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International Amateur Radio Union - Region 1
- Category: Youth - general
- Published: Wednesday, 01 July 2015 21:09
- Written by Lisa, PA2LS
- Hits: 83
Last Saturday the International Youth Meeting was held during HAM Radio Friedrichshafen. This event was hosted by German Youth Coordinator Annette, DL6SAK, and Youth WG Chair Lisa, PA2LS.
In this file you will find the slides of the following presentations:
Introduction of the new Youth Contest Program (YCP) of IARU R1 – PA2LS
YCP at 9A1A and youth projects of 9A1BRZ – 9A9A and 9A5W
Differences between German and US American Youth Communities – DO7KAY
In the end an interesting discussion took place, which was started by Kay DO7KAY, pointing out differences between German and US radio amateurs. Kay received for a year ARRL’s QST Magazine. With this he had the chance to dig deeper in the background of US radio amateurs.
After that, one of the main topics was the difficulty of obtaining an amateur radio license. This seems to be a problem in several countries. Depending on fees, minimum age, location of examination, level of exam questions and learning material. The discussion on this topic will continue in the near future. When it is hard to obtain a license, we will never get many more young radio amateurs.
- Category: EMC
- Published: Monday, 15 June 2015 10:28
- Written by Don Beattie
- Hits: 464
The CISPR 11 standard with the catchy title "Industrial, scientific and medical equipment - Radio disturbance characteristics - Limits and methods of measurement" covers power electronic devices such as solar inverters. Although there were voltage limits for conducted emissions at the mains port in the past, limits for the connections to the solar cells were missing.
After a positive vote of the international standard bodies, CISPR 11 Ed.6.0 is about to appear officially. In this new version limits finally apply (74 dBuV between 500 kHz and 30 MHz) for the DC terminals, in particular for systems up to 20 kVA in residential environments (Class B).
Through intensive work of the IARU in the standardization bodies during the last 5 years this goal has now finally been achieved. "But the work in terms of photovoltaic does not end here," said Thilo Kootz, DL9KCE, EMC Coordinator of IARU. “The limits are currently being validated by checking the emissions of installations in a computer model. It is possible that limits will be readjusted after this validation phase. With the current limit, however, a reasonable protection for shortwave reception has already been achieved."
- Category: VHF/UHF/SHF
- Published: Sunday, 31 May 2015 18:34
- Written by ON4AVJ
- Hits: 362
In 2014 the UBA organized for the first time this contest, starting the 1st of June and ending 30 September. This contest is meant to promote VHF DX-ing during the Es season, but also MS.
We invite every VHF_DXer to participate to this cup and so promote the use of our bands. More info about the rules can be found on http://www.uba.be/sites/default/files/uploads/vhf/contests/summercup14.pdf
The results of the first cup can be found on http://www.uba.be/sites/default/files/uploads/vhf/contests/summercup14.pdf The trophy will be awarded at HAM Radio in Friedrichshafen (during the VHF meeting).
- Category: Latest
- Published: Monday, 11 May 2015 06:43
- Written by Dennis Green, ZS4BS
- Hits: 550
It was a day they will long remember! Learners from the Sol Plaatje Primary School in Mmabatho linked up on Saturday 2 May 2015 with the Italian astronaut Samantha Cristoforetti, IZ0UDF, on the International Space Station via a link established by an amateur radio ground station located in Casale Monferrato, in the north of Italy, operated by Claudio Arrotti, IK1SLD.
While negotiating to secure a slot for a South African school, the Italian Embassy approached the South African Agency for Science and Technology Advancement (SAASTA) to assist with identifying a school for this project. The fact that the Sol Plaat-je Primary School team beat 1 101 other schools to win SAASTA's National As-troQuiz in 2014, secured them this exciting opportunity.
The original plan was for the learners to talk with Samantha Cristoforetti during a morning pass, but due to work pressure on the ISS, the contact was moved to a late after-noon pass, which resulted in the link to be shared with an Italian school.
Tensions were running high when it was established that the telephone line ex-tended to the hall could not receive incoming calls. "We frantically arranged with the te-lebridge in the USA that we would be calling them," Hans van de Groenendaal, ZS6AKV, said.
Prior to the ISS contact, Koos Fick, ZR6KF, who is a learner at the Helpmekaar High School and the South African Radio League's youth coordinator, made a brief presentation about amateur radio and how it is helping him in his school career and how this scientific hobby is providing communica-tion during emergencies, community and sporting events. He said that the link up with the ISS would not have been possible without amateur radio.
As the last few seconds ticked away, the learners were poised to ask their ques-tions and, with the audience, were visibly on tenterhooks, but when the first words "Hi, I am Samatha Cristoforetti" was heard across the speakers, there was a spontaneous ap-plause followed by an intense 10 minutes of silence as Sol Plaatje learners and learners at the Italian school alternately asked the questions. It was an event to remember for a lifetime.
The link to the audio of the contact is available on www.amsatsa.org.za
- Category: Amateur Activities
- Published: Tuesday, 05 May 2015 16:07
- Written by SV1IW
- Hits: 555
AEOLUS team, a team of greek radio amateurs, shall attempt for a second time to fly up to stratosphere a pioneering payload carrying amateur radio equipment. The special call sign granted for this mission is J43VHF and the flight name is AEOLUS-2WAY.
The balloon launch is scheduled for Sunday May, 10 2015 at 11:00 local time (i.e. eastern european summer time) or else 08:00 UTC. However, launch time may be affected by prevailing weather conditions or may be delayed appropriately to ensure a safer landing point. The launch place is a small, unused nowadays airport at Plaka, a location very close to the town of Megalopolis, located in the middle of Peloponnese, the southern peninsula of Greece. (coordinates 37.424775, 22.115378). The mission will offer not only the well known APRS beacon with GPS and sensor data (coordinates, altitude, temperature, battery voltage) but also an innovative 2WAY communication setup.
Radio Amateurs will be able to communicate with the control station of J43VHF:
1. on 144.220MHz (2M band) USB modulation, simplex communication with the HAB itself, which bears 2W (two watts) transmit power and a horizontal dipole antenna. The control team will have an uplink to the HAB at 23cm
2. on 7.120MHz (40M band) LSB modulation, simplex communication with the ground control station, which will have the ordinary power of 100W and a multiband dipole.
3. additionally, the APRS beacon will be heard as J43VHF-11 on 438.100MHz (73cm band) at 1200bps though, instead of common 9600bps speed used in UHF. The transmitter will have 150mW power.
- Category: Emergency Communications
- Published: Sunday, 03 May 2015 12:10
- Written by Greg Mossop
- Hits: 886
An announcement is expected today ( Sunday ) of the official end of the international Urban Search and Rescue (USAR) phase with the expectation that USAR teams will start leaving the area shortly. It is however still the case that in rural areas it is taking 5-6 days to reach those areas to try and provide assistance.
Two Amateur Radio stations have started operating from some of those rural places. 9N3AA Jose operating from Damauli, District Gorakha and 9N1SD Akarshan installed at Sindhupalchowk. Both the areas are highly devastated and affected.
VU2JAU reported that all amateurs in India are coordinating well, he also makes special mention of A41LD Walid bhai who has supported them right from the first day.
Nepal previously depended heavily on mobile phones for communications ( 64% according to Wikipedia ) and while restoring supplies to cellphone sites can be prioritised, power supplies for the citizens remain difficult. A requirement for 500 crank chargers was identified immediately which was passed on to all Indian Radio Amateurs who hope to be able to ship some crank chargers soon.
Many countries radio amateurs remain active in the area as the communications needs have not gone away. Teams certainly remain from India and China with some emergency traffic also heard in what was believed to be Russian on 14.300 on Friday.
Operations are taking place on a number of frequencies in the 40, 20 and 15m bands with 9N1SP specifically maintaining an international link on sked with the American MARS organisation.
All amateurs are reminded that emergency traffic may be heard on any frequency in the Amateur bands as it is not always possible for the Nepal stations to operate on the IARU Emergency Centre of Activity frequencies. If you hear the words ‘Emergency’ please give the stations room to work.
Sources: VU2JAU, GDACS, APAN, 9N1Emergency