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ARRL — The Dave Kalter Youth DX Adventure (YDXA) has announced an exciting essay competition for young radio amateurs. Due to the generosity of the 2016 raffle winner Paul Ewing, N6PSE, and the co-founders of the YDXA, the winner of the essay contest will receive a complete Amateur Radio station.The prize includes an Alinco SR8T HF, a 12 V, 30 A power supply (Jetstream or equivalent), vertical antenna…
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So over the weekend, I sat down with 50 feet of coax, 10 feet of copper pipe, and a blowtorch. Now I have a 2m 1/4 λ J-Pole. It actually does a better job than the packaged antenna I bought for that band–it can hit the repeater 3 miles away without sounding too quiet (but I’ve still got a setting problem on the radio itself–I really don’t know this unit that well).
However, I need to get this thing in the air. I just don’t care about any restrictions, as that’s not a major issue. The apartment complex would have yelled at me some time ago about the massive non-working antenna mount I’d had before if they really cared.
Any suggestions?
submitted by /u/thephotoman
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submitted by /u/warcand [link] [comments] |
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So over the weekend, I sat down with 50 feet of coax, 10 feet of copper pipe, and a blowtorch. Now I have a 2m 1/4 λ J-Pole. It actually does a better job than the packaged antenna I bought for that band–it can hit the repeater 3 miles away without sounding too quiet (but I’ve still got a setting problem on the radio itself–I really don’t know this unit that well).
However, I need to get this thing in the air. I just don’t care about any restrictions, as that’s not a major issue. The apartment complex would have yelled at me some time ago about the massive non-working antenna mount I’d had before if they really cared.
Any suggestions?
submitted by /u/thephotoman
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submitted by /u/MuadDave [link] [comments] |
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submitted by /u/warcand [link] [comments] |
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ARRL — The winning article for the November 2016 QST Cover Plaque award is “A Mutli-band Antenna for Kayaks and Boats” by Bil Paul, KD6JUI. The QST Cover Plaque Award — given to the author or authors of the most popular article in each issue — is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. Cast a ballot for your favorite article in the December issue today.
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ARRL — The winning article for the November 2016 QST Cover Plaque award is “A Mutli-band Antenna for Kayaks and Boats” by Bil Paul, KD6JUI. The QST Cover Plaque Award — given to the author or authors of the most popular article in each issue — is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. Cast a ballot for your favorite article in the December issue today.
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Assuming you have a directional antenna and are aware of when the satellite will pass, you can communicate to it just as you would any other repeater? This would of course allow for a very wide distance of communication, correct?
Are these mostly used for collecting QSL cards?
Sorry for the newb question. (Currently unlicensed but studying)
submitted by /u/MannDude
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Assuming you have a directional antenna and are aware of when the satellite will pass, you can communicate to it just as you would any other repeater? This would of course allow for a very wide distance of communication, correct?
Are these mostly used for collecting QSL cards?
Sorry for the newb question. (Currently unlicensed but studying)
submitted by /u/MannDude
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ARRL — The ARRL is inviting nominations for awards that recognize educational and technological pursuits in Amateur Radio. Nominations are also open for the League’s premier award to honor a young licensee.The Hiram Percy Maxim Award recognizes a radio amateur and ARRL member under age 21, whose accomplishments and contributions are of the most exemplary nature within the framework of Amateur Radio ac…
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ARRL — The ARRL is inviting nominations for awards that recognize educational and technological pursuits in Amateur Radio. Nominations are also open for the League’s premier award to honor a young licensee.The Hiram Percy Maxim Award recognizes a radio amateur and ARRL member under age 21, whose accomplishments and contributions are of the most exemplary nature within the framework of Amateur Radio ac…
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The Wireless Institute of Australia (WIA) is keeping alive its advocacy that Advanced Licensees be allowed to use up to 1kW power. The WIA Spectrum Strategy Committee has put to the ACMA the issue of high power beyond the present limit of 400 watts peak, in its “log of claims” after the now-infamous high power trial in 2013. Many radio amateurs ask why is it that we just can’t have it, like in so many other countries — New Zealand, America, Canada, Japan and so on? Spectrum Strategy Committee spokesman Roger Harrison VK2ZRH says the central issue comes down to that of compliance with electromagnetic radiation standards in Australia. The ACMA uses the term “electromagnetic emissions” — abbreviated EME – but the acronym EMR (for electromagnetic radiation) is also widely used for the same thing. Australia is unique in the world when it comes to radiocommunications regulation, embodied in licence conditions, and compliance with electromagnetic radiation standards. Here, the two things are linked — but nowhere else in the world.
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On a salt lake in Central Australia early next year a radio amateur will conduct tests of a wide area radio network destined for the planet Mars. Robert Brand VK2URB, of Thunderstruck Aerospace, reports that it is an essential part of a project to develop the Mars Nano-Lander and Methane detection system called MEDIAN, set to land in 2025. Approval will be sought from the Australian Civil Aviation Safety Authority for use of the air space for the test. The project calls for 10 separate penetrators to be ejected from the jettisoned heat shield at about 6km from the surface of Mars. They are to spear into the surface of Mars and form a ring about 8km wide. The radio systems will begin measuring distance between the other landers and map the network. Robert VK2URB says they will then switch to a random packet mode and begin sending messages to an orbiting craft. Even the orientation of each probe covering an area around the size of a small city, will be detected and used to calculate the direction that wind, and hopefully any methane, on the thin Martian atmosphere. Robert VK2URB says that the audacious mission is a joint project with the UK Methane detection group at the University of Central Lancashire, and the Australian Thunderstruck Aerospace team. Robert is the design architect of the landing system, the mapping, orientation, communications, data relay, and the on-going non-methane science package. He says that never before has a network of probes been landed anywhere outside of earth and have impactors with the intention of surviving the process. The possibility of microbial life on Mars has been discussed by scientists since the presence of methane gas on the red planet was found several years ago. MEDIAN will map possible methane vent locations for a rover to investigate. If the rover fails to land, the project will still relay local weather and subsoil information back to earth. It’s expected that the tests in Central Australia will demonstrate the essential role that radio will play in mapping, locating, orienting the network and then relaying data around the network.
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The Wireless Institute of Australia (WIA) is keeping alive its advocacy that Advanced Licensees be allowed to use up to 1kW power. The WIA Spectrum Strategy Committee has put to the ACMA the issue of high power beyond the present limit of 400 watts peak, in its “log of claims” after the now-infamous high power trial in 2013. Many radio amateurs ask why is it that we just can’t have it, like in so many other countries — New Zealand, America, Canada, Japan and so on? Spectrum Strategy Committee spokesman Roger Harrison VK2ZRH says the central issue comes down to that of compliance with electromagnetic radiation standards in Australia. The ACMA uses the term “electromagnetic emissions” — abbreviated EME – but the acronym EMR (for electromagnetic radiation) is also widely used for the same thing. Australia is unique in the world when it comes to radiocommunications regulation, embodied in licence conditions, and compliance with electromagnetic radiation standards. Here, the two things are linked — but nowhere else in the world.
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On a salt lake in Central Australia early next year a radio amateur will conduct tests of a wide area radio network destined for the planet Mars. Robert Brand VK2URB, of Thunderstruck Aerospace, reports that it is an essential part of a project to develop the Mars Nano-Lander and Methane detection system called MEDIAN, set to land in 2025. Approval will be sought from the Australian Civil Aviation Safety Authority for use of the air space for the test. The project calls for 10 separate penetrators to be ejected from the jettisoned heat shield at about 6km from the surface of Mars. They are to spear into the surface of Mars and form a ring about 8km wide. The radio systems will begin measuring distance between the other landers and map the network. Robert VK2URB says they will then switch to a random packet mode and begin sending messages to an orbiting craft. Even the orientation of each probe covering an area around the size of a small city, will be detected and used to calculate the direction that wind, and hopefully any methane, on the thin Martian atmosphere. Robert VK2URB says that the audacious mission is a joint project with the UK Methane detection group at the University of Central Lancashire, and the Australian Thunderstruck Aerospace team. Robert is the design architect of the landing system, the mapping, orientation, communications, data relay, and the on-going non-methane science package. He says that never before has a network of probes been landed anywhere outside of earth and have impactors with the intention of surviving the process. The possibility of microbial life on Mars has been discussed by scientists since the presence of methane gas on the red planet was found several years ago. MEDIAN will map possible methane vent locations for a rover to investigate. If the rover fails to land, the project will still relay local weather and subsoil information back to earth. It’s expected that the tests in Central Australia will demonstrate the essential role that radio will play in mapping, locating, orienting the network and then relaying data around the network.
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From my bad memory, they do. If hams still use analog thumb dial switches on their rigs, don’t you think it is about time to upgrade your hardware?! Rigs using optional tone squelch boards and no digital. I can understand financially challenged really old hams, but come on. ..
If you haven’t had a new radio in 30 years, life sucks! I’m not trying to shame you, I’m just… God bless you!
submitted by /u/whydoipoopsomuch
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Here’s your chance to ask questions that you think may have been asked before, or that might not require their own thread.
This is a great place to get answers about choosing or operating first radios, as these threads often get ignored due to their frequent reappearance on the front page. You’ll have lots of eyes here.
No question is a dumb question!
Upvote questions and good answers. It improves their visibility!
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Has anyone seen or heard of such a setup where a single VFO DMR radio could be a repeater? Effectively a simplex repeater, but with only a 30ms delay (duration of a single time slot) by leveraging one time slot to RX and the other time slot to TX. At face values, it seems like it should be possible.
submitted by /u/azlyle
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