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HAMNET SARL EMERGENCY COMMUNICATIONS DIVISION 


HAMNET AMATEUR RADIO EMERGENCY COMMUNICATIONS NETWORK 

IN HAMNET's Amateur Radio Report........a week of much activity - read more...........

Scroll down for more

 

 

 

 

WHEN ALL FAILS AMATEUR RADIO SUCCEEDS 

Something has gone terribly wrong. Normal ways of doing things are not working. The fastest way to turn an emergency into a full disaster is to lose communications.

Radio Amateurs understand emergencies. For over 70 years they have provided emergency communications for organisations. When normal ways of communication fail or get overloaded Radio Amateurs will be there.  

HAMNET, the National Emergency Communications division of the South African Radio League (SARL), provides communications for emergencies and can mobilise experienced communicators who with their own radio equipment will back up official channels or take over when all else fails.

 

The SARL represents all Radio Amateurs in South Africa at all levels of Government and through the IARU at the International Telecommunications Union. 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 of communication modes at their disposal. These include plain voice, Morse code, numerous digital computer modes and even graphical modes like television. A licensed radio amateur is able to join in experiments using all these modes.

 

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HAMNET CALL-SIGNS, MEETINGS AND BULLETIN SCHEDULES

Headquarters Report 

SUNDAYS - during the AMATEUR RADIO TODAY transmission, starting at 10h00 South African Standard Time (SAST), on HF and on many VHF and UHF repeaters around the country. (Current bulletin posted below)

Western Cape ZS1DZ or ZS1DCC

On the 1st Wednesday evening of the month, HAMNET's Western Cape monthly meeting is held at 19h30 SAST at Tygerberg Hospital's Provincial Emergency Management Centre.  

The radio bulletin is transmitted at 19h30 SAST on a Wednesday evening, on the local 145.700MHz repeater, with relays on to 1845 or 3760, and 7110kHz LSB, 144.300MHz USB, and Echolink, via ZS1DCC-R, on the 2nd and consecutive Wednesdays of each month.

Eastern Cape ZS2PE or ZS2BRC

There is a weekly net on 52.950MHz at 20h00 SAST on a Wednesday evening, and local HAMNET news is included in the PEARS bulletin on Sunday morning at 08h45 SAST on the 145.700Mhz repeater, with a relay on to 7098kHz LSB.

Northern Cape ZS3NC

Free State ZS4DCC

KwaZulu Natal ZS5DCC or ZS84SIG

Quarterly meetings are held on the 2nd Saturday afternoon of the month, at 12h30 for 13h00 SAST, either at Ethekwini Disaster Managment Centre or the 84th Signals Unit in Durban. The next 2 dates are 10/9 and 10/12. 

On Sunday mornings at 07h00 SAST, on 145.625MHz, there is a bulletin, also relayed on to 3760 and 7110kHz. 

There is a formal radio bulletin at 19h30 SAST once a month on a Wednesday evening,on the 145.625MHz Highway repeater, and informal nets at the same time, and on the same frequency, every other Wednesday evening.

Gauteng South ZS6

Monthly meetings are held on the first Thursday of the month at 19h00 SAST at the East Rand Branch clubhouse. On all other Thursday evenings, a social gathering is held at the same venue to chat or maintain equipment. 

Gauteng North ZS6PTA

Limpopo ZS6

Mpumalanga ZS6

Northern Western Province ZS6 

  

 

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HAMNET REPORT 24 SEPTEMBER 2017   

By Tuesday the 19th, Greg Mossop G0DUB was reporting that Hurricane Maria was moving through areas still recovering from the effects of Hurricane Irma just weeks ago and had been reassessed as a dangerous Category 4 hurricane.

Amateur Radio groups were preparing for this next storm and the Caribbean Emergency and Weather Net (CEWN), was activated on the morning of the 18th September 2017 at 10h30 UTC on the frequency 3815 kHz, and would subsequently move to 7188 kHz at 11h00 UTC.

It was intended to maintain 24 hour coverage during the passage of the system, and immediately after, in case there was the need to pass health and welfare traffic.

This followed earlier notices from the Puerto Rican and the Dominican Republic Emcomm operators, who advised they would be using the following frequencies;

Puerto Rico - 7188 kHz and 7192 kHz

Dominican Republic 7065 kHz,  but depending on propagation also 3780 kHz

With the potential to suffer QRM from a wider area, the normal operation of the Hurricane Watch Net on 14.325MHz had also started.

On Thursday Greg told us that XE2O of the FMRE in Mexico reported that they were maintaining an Emergency Network on 7060 kHz with the support of many Mexican radio amateurs. They had also deployed two mobile emergency communication units, one of them to the south of Mexico City and the other to the communities near the city where communication problems have been reported.

They had permanent contact on HF between the Command and Control centre in Mexico co-ordinating the emergency response and the Emergency Network of the FMRE.

9Y4J reported that Health and Welfare traffic in and out of Dominica continued to be passed via amateur radio, on frequencies 7188 kHz, and 3815 kHz.

However, the airports remained closed, and an assessment of the seaports was underway. This will help determine how soon relief goods, and substantial human resources, can access the island.

Further media reports said that, in the immediate aftermath of then-Category 5 Hurricane Maria's passage over Dominica on Monday, Frans van Santbrink, J69DS, on St. Lucia, checked into the VoIP Hurricane Net to relay damage reports he'd gathered via repeater conversations with other hams there. The New York Times also reported and posted audio that Amateur Radio was a primary source to gather initial damage reports from the storm-ravaged Caribbean Island nation of some 70,000 residents. US-based Julian Antoine, J73JA, solicited reports via a VoIP connection with the J73MAN repeater on Dominica.

“All power lines are down, our telephone lines are down, Internet lines, everything is down,” came a reply to Antoine’s inquiry. “Roads are blocked with debris. No confirmed information on fatalities or injuries.”

On Friday, Greg  posted that "Hurricane Maria continues to move through the Caribbean with Puerto Rico the latest to be affected, losing power and many cellular phone stations. The SATERN net is operating on 14.265MHz with bilingual (Spanish/English) operators looking for any messages out of Puerto Rico.

"It has been reported from the Dominican Republic that some Puerto Rican stations are operating on 7085 and 7095 kHz and they are communicating with those stations.

"Co-Operation is starting between networks in the area and between all countries in the Caribbean area, and their assistance is appreciated."

On Tuesday evening, GDACS  posted the first news of the second disastrous Earthquake in Mexico, a magnitude 7.1 temblor at 20h14 CAT, in an area where 8.5 million people live within a 100km radius of the quake. We have watched and listened to reports all week of frantic searches through the rubble of collapsed buildings and schools, and the death toll rising steadily toward the 300 mark. The FMRE National Emergency Net was activated on 7060kHz, 3690kHz and 14120kHz, and has been handling traffic to make up for the loss of some cellular networks, FMRE President Al Tomez, XE2O, told the ARRL.

Greg G0DUB also reported on the IARU Region 1 conference at Landshut, which closed just at the weekend. He said there had been a good meeting on last Sunday, amongst emergency communicators, where ideas about social media being used to spread important information regarding emergencies were discussed. Such things as international WhatsApp groups and possibly a FaceBook page to post urgent news on were mentioned, particularly bearing in mind the fact that FaceBook translation is improving, thus making dissemination to people not conversant in your language more effective.

On a local, and happier note, I have received a short report from Alister ZS1OK, on the Cape Town Peace Trail Run, which Hamnet helped marshal, last weekend. This was not the marathon run on Sunday, but rather an off-road run on the slopes of Lion's Head and Signal Hill on Saturday, finishing down at the Green Point athletics track. Alister says:

"The race went off successfully, with more than 330 trail runners enjoying the splendid views on the 12 and 22km routes. The weather was very windy initially, but settled to become a splendid day. This was the first event where we benefitted from using an event caravan and a 4x4 vehicle provided by the City of Cape Town's Disaster Risk Management. A big thank you to the City of Cape Town!

"Six operators were able to assist with facilitating communications for the recovery of some injured runners, fortunately none of which were serious."

Thanks for the report Alister!

As the long weekend progresses, and holiday-makers rush to and from their holiday destinations, may I make an appeal to all emergency communicators to keep their radios on, and monitor emergency frequencies and central repeaters, to be better able to help their fellow South Africans in case of need? Thank you very much.

 

This is Dave Reece ZS1DFR reporting for HAMNET in South Africa.


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This page last modified: 6/7/2016