between Australia and South Africa is around 8000 km between Perth and Port Elizabeth. 

Next week we will discuss Sporadic-E propagation.  


IN THE 1920’S AMATEURS WERE LICENCED ONLY AS RADIO EXPERIMENTERS – In the 1920’s amateurs were licenced only as radio experimenters, even in South Africa by the PMG. This was the time that amateur radio made its greatest contribution to radio science with the discovery of DX operation on shortwaves. In 1927 the ITU (then known as the International Radiotelegraph Union) at its Conference in Washington, allocated special bands to the five recognized services; Broadcasting, Martime Mobile, Fixed, Mobile and Amateur. The radio amateurs were rewarded with six amateur bands for their pioneering work on shortwaves.  

As time passed so a new breed of radio amateurs started to change the face of amateur radio to that of a hobby where innovation and experimentation were no longer that important anymore. In modern times shortwave broadcasting and other commercial services started to desert the shortwave bands for greener pastures on satellites in the microwave spectrum where signals were more reliable and constant. Amateur Radio now has to play a catchup game if they wish to survive the 21st Century, bearing in mind that the modern generation is very computer literate and SDR would appeal to them, and they only need a type of amateur radio that is more attractive to them. Amateur Radio must make the necessary changes to meet future demands and become part of the new radio world again. Fortunately there are a number of dedicated amateurs in the USA and Germany who are doing some brilliant work on the amateur Microwave bands. 

MICROWAVE UPDATE 2018 – An email arrived from Joe Burke, WA8OGS, asking us to help promote the above event. It will be hosted by the Midwest VHF/UHF Socxiety, and scheduled for 11 – 14 October 2018 at the Holiday Inn Dayton/Fairborn I-675. This is an international conference dedicated to microwave equipment design, construction and operation. Microwave Update is an ARRL technical conference, and ARRL publishes the conference proceedings. Some of the activities include Seminar Presentations, Antenna Gain Measurements, Door Prizes, Test and Measurement Lab, Flea Market, Banquet, Vendor Demo/Sales Area, Tour: Carillon Historical Park, Tour: Voice of America Museum, Tour: US Airforce Museum. Save the date, and make plans to attend, and help spread the word to others who might be interested.      

NASA SCIENTISTS PREDICT THAT WE ARE NOW ENTERING THE MAUNDER MINIMUM WHERE THE GRAND MIMIMUM WILL OCCUR IN 2050 – The Sun has an 11-year cycle where it experiences minimum and maximum activity. Scientists say the Sun may soon experience its grand minimum phase. In this time, UV radiation diminishes beyond the lowest point of its cycle. Researchers have now developed a way to predict just how much the Sun will dim. The scientists say the Sun could become unusually cool as soon as 2050.

In the next 30 years, our Sun could dim significantly, leaving us with conditions that could create a mini ice age. That's according to new research from scientists who say they've figured out a way to track the Sun's 11-year cycle. It's commonly known that the Sun moves through an 11-year cycle where, similar to a heartbeat, it experiences active and quiet periods known as the solar maximum and solar minimum. Now, scientists from the University of California, San Diego, believe they've pinpointed exactly when the next solar minimum could occur, saying the Sun could become unusually cool as soon as 2050. The Sun could experience conditions last seen during the Maunder Minimum, an event in the mid-17th century when temperatures were low enough to freeze London's River Thames.


When the Sun experiences a solar maximum, the nuclear fusion at the Sun's core forces more magnetic loops to the surface, due to extreme ultraviolet wavelengths. Scientists have previously been able to predict when the next solar minimum will occur. In a solar minimum, the sun's magnetism diminishes, fewer sunspots form and less ultraviolet radiation makes it to the surface of the Sun. As a result, the sun's surface is clearer and it becomes dimmer. 


But new data collected over the span of 20 years has helped the team of researchers determine just how much the Sun could dim during the 'grand minimum. During the grand minimum, the Sun is likely to be 7% cooler than the lowest point of its 11-year cycle, according to the scientists. When the Sun's energy is reduced, the first effect it will have on earth is a thinning of the stratospheric ozone layer. That thinning in turn changes the temperature structure of the stratosphere, which then changes the dynamics of the lower atmosphere, especially wind and weather patterns, the study notes. However, the cooling is not uniform. Again, the scientists refer to the Maunder Minimum, during which areas of Europe chilled significantly, but other areas such as Alaska and southern Greenland warmed.  

You could just imagine what effect the Maunder Minimum could have on HF communications, when weak UV radiation can no longer ionize the F-layers properly.

Focus on VHF 11 Feb 2018

In today’s  programme we focus on  reports that the VHF path between Australia and South Africa is still the greatest challenge on 144 MHz and Trans equatorial propagation during the world wide SOTA weekend. But first our weekly tutorial

In our second tutorial we discuss the Ultra High Frequency bands commonly referred to as UHF. They cover the following frequency ranges

432 – 440 Megahertz and known as the 70 centimetre amateur band.

1240 – 1300 Megahertz or the 23 centimetre amateur band.

2320 – 2450 Megahertz or the 13 centimetre amateur band

The first two bands are quite popular in South Africa, whereas the latter is rarely used.

Tropospheric propagation modes such as Tropo Enhancement, Tropo Ducting and Tropo Scatter are still present on these bands. Tropo Ducting that appears when a temperature inversion is formed between 450 to 2000 metres above sea level  in the atmosphere may present a skip distance where signals cannot be received, but it will conduct radio signals over long distances between two points. But if this duct occurs higher than 2000 metres then it could miss the Earth and signals would disappear into space.  

So far only 432 Megahertz and 1296 Megahertz bands achieved communication over distances  aroud 1000 km compared to  distance of 5000 km possible on on the 144 Megahertz band across the Pacific Ocean via Tropo Ducting. The signal strength of radio signals on the UHF bands are normally weaker than those on the VHF bands. The Ultra High frequency bands require more sensitive receivers and higher gain Yagi beam antennas. Fortunately the UHF antennas are a much smaller and shorter than VHF antennas.

Tropo Scatter signals will be attenuated as the frequency rises, therefore the lower frequencies could be better for Tropo Scatter tests. With reference to the 13 centimetre amateur band the top band edge frequency of 2450 Megahertz is ued for microwave ovens.

Next week we will discuss propagation of Tropospheric Ducting along the African coast. Part 1 is now available on the SARL web Amateur Radio Today page. And now for today’s main stories: 

The vhf path between Australia and South Africa is still the greatest challenge on 144 MHz – Many years ago the first attempt was made by Bill Hosie, VK6ACY (now ZS6CCY), near Perth and Mike Bosch ZS2FM  in Port Elizabeth, assisted by Andre ZS2ACP and the late Jim Frans ZS2JF to establish a two-way contact across the Indian Ocean. Mike reports the team turns to transmit CW CQs for an hour or so daily on 144 MHz for a full month, separated by listening periods, without any success. “At that time we did not have the facility of the Hepburn Forecasts to predict Tropo Ducting across the Indian Ocean”’ Mike said

Many years later Keith Bainbridge, VK6RH, spokesman for the West Australian Radio Group tried to interest South African VHF amateurs to participate in their new chirp modulation tests, but the chirp equipment would come at a price. Unfortunately support was not forthcoming so a brilliant amateur radio science project just died.

Recently Andy Hemus at Carine, Western Australia tried to revive interest in a VHF path between VK and ZS. He says that if there is a VHF path from Eastern Australia to LU, VP8, CE etc, then here must be a VHF path between Western Australia and the East Coast of South Africa too. Who would like to take up the challenge?

Guru EA2IF is arranging a Trans-Equatorial Propagation (TEP) Sota Weekend for 6 ,10, 12 and 15 metre bands. Any mode is allowed. The events are planned around the equinoxes of 21 March and 21 September 2018. The first event is scheduled for Monday 19 March and ending on Sunday 25 March 2018. The ideal times for afternoon TEP will be from 15 to 19 hours local time. For VHF-UHF enthusiast and night activations there will be an opportunity to explore the evening TEP for which ideal times will be from 20 to 23 hours local time. There won’t be any problem with contacts made out of the mentioned bands and time window. This is not a contest with strict rules, so total freedom for anyone trying whatever they  wish, as long as it respects the others and the country regulations. Read more on the SAL web.

Peter ZS2ABF reports from East London about the coastal ducting on the night of 5th February. He, John ZS2AH,  end Dave ZS5DJ had a great QSO that lasted for three quarters of an hour. QSB was again present, but generally conditions were very good. Signal strengths of 5-9 were received. Dave and Peter also switched over to the FM for a while, and due to the QSB  they  switched back to USB after a short QSO. At one stage Dave thought he could hear another very weak station trying to break in but due to the QSB the signals  seemed to  have disappeared.The following night Dave's signals never went above S-0. Dave heard Peter at S3 to 5 with QSB. Dave's Mast Head Pre-amp once again proved that it gave him a real advantage.

NASA’s 883 GHz ICE MAP – A bread loaf-sized satellite has produced the world’s first map of the global distribution of atmospheric ice in the 883 GHz band, an important frequency in the submillimetre wavelength for studying cloud ice and its effect on Earth’s climate. IceCube—the diminutive spacecraft that deployed from the International Space Station in May 2017—has demonstrated-in-space a commercial 883 GHz radiometer developed by Virginia Diodes Inc of Charlottesville. It is capable of measuring critical atmospheric cloud ice properties at altitudes between 5 and 15 km.

NASA scientists pioneered the use of submillimetre wavelength bands, which fall between the microwave and infrared on the electromagnetic spectrum, to sense ice clouds. However, until IceCube, these instruments had flown only aboard high-altitude research aircraft. This meant scientists could gather data only in areas over which the aircraft flew. According to scientists at NASA’s Goddard Space Centre, with IceCube scientists now have a working submillimetre radiometer system in space at a commercial price, and more importantly it provides a global view on Earth’s cloud-ice distribution.


CONTEST NEWS WITH ZS6C Updated 10 January 2018 

YB DX Contest Rules: Objective: For amateurs around the world to contact as many other amateurs in as many countries and Indonesia (YB Land) contesters. Date & Time: 13 January 2018 - 00:00 UTC – 23:59 UTC (24 Hours). Bands:  3.5, 7, 14, 21 and 28 MHz. (No WARC bands.). Exchange: 59 + Serial Number (eg: 59 001).

DARC 10m contest: The DARC invites all radio amateurs of the world to participate in the annual DARC 10m Contest. 0900-1059 UTC. January 14, 2018. 2. Operating modes and bands: CW: 28,000 to 28,190 kHz, SSB: 28,300 to 28,700 kHz. 3. Stations to work - All - each station only once.

LZ OPEN CONTEST: DATE AND TIME: 18.00 to 22.00 UTC January 19. BANDS AND MODE: 3.5 and 7 MHz, CW. PARTICIPANTS: Amateur Radio Operators World-Wide. EXCHANGE: Six figures: the serial Nr of the QSO and the serial Nr of the last correspondent’s QSO. RST is not required. The RST will be considered 599 for all valid contacts. First QSO exchange: 001 000 See the example. QSO with the same station is allowed after 29 minutes regardless of band (Any station can be worked once every 30 minutes - on the 30-th minute or after it). No time limit to change the bands.

The PEARS National VHF/UHF Contest: Aim of a VHF and UHF contest is to stimulate activity on these bands, make many long-distance contacts possible, establish new records, encourage the improvement of VHF and UHF equipment and advance amateur radio, will take place from 19 to 21 January and is open to all licensed amateurs. Exchange:  call signs, signal reports and the locator, such as the 6-digit Maidenhead Locator or co-ordinates. See Blue Book for more details

Hungarian DX Contest: Goals: to promote the traditionally good friendship between the radio amateurs. Date and time: Saturday 12:00 UTC to Sunday 11:59 UTC January 20-21st. Participants: any licensed radio amateur stations or SWLs. Frequencies: 160, 80, 40, 20, 15, 10 m amateur bands. Modes: A1A (CW) and A3J (SSB). Contacts: Any stations around the world can contact as many other stations around the world as possible. The entrant can work once with the same station in the same band except in MIX categories where the entrant can work both CW and SSB with the same station in the same band. Exchange: RS(T) + QSO consequent serial number from 001.

UBA DX Contest: Purpose: To contact as many Belgian and other amateurs as possible. Period: SSB 27 - 28, 13:00 UTC on Saturday to 13:00 UTC on Sunday. Bands: 80, 40, 20, 15 and 10 meters. The IARU band plan as well as the frequencies proposed by the UBA HF Contest committee must be adhered to. At this time, the preferential frequencies are:  SSB: 3.600 - 3.650, 3.700 - 3.775, 7.060 - 7.100, 7130 - 7200, 14.125 - 14.300, 21.175 - 21.350 and 28.400 - 28.700 MHz. Exchange: DX stations: RS(T) + serial number starting from 001.

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 27 January, 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 contesters are free to use any HF (non-WARC) band as they see fit. (See Blue Book for details)

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PC Fan  22/02/2018  16:13:35
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22/02/2018  12:22:00
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SDR Workshop Durban  21/02/2018  15:40:01
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2018 SARL Contest Manual  20/02/2018  23:39:35
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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.

 Cancelled Licence Rossouw, ZU6GP



Conical Technologies

CDS Advert 


 Click here to visit website 

 Click here to go to the Kevtronics web 

Sam's Radio

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: 27/7/2017