PODCAST · education
Foundations of Amateur Radio
by Onno (VK6FLAB)
Starting in the wonderful hobby of Amateur or HAM Radio can be daunting and challenging but can be very rewarding. Every week I look at a different aspect of the hobby, how you might fit in and get the very best from the 1000 hobbies that Amateur Radio represents. Note that this podcast started in 2011 as "What use is an F-call?".
Episodes
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How to point an antenna without moving it?
Foundations of Amateur Radio The radio telescope at Dwingeloo in the Netherlands recently promoted an Open Day where visitors were treated to tours and live demonstrations. One video caught my eye, a 2.4m dish on a remote controlled azimuth and elevation mount that scanned the entire sky every...
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Bald Yak 21: When you need to travel to Pluto and back
Foundations of Amateur Radio I recently expressed the notion of using a PlutoSDR as a replacement for an oscilloscope, a spectrum analyser, and perhaps even a vector network analyser. I can add signal generator to that list and you get the notion that this one device might replace a bunch of…
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Getting Kitted Up with Amateur Radio
Foundations of Amateur Radio Launched into your amateur radio adventure you're faced with figuring out what you need to fly. If you have a web browser, you can start listening to a massive array of online radio sources .. today. Beyond that, a handheld radio is often the first purchase for a new...
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Monitoring radio spectrum around you
Foundations of Amateur Radio Previously I've talked about using radio spectrum monitoring to detect lightning to potentially protect your equipment. This triggered an email from Nick VA3NNW, who pointed out that AM demodulation of "one point twenty-one jiggawatts", is really a red-herring, and...
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Global Ionospheric Maps
Foundations of Amateur Radio In the middle of the night when insomnia rears its head, there are occasions when an idea sprouts that is still with me the next day. I imagined a spinning globe that shows ionospheric propagation and allows you to navigate around the world and experiment. Think the...
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It's all in the community
Foundations of Amateur Radio Over the weekend I had the opportunity to participate in two completely different community events, one aimed at an amateur radio audience, the other at the general public. Every year, several of the amateur radio clubs in my area hold their individual swap meet…
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Lightning in a bottle
Foundations of Amateur Radio The other day I heard a thunderclap and as is my Pavlovian response, immediately ran to my shack to disconnect the antennas from their respective transmitter and transceiver. I added a diary entry to my phone to note that I'd disabled my WSPR, or Weak Signal…
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Radio .. for the love of it
Foundations of Amateur Radio During the week I was shown a photograph of a chalkboard standing on the sidewalk with one of those "Thought of the Day" quotes on it. Credit aside, since I've been unable to confirm it, despite multiple reverse image searches and attempts at author attribution, the...
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Give yourself a break!
Foundations of Amateur Radio Over the past weeks, actually, probably months, the push to talk button on the radio I use for my weekly discussion net has been acting up. In the middle of an over it would sometimes cut-out for no particular reason. Being mindful and pushing harder didn't seem to…
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Emergency response reality check
Foundations of Amateur Radio Recently I explored the nature of amateur radio emergency response. I received a few replies providing an insight into the on the ground reality and it encouraged me to dig into this a little more. I'll start with some context. Early in my amateur adventures I became...
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An emergency response
Foundations of Amateur Radio Previously I've talked about one of the often lauded cornerstones of the amateur radio community, namely Emergency Response, and to be frank, I questioned then, as I do now, the reality of this, at the very least, perceived, foundational aspect of our global hobby....
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CME, Wind, Flares, Flux and Geomagnetic Storms .. say what?
Foundations of Amateur Radio When the Sun burps, something that it does regularly, the mainstream media starts talking about aurorae and optionally the end of the civilised world, not always as clinically as that. What's not talked about, let alone explained, is the nature of the solar burp.…
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The power of patience and pacing
Foundations of Amateur Radio One of the more, let's call it challenging, skills to learn in amateur radio is the pace of the process. For many new amateurs I meet, face-to-face, on-air or online, the excitement to get started, to get on-air, to make a contact, to do something, anything, is...
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The things you hear when you least expect it.
Foundations of Amateur Radio The other day a friend of mine mentioned in passing that they'd hooked their Home Assistant dashboard to an RTL-SDR dongle to listen to the various ISM bands. If that sounds like gibberish, let me elaborate. "Home Assistant" is a tool that, among other things, allows...
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What does expertise look like?
Foundations of Amateur Radio Over the years I've had the opportunity to operate my station with other amateurs in close proximity. From a community perspective, this is loads of fun; from a radio perspective it's been frustrating to put it mildly. For example if you're operating on say 40m and…
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Failure is a dirty word
Foundations of Amateur Radio It's a curious thing, this hobby of ours, in that the more you want out of it, the more challenging it becomes. For example, you might start your journey with a VHF or UHF handheld radio, sometimes referred to as a Walkie-Talkie or a Handy, and you start listening to...
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Building a new resource: How do you get into Amateur Radio?
Foundations of Amateur Radio The other day I was asked a question on social media. Having answered this question several times before, I admittedly .. initially .. groaned, then provided the bare bones of a response. A little while later, I recalled that I had provided a detailed response to this...
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Telling Stories to Strengthen a Community
Foundations of Amateur Radio When was the last time you told a story? The hobby of amateur radio represents as diverse and disparate a group of humanity as I've come across in my life. While that might mark me as living a sheltered existence, I have been around the globe and experienced some of...
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Bald Yak 20: More Pi with the Soap
Foundations of Amateur Radio The thing I think I love most about the hobby of amateur radio is the challenges it represents, not in terms of life or emotional ones, though I will admit that there's some of those .. in no small part due to the variety and complexity associated with being human and…
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Bald Yak 19: SoapyAudio adventures
Foundations of Amateur Radio Previously I've talked about a piece of software called SoapyAudio. It's part of the toolkit called SoapySDR which in turn is part of a whole ecosystem called the Pothos framework, coordinated by Pothosware, founded by Josh Blum. I'm mentioning this for two reasons,...
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Why not use LoTW?
Foundations of Amateur Radio The other day I witnessed a fellow amateur attempting to guilt another into using LoTW with comments about how their QSO partner would appreciate confirmation via the service, even if they didn't care for it. Before I continue, if you're unfamiliar, when two amateurs...
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Some days are like running in place ...
Foundations of Amateur Radio Recently I discovered that the antenna that I had connected to my WSPR or Weak Signal Propagation Reporter beacon was not a 40m antenna, instead, it turns out to be a 15m antenna. The how and why of that mix-up isn't particularly helpful, so instead I set out to…
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Keeping track of your adventures
Foundations of Amateur Radio About a year ago I set upon a new adventure, to determine if the dummy load I own, traditionally seen as a device that doesn't emit any RF, to determine if it was in fact imbued with the ability to absorb RF, rather than share it around like an antenna might. At this...
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Dealing with Complexity
Foundations of Amateur Radio Several years ago, I forget exactly when, I was gifted a device called a "Wio Terminal". It's a micro-controller in a box with a screen, buttons, Wi-Fi, Bluetooth and a boat load of sensors, ports and more. It's intended for experimentation and truth be told, exactly...
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What does amateur radio bring to your life?
Foundations of Amateur Radio The other day I went for a walk around the block for the first time in a while. It's something I did for a time and then for several reasons, mostly to do with health, didn't. For me it's the mental equivalent of having a shower with the added benefit of not having to...
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You don't need an excuse to make noise!
Foundations of Amateur Radio The other day I came across a post on mastodon.radio by Keith W6KME announcing the resumption of the Micro Field Day, spelled using the 12th letter of the Greek alphabet, Mu. This was news to me, since I didn't know they'd stopped, let alone existed at all. Being the...
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What's in an S-unit?
Foundations of Amateur Radio The other day fellow amateur Randall VK6WR raised an interesting question. Using his HP 8920A RF Communications Test Set, which you might recall from our adventures in measuring radio harmonic power in 2023, that report is on my Github repository, but I digress…
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Where is the spark .. gap?
Foundations of Amateur Radio The thing I love most about this amazing hobby of amateur radio is the sheer size of the community and the depth of knowledge that comes with it. Case in point, the other day I mentioned the spark gap transmitter at Grimeton in Sweden. A few hours after releasing my...
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Bald Yak 18: Everything Everywhere All at Once?
Foundations of Amateur Radio The other day I was playing around with RDS, or Radio Data System, it's a digital signal that's often embedded in a commercial broadcast FM transmission. Among other things it contains information about the station, its content, frequencies and potentially other…
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Bald Yak 17: Adventures in Radio Data Systems
Foundations of Amateur Radio While spending some quality time discovering what I don't know about GNU Radio, I explored the notion of attempting to at least understand a little more about how an FM signal works. Depending on your background, the letters FM mean different things. In amateur radio...
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Bald Yak 16: How do you decode FM?
Foundations of Amateur Radio How do you make a hole? That's a pretty straightforward kind of question, and by the time this sentence is finished, there's going to be at least as many answers as people who considered it. I didn't supply any parameters to this hole, so answers could include…
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One step forward ... three steps back.
Foundations of Amateur Radio Still excited from my minor victory in discovering a missing puzzle piece associated with the project I'm working on, I spent the past week introducing my head, if not literally, at least figuratively, to the surface of my desk in a traditional head-desk…
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Bald Yak 15, Playing with Radio .. now with software
Foundations of Amateur Radio A little while ago I discussed a lovely article by programmer, artist, and game designer "blinry" called "Fifty Things you can do with a Software Defined Radio". This week it occurred to me that I could use their article as a framework to further explore my Bald Yak...
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How to go about documenting your setup?
Foundations of Amateur Radio How to go about documenting your setup? Possibly the single most important thing that separates science from "fiddling around" is documentation. Figuring out how to document things is often non-trivial and me telling you that "unless you wrote it down, it didn't…
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Transmitting into a dummy load .. for a year .. on purpose.
Foundations of Amateur Radio Just under a year ago I started an experiment. I set-up a beacon for WSPR, or Weak Signal Propagation Reporter, transmitting at 200 mW into a dummy load using eight bands between 80m and 10m. I also set-up an RTL-SDR dongle, connected to an external 20m HF antenna and...
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How to become a radio amateur today?
Foundations of Amateur Radio The other day a fellow amateur revealed that they qualified for membership of the QWCA, the Quarter Century Wireless Association .. twice over .. there may have been some innocent whistling involved. During the ensuing discussion it emerged that it all started with a...
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Building a shack: Part 8 - Will it ever end?
Foundations of Amateur Radio Building a shack makes a number of assumptions about your situation and to make it abundantly clear, it's not the only way to enjoy the hobby of amateur radio. Visiting clubs locally and remotely, being a member of a club, visiting other amateurs, setting up your...
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Building a shack: Part 7 - Powering your shack
Foundations of Amateur Radio On your amateur radio journey, you'll likely discover that many transceivers run on 13.8 volt DC, give or take. For example my FT-857d requires 13.8 volt plus or minus 15 percent, with a negative ground, and a current draw of 22 ampere, more on that later. In other...
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Building a shack: Part 6 - Noise
Foundations of Amateur Radio Noise la la la la la hinders if I were a rich man effective a noise annoys an oyster communication but a noisy noise annoys an oyster more. Or said differently, when you're trying to communicate, something that the hobby of amateur radio does in spades, you'll need to...
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Building a shack: Part 5 - Antenna Shenanigans
Foundations of Amateur Radio Putting your station together is best described as a juggling act, since you'll discover that everything depends on everything else and the more you plan, the more you learn and the more variables become apparent, none more so than with the selection of an antenna....
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Building a shack: Part 4 - coaxial cable alternatives
Foundations of Amateur Radio When you start the process of getting your hobby off the ground, either for the first time, or after a hiatus, you might be left with the impression that the only way to "do amateur radio" is to have a shack, a place where you can set-up your gear, and connected to…
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Building a shack: Part 3 - the ingress of coaxial cable
Foundations of Amateur Radio One of the potentially trickier aspects of putting together your shack is connecting the radio to the antenna. On the face of it, the challenge is limited to making sure that you have mating connectors on both ends, but when you actually start implementing this you'll...
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Building a shack: Part 2 - How much space do you need?
Foundations of Amateur Radio When you start on the journey of putting together a shack, in whatever form that eventually takes, you'll need to figure out how much space is required. Of course, no matter what you choose, it's never enough, but you have to start somewhere. Ultimately a shack is a...
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Building a shack: Part 1 - Setting the Scene
Foundations of Amateur Radio Recently it occurred to me that I haven't been using HF in my shack for much longer than I'd care to admit. Over the years I've spoken about my shack and how it's set-up, more on that shortly. I effectively went off-air when I decommissioned the computer that was...
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Bald Yak 14, choices and software flexibility
Foundations of Amateur Radio Let's start with an observation, I'm a geek, have been all my life. Since my early teenage years that evolved as a predilection for computing. As you might already know, I became a radio amateur to essentially get away from computing. The reality turned out to be...
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I have a problem .. with logging.
Foundations of Amateur Radio The first step in solving any problem is recognising that there is one. In my case the name of that problem is "logging". Specifically the storage and collection of my amateur radio contact logs. Just to be clear, the actual process of logging is fraught .. what do…
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How to make our hobby and community resilient?
Foundations of Amateur Radio The other day I was stuck in traffic behind a vehicle proudly proclaiming that it was "electric". I'd seen the model before, just never connected it with being available as an EV. I wondered how many other cars on the road turned out to have added an "electric" option...
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A new year with new services to the public .. in 1905
Foundations of Amateur Radio Recently I spent some quality time digging into the origins of a word in common use. In doing so, I contacted the Postal Museum in the United Kingdom and received a lovely reply that included a photo of a document in their archive. The document, a Post Office Circular...
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What do you call that .. radio?
Foundations of Amateur Radio If you use a word often enough it starts to lose its meaning. The other day, during breakfast, well, coffee, whilst playing one of our start-the-day with a smile word games, the word "RADIO" turned up. I grinned and pointed out that this was my favourite word, to…
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On the origins of the RF circulator
Foundations of Amateur Radio Recently I explored the use of a radio device aptly described by a fellow Aussie Electronics Engineer, "ozeng", as "Absolute witchcraft." .. I'm talking about an "RF circulator", one of which is sitting quietly on my desk, roughly 60 mm square, 30 mm thick, weighing…
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ABOUT THIS SHOW
Starting in the wonderful hobby of Amateur or HAM Radio can be daunting and challenging but can be very rewarding. Every week I look at a different aspect of the hobby, how you might fit in and get the very best from the 1000 hobbies that Amateur Radio represents. Note that this podcast started in 2011 as "What use is an F-call?".
HOSTED BY
Onno (VK6FLAB)
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Foundations of Amateur Radio currently has 605 episodes available on PodParley. New episodes are automatically indexed when they're published to the podcast feed.
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Starting in the wonderful hobby of Amateur or HAM Radio can be daunting and challenging but can be very rewarding. Every week I look at a different aspect of the hobby, how you might fit in and get the very best from the 1000 hobbies that Amateur Radio represents. Note that this podcast started in...
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Foundations of Amateur Radio releases new episodes frequently with a large back catalog of 605 episodes. Check the episode list for recent publication dates.
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Foundations of Amateur Radio is created and hosted by Onno (VK6FLAB).
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