TopPodcast.com
Menu
  • Home
  • Top Charts
  • Top Networks
  • Top Apps
  • Top Independents
  • Top Podfluencers
  • Top Picks
    • Top Business Podcasts
    • Top True Crime Podcasts
    • Top Finance Podcasts
    • Top Comedy Podcasts
    • Top Music Podcasts
    • Top Womens Podcasts
    • Top Kids Podcasts
    • Top Sports Podcasts
    • Top News Podcasts
    • Top Tech Podcasts
    • Top Crypto Podcasts
    • Top Entrepreneurial Podcasts
    • Top Fantasy Sports Podcasts
    • Top Political Podcasts
    • Top Science Podcasts
    • Top Self Help Podcasts
    • Top Sports Betting Podcasts
    • Top Stocks Podcasts
  • Podcast News
  • About Us
  • Podcast Advertising
  • Contact
Not in our directory?
Add Show Here
Podcast Equipment
Center

toppodcastlogoOur TOPPODCAST Picks

  • Comedy
  • Crypto
  • Sports
  • News
  • Politics
  • True Crime
  • Business
  • Finance

Follow Us

toppodcastlogoStay Connected

    View Top 200 Chart
    Back to Rankings Page
    Hobbies

    Foundations of Amateur Radio

    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?“.

    Advertise

    Copyright: ℗ & © 2015 - 2020 Onno Benschop

    • Apple Podcasts
    • Google Play
    • Spotify

    Latest Episodes:
    What improbable antenna solution works? Mar 04, 2018
    Show notes

    Foundations of Amateur Radio

    There is some truth in simplicity. I've mentioned in the past that "suck it and see" is a perfectly valid solution to figuring out if something is going to work or not.

    I've moved into my new home, my new QTH. The roof is colour bond, that's basically a corrugated iron roof, painted in some random colour. I think it's grey, but don't quote me on that, could be green.

    Inside is a mezzanine floor, essentially carving out a space within the roof area. It's going to be my office and radio shack, so after setting up technology, I had a spare 15 minutes and came across a box that had my radio bits inside it. After setting up power I went and combed through some more crates to locate a magnetic mount and the vertical I use on 2m and 70cm in my car.

    The roof beam is held up by a steel post which forms part of the railing that surrounds the mezzanine floor.

    All conventional wisdom tells me that this is a poor place for an antenna.

    So, undeterred with little else in the way of simple options, I stuck my magnetic mount to the steel post with my vertical attached. Of course this doesn't mean that I have my vertical actually mounted vertically, in fact it's not, it's horizontal.

    So, there's one of two steel posts that holds up the steel roof, a magnetic mount stuck to the side of the post with a vertical, running horizontally.

    It keyed up the local repeater the first time. Made some contacts, spoke to three local amateurs to confirm that they could in fact hear me, swapped sides on the post, from parallel to the roof line to 90 degrees off the side with some improvement.

    Now as I said, on paper this shouldn't work. The roof beam runs north-south, the repeater is off to the east of the pitched roof, so the signal isn't making its way off the ends, it's going through the roof, or I've managed to use the roof post as an antenna, or the roof, or both, or the signal is bouncing down, over a metal fence, who knows.

    The point is, it works when anyone you'd have asked about this would have rightly told you that it won't.

    When I asked recently what the ideal shack should look like, one person who travelled a lot pointed out that just enough shack is a good place to start. Right now, I'm a power supply, radio and a horizontally mounted vertical into the minimal shack.

    I was asked if I'd tested HF yet. Seriously, the radio is 15 minutes out of the box. But in a word, yes. I put on a 10m vertical, also mounted horizontally, same magnetic mount and I can hear the local beacon on 10m, 12m and 15m, a vast improvement on my previous HF experiences at home. Overall the noise on the bands seems less than it was in my old house - this could be because of shielding of the roof, or it could just be less actual noise, or because my antenna is mounted horizontally. Previously I had S9 noise, now it peaks at S5, but on average it's around S2-3. This is not a proper test by any stretch of my imagination and while initial indicators are better, this is by no means a definitive test of the HF band.

    For my next trick I'll be taking a closer look at the railing that surrounds my office, It's made from stainless steel stranded wire, the stuff you find on a boat, with seven strands to choose from, in three separate orientations, so plenty of room for experimentation and more if I dare to use the strands on the staircase, seriously, I won't be.

    One thing I will do before I start keying up for the next HF contact is do some electro magnetic radiation research to learn if I'm in the danger zone, or if my family might be exposed to unsafe levels of RF radiation. Normally this isn't an issue with 5 watts when the antenna is on a roof, but now I have it indoors I'll spend some time making sure.

    I still have a magnetic loop on loan from a friend, packed away in a box that I'll unearth in the next couple of days to see what it has to say about the new RF environment.

    As I said this is just the beginning and I've not yet been calling CQ or checking out the local HF nets.

    What crazy set-ups do you admit to, that actually worked, even though they shouldn't have?

    I'm Onno VK6FLAB


    What criteria do you have for your ideal shack? Feb 25, 2018
    Show notes

    Foundations of Amateur Radio

    From time-to-time people move and their shack tends to move with them. For me that move is happening right now, I'm moving all of 900m up the road, a long story in itself, but perhaps best told over a camp fire far from civilisation.

    As I started the process of working out what needed to be done I realised that I made a few rookie errors. The first one, one that I've made before, but at the time my excuse was that I knew nothing about amateur radio - some say I still don't - this time I was busy focussing on above ground power, pole-top transformers and high-speed internet. I forgot to check mobile phone coverage, forgot to bring a radio and forgot to listen on HF.

    I will no doubt find out what the state of these things is when I actually move, in a few days from now, but my rationalisation was essentially, "I'm not able to operate from home as it is, so it won't get any worse and if I'm lucky, it might get better."

    Frankly I didn't have the heart to tell my long-suffering partner that there was yet another condition, you know among the "must have actual proper internet, not the promise of one next year", "must have space for my office" and "a place that can be locked up in the garage". I skipped the "must be amateur radio friendly" tick box for familial peace, and as I said, it cannot get worse and it might get better.

    Looking around my office now, it occurs to me that I'm going to have to remove the coax that runs through the window, which involves either cutting the coax, or de-soldering the connector. I suspect that it will become the most expedient of the two, given that de-soldering involves having to find my soldering iron among the half-packed-up house, cutting looks like it. I'll tell myself that it's good because I'll find out if my coax is waterlogged, but between you and me, it's because I'm impatient to get moving.

    The remaining part of this is the thing that's on the other end of the coax, the metal shiny thing on the roof, known to most of the amateur community as a 10m vertical, a metal rod, resonant on the 10m band, about 2m long, clamped to the gable of my pergola, will have to come down. Of course at that point I'll be off the air.

    No counting how long that will last, but I'm hopeful that a quick-and-dirty magnetic mount will get me up and running shortly after the move.

    Of course in an ideal world I'd already have measured out the future radio-shack, have a room away from the house, insulated, away from the fence-line, lots of backyard with a choice selection of high trees, no noisy neighbours, council regulations that encourage radio amateurs and a coffee machine, a bed and while I'm at it, air conditioning.

    Who am I kidding?

    I'll likely be able to put my radio somewhere in a corner on my desk, much like it is right now and if I'm lucky, I'll be able to be on-air without disturbing the family.

    This all in stark contrast with a friend of mine who asked the community a simple question. Where would you put your radio shack if you needed fast internet and nearby medical services, anywhere in the state.

    The answers were many and varied, from ludicrous to amazing, from off the cuff to well researched, just waiting for the win on the weekend lottery to be able to pay for it.

    Our shack is an integral part of our hobby and while I see some amateurs go out of their way to find and position their ideal shack, I see many more just making do with what they have. No doubt there is a balance to be found.

    I'm curious to hear what criteria do you have for your shack? What things are essential and what would be nice to have. If money wasn't a problem, what would your ideal shack look like and where would it be?

    I'm Onno VK6FLAB


    eBook Volume 3 - short Feb 21, 2018
    Show notes

    Foundations of Amateur Radio is now available as an eBook.

    In Volume 3 - Share the fun - follow the third year of my journey, how to make contacts on HF, how to go on-air QRP, propagation planning, how to deal with trolls, online resources and more.

    Search for my callsign - VK6FLAB - on your local Amazon store to have a Look inside.

    I'm Onno VK6FLAB


    What do you know now that you would have liked to have known when you started in amateur radio? Feb 18, 2018
    Show notes

    Foundations of Amateur Radio

    Recently I was asked: "What do you know now that you would have liked to have known when you started in amateur radio?"

    The hobby of amateur radio is one filled with generosity. Extreme forms of it. People go out of their way to help, to explain, to loan equipment, to help out, to repair stuff and to participate. In the past I've spoken about the negative aspects of this hobby as well. Belligerence, the warlike aggressively hostile nature of individuals and groups in amateur radio is like nothing I've ever encountered elsewhere, and it needs to be acknowledged.

    In many ways amateur radio is about extremes, generosity against belligerence, very polarising, confusing and challenging.

    That said, amateur radio is a hobby like no other.

    It sits in a field of exploration, of discovery, of invention, challenge and experimentation. Amateur radio navigates between scientific and empirical learning. It's regulated to encourage research and at the same time encourages new entrants into the field with a weekend course. The range between learner and professional embodies the amateur radio community.

    One of the things that caught me by surprise about amateur radio is that nothing is set in stone. You would think with a field based around physics that would not be the case, but given the vast range of variables at play, often "suck it and see" is a perfectly valid way of finding out if something works. I'd hazard a guess that the most frustrating part of asking a question as a new amateur is the answer: "Try it and find out."

    In 1920 H.L. Mencken said: "there is always a well-known solution to every human problem - neat, plausible, and wrong".

    With that in mind be sceptical if an amateur gives you the definitive answer on how to do something. Often the number of variables is infinite and your situation is subtly different from theirs. In that context, the answer "Try it and find out." is perfectly valid, frustrating as it is.

    I started in this hobby just over seven years ago and since then I've continued to collect what I think of as puzzle pieces, bits of information that I carry around. For example, a dit is the letter e because it's the most common letter in the English language. Voltage equals current times resistance. You need a carrier to measure the standing wave ratio. Remember to bring the head unit connecting cable when you go into the field.

    There are thousands of bits of information like that floating in my head. When two collide, I gain some knowledge. The most recent example of that was my explanation on how you could use the offset within a side-band signal to determine if a radio was on the correct frequency. It took a while for me to understand it enough to explain it and when I could, I did.

    For example, right now I'm working through the various types of decibel. You might have thought of a decibel as a particular unit, but actually there is more than one. The deeper you dig, the more crazy it gets. For example, the definition of a decibel in relation to sound appears to exist within an ISO standard, but you can't get that standard unless you buy it. Seriously, a physical standard that you have to buy in order to know what it is.

    Another example is the definition of the Ampere, which involves infinite length wire and the force between them. The mind goes cross-eyed thinking about how to calibrate an ammeter.

    So, to answer the question: "What do you know now that you would have liked to have known when you started in amateur radio?"

    It's complicated. It's challenging and it's like nothing else. Find your own way, talk to people, ask questions and be prepared to be amazed and annoyed at the same time.

    One final comment, amateur radio has its share of "Mostly Harmless" crocodiles, all mouth and no ears, but the overall apt description that comes to mind to describe this fascinating community is "generous and welcoming".

    I'm Onno VK6FLAB


    How should I promote my contest? Feb 11, 2018
    Show notes

    Foundations of Amateur Radio

    The act of telling someone about something is promoting it, not in a marketing sense, just an awareness sense. The act of not telling someone is keeping a secret.

    Radio amateurs, and I have no doubt, people who are not, like to plan things. They set-up contests, on-air activities, organise swap-meets, build websites, write articles, invent things, build stuff, and all manner of other amazing activities. Some amateurs talk about what they've been up to, but most just sit quietly, hoping that their brilliance will be discovered by someone.

    Of course that rarely happens.

    Let's imagine a contest. It's an activity that you'd ideally want other amateurs to participate in, talking to yourself, on your own is like being a broadcaster and I can tell you, that's a tough gig. A contest is about making contacts between different participating people.

    So, your contest, it's going to have rules, a planned outcome, say more QRP activity on 40m, and it's going to run at a particular time. I've lost count of the times where that's the sum-total of effort put into organising a contest. Of course the contest flops, since no-one knew about it, and often that's the end of it.

    So, what can you do to actually get a head start in making this contest work?

    For starters, you should figure out who the audience for this contest is. If you set it up on 160m and aim for beginners you'll have a problem, since they're not allowed on that band. So, the audience is based on the rules of the contest and of course one influences the other.

    Once you've got a defined audience, and no, all the amateurs on the planet is not a valid audience, since by that metric you could also say all the taxi-drivers in New York city, and while that is a defined group, it's unlikely that you'll find much in the way of participation in your amateur radio contest. That's not to say that there isn't a New York cabbie who isn't also an amateur - hi - but their amateur status is not the same as their taxi-driver status, so pick an actual defined audience. The more defined, the better.

    Let's say for a moment that your audience is amateurs who've been in the hobby less than a year who live within 1000 km of you.

    Now your task is to figure out how you're going to talk to them, what you're going to say and how you're going to encourage them to be part of this wonderful contest.

    You could target the local amateur schools, and ask them to send out an email on your behalf to promote your contest, or you could approach the local radio clubs and ask them to promote your thing to their new members. You could seek out local radio nets that cater for new amateurs, you could write articles for the local radio magazine, or you could post comments on your favourite social media outlet.

    None of these things are particularly difficult, onerous or complex, but not doing them means that your contest is doomed before it starts.

    So, now you have an audience and some outlets for communication. What do you say?

    I've seen contest promotions that list the frequencies and link to the rules. That's it. Not very inspiring. I've seen promotions that state that they're aimed at a particular audience, but the rules indicate that you'll need to have a particular license in order to participate because the bands or modes exclude the audience. All these messages achieve is the opposite of promotion. People know to avoid this contest, rather than feel inspiration to participate.

    So what should your message be?

    First of all, it should be written one-on-one. You're listening to me right now. The fact that there are other people also listening is not relevant to you. Every communication is like this. Everyone experiences communication as a message to themselves, to their needs, emotions, desires, motivation, just me and you, talking. Of course there are messages intended for a stage, but this is not one of them. We're not in Wembley stadium and I'm not on stage encouraging everyone to wave their hands in the air right now.

    So, write your message to a single person. The better you can imagine that person, the better the message works.

    The information in the message needs to be heard, so you need to find a way to relate to the person listening, it needs to resonate in some way. You need to be able to elicit a "Noooo", or a "Yes!" from the person listening.

    There's a contest that encourages you to set up a Jolly Roger and speak like a pirate on air, simply to find something that makes it stand out and be memorable.

    Your message needs to do that, stand-out and be memorable.

    The first place to look is inside yourself. What would make you want to do this contest, what would motivate you, how would you benefit from this contest, what would you gain?

    So, find an audience, figure out how to talk to them, determine what you want to say and then do it. Of course, this doesn't just apply to a contest, it applies to courses, to radio clubs, to swap-meets, to technical talks, anything you want to have people come and play.

    What are you waiting for! Amateur radio promotion isn't hard, but you have to actually do it.

    I'm Onno VK6FLAB


    eBook Volume 2 - short Feb 07, 2018
    Show notes

    Foundations of Amateur Radio is now available as an eBook.

    In Volume 2 - Find the spark - follow the second year of my journey through the hobby of amateur radio, what's the point of Morse code, making contacts during lunch, Magnetic Loop Antennas, keeping your shack tidy, the identity of your callsign and more.

    Search for my callsign - VK6FLAB - on your local Amazon store to have a Look inside.

    I'm Onno VK6FLAB


    Antenna gain and polar chart magic Feb 04, 2018
    Show notes

    Foundations of Amateur Radio

    If you've ever been on the hunt for an antenna, and let's face it, in amateur radio that's pretty likely, you'll get information about the gain of an antenna. Often someone will tell you that this one has 12 dB gain, versus that one which only has 9 dB.

    As an aside, I've seen a few videos where people are comparing sound levels and mention that without the fan, there is only 3 dB less noise. What they don't realise is that 3 dB means HALF the noise.

    The same is true with an antenna. That 9 dB antenna has half the gain of a 12 dB antenna.

    In the past I've talked about gain. It's always in comparison to something else. If I say "that antenna has 12 dB gain", I'm actually saying: "that antenna has 12 dB gain when compared with an isotropic source". To jog your memory, an isotropic source is a theoretical source of electromagnetic radiation. It cannot actually exist. It radiates uniformly in all directions.

    Now when we talk about gain, we're saying that our new funky antenna radiates better in some or other direction than an isotropic source.

    As a consequence of this, it also means that it radiates worse in other directions.

    So antenna gain is a trade-off between radiating everywhere like an isotropic source, and only radiating in one direction like a laser beam. As an aside, a laser beam could be seen as an antenna for light. It radiates much better in one direction than in any other, and given that light is also an electromagnetic radiation, we're still playing in the same area of physics.

    If you've ever shone a torch light onto a wall, you'll have noticed that the light isn't uniform. There are brighter and darker areas. It's the equivalent of differences in gain. Some bits of the light are amplified more than other bits. If you compare it to something like a candle, not exactly an isotropic source, but remarkably close, you'll notice that the light is uniform.

    A torch doesn't shine from the rear, the energy from the light that's missing from the rear comes out the front and that's gain.

    Radio antennas do the same thing.

    In order to compare antennas with each other we've devised several tools, the most common is a polar plot. It's a circle that is divided into 360 degrees, and inside the circle are concentric circles with gain numbers attached to them. Often, but not always, the outside circle has 0 dB as a value and you'll see -10 dB, -20 dB and so-on as you get closer to the middle.

    Weaker signal is drawn away from the outer edge, stronger towards the edge. No signal in the middle.

    As you walk around your torch, you could record the strength of the light. Where it's strongest you'd make a mark on the edge of the chart. Where it's weakest you'd mark towards the centre of the chart.

    If you were to take your torch and take a slice through the middle of your battery, through the reflector, through the globe, through the lens and out to the wall, you'd end up with what a polar chart is displaying.

    Of course you can slice through your torch in any direction and make a chart, but traditionally, you'd slice it horizontally and vertically, or azimuth and elevation - and if you can't remember which one is which, an elevator goes up.

    A torch is generally symmetric, so both charts should be the same, unless your reflector is a weird shape at which point the two charts will likely be different.

    Antenna charts work the same way. The polar graph is showing the signal strength as you walk around the antenna - twice - once for the horizontal slice and once for the vertical one.

    As I said, the outer edge of the chart is set at 0 dB. This is because you need to compare full signal to less signal. If you are comparing multiple antennas and they all have the same 0 point, you can draw them over the top of each other and see their differences.

    This allows you to compare wildly different antennas with vastly different amounts of gain.

    I must also point out that you can get more signal strength in two ways, more gain from the antenna, but also, more power into the antenna. This means that your choice of antenna is dependent on what gain you want and how much you're prepared to pay for it.

    I could light up an omni-directional antenna with 300 kilowatts, or I could use a very high gain antenna and use 5 Watts. It all depends on your purpose.

    Final comment. Beam-width of an antenna, the main direction of radiation, is often based on where the signal strength is half, so 3 dB less than the maximum gain. That location will determine the angle, remember the chart is expressed in 360 degrees, so you'll be able to see the beam-width on the same chart.

    Polar charts, lots of hidden meaning inside a pretty picture.

    I'm Onno VK6FLAB


    Just enough radio ... Jan 28, 2018
    Show notes

    Foundations of Amateur Radio

    In the past little while you've heard me talk about WSPR, Weak Signal Propagation Reporter and I've told you about signals I've heard across the planet. The longest distance at the time was a HF report, 18656 km from Perth to Pennsylvania, very nice indeed.

    I switched to monitoring 6m, 2m and 70cm about a month or so ago.

    My reports had been pretty minimal, from my QTH to the suburb next-door and then two suburbs away. Proof that a station is working, but hardly anything to celebrate or even mention.

    The other day I came across a report a little further away, Perth to Adelaide, 2142 km away. Not world record beating, or even earth shattering, but proof that 6m propagation does have its moments now and then.

    Then a surprise contact, Perth to The Rock, not the one in the middle, or the one with the wave, the one on the Olympic Highway between Wagga Wagga and Albury, 2899 km away with 20 Watts on 6m.

    My reports aren't particularly far or amazing. You might recall Wally VK6YS who made a contact on 6m between Perth and Israel. He'd been at it for a little while, longer than I've been an amateur, but not quite as long as I've been the apple in the eye of my mother. 38 years it took for Wally to make that contact.

    So why am I making any mention of my little achievement?

    Simple really, my station and Wally's station are nothing alike. He had a large beam on 6m located on a property with few noise sources and his patience paid off.

    My station consists of a 10m antenna, that is, it's not 10m tall, it's resonant on 10m, and happens to also manage 2m. I've not actually checked to see what 6m on this antenna looks like, perhaps a project for another day, but it sits there, clamped to a metal pergola at the peak of a corrugated iron roof and connected via 20m or so of RG58 coax, cheap RG58 coax, connected to my radio that I use to host F-troop most weeks.

    I have to restart my WSPR node monitoring software several times a week since the Windows XP notepad computer it's running on crashes regularly. I have to remember to open the squelch when I finish F-troop and connect the WSPR node back up and I have to make sure that there's enough empty disk-space to make sure that I can actually log stuff.

    This isn't a sob-sob story, woe is me, my station isn't a massive station. It's more about that you can achieve these kinds of things with small and minimal resources.

    One of my friends is doing really well with a USB TV dongle decoding WSPR on a Raspberry Pi, others are using thousands of dollars of gear and everything in between.

    The point is that you too can get started without massive expense. A simple radio, something to run WSPR, which can be a Raspberry Pi, an antenna of sorts and you're on the way to check out what propagation is like around your QTH in your neck of the woods.

    Amateur radio doesn't have to be expensive, it doesn't have to be extensive, it doesn't even have to be elaborate, it can just be enough.

    I'm Onno VK6FLAB


    eBook Volume 1 - short Jan 24, 2018
    Show notes

    Foundations of Amateur Radio is now available as an eBook.

    In Volume 1 - Join the hobby - follow my initial journey through the community, what to buy when you start, how to participate in the community, things to practice, what the first steps look like once you have a license, playing in radio contests, encouragement and sharing.

    Search for my callsign - VK6FLAB - on your local Amazon store to have a Look inside.

    I'm Onno VK6FLAB


    Virtual Radio Jan 21, 2018
    Show notes

    Foundations of Amateur Radio

    There is a feeling of anticipation in the air, the year has started, there are so many different ideas bubbling through my mind that I feel like an excited puppy dog wagging its tail.

    I've been playing with a wonderful piece of software called GNU Radio, more on that in a moment.

    So, I have for a while been dissatisfied with the offerings of SDR software. There is lots of development going on, lots of new toys being invented and many different hives of activity in this area.

    It's not unlike the progression from reel-to-reel based radio broadcasting via VHS tape, to computers with audio files. There are lots of solutions solving specific problems, but there are also a group of solutions looking for a problem and only time will sift out which one is worth the effort.

    In amateur radio we deal with valves, resistors, capacitors, inductors, transistors, integrated circuits, crystals, connectors, solder and many, many different physical things.

    I'm a computer guy, have been since I was in primary school. I grok computers, more-so than any aspect of anything else. Amateur radio was intended as an escape from this world, but initially to my dismay, but now to my delight, computers are making serious inroads into the hobby. Not just as peripherals that take care of logging, messaging, propagation forecasting and the like, but as integral parts of the radio.

    I looked at GNU Radio several years ago and wasn't able to understand what it did and how it worked. I didn't have enough in the way of radio skills or vocabulary to get started, but in learning about my hobby I now have a much better understanding.

    GNU Radio is a tool, a piece of open source software, that allows you to build circuits inside a computer that process information. Not unlike how filters, amplifiers and oscillators do this inside a physical radio.

    If you want to change the behaviour of a radio, you need to alter a circuit by changing components, or re-design the circuit entirely and re-build it. Hours of planning, soldering, testing and the like, just on a hunch or an idea. It's how we've been doing development for centuries.

    GNU Radio allows you to tweak a radio on the spot, in real-time, and see what it does. The feedback loop is immediate. You build up a sequence of blocks, an oscillator, a filter, a combiner, splitter, decoder, spectrogram, waterfall, whatever and if you need it do do something else, you either swap out one of the blocks, or change one or more parameters, better still, replace a fixed parameter with a slider so you can change it while it's running to see what happens.

    For example, displaying a Lissajous figure in the real world involves two signal generators, cables, an oscilloscope, power, gain settings, timing, several hundred, if not thousand dollars worth of gear. In GNU Radio it involves two signal source blocks and an oscilloscope block, joined together. All there, three blocks, two lines and it's working.

    Making an FM receiver in GNU Radio involves a source of radio frequency information, say a $20 RTL-TV dongle and an FM decoder block. You can display it on a waterfall with a third block, or listen to it with an audio block.

    To make matters even more interesting, you can build your own blocks, transmit if your radio is capable and test all of this without ever needing to go to the local electronics store or heat up a soldering iron.

    I have no doubt that this changes amateur radio for me and I'm fairly sure it will do the same for you.

    I'm Onno VK6FLAB


    Previous 1 44 45 46 47 48 61 Next

    Related Podcasts

    Ham Nation

    1

    Ham Nation Games & Hobbies
    The Brülosophy Podcast

    2

    The Brülosophy Podcast Games & Hobbies
    Good Job, Brain!

    3

    Good Job, Brain! Games & Hobbies
    Making It With Jimmy Diresta, Bob Clagett and David Picciuto

    4

    Making It With Jimmy Diresta, Bob Clagett and David Picciuto Arts
    Waypoint Radio

    5

    Waypoint Radio Arts
    BeerSmith Home and Beer Brewing Podcast

    6

    BeerSmith Home and Beer Brewing Podcast Games & Hobbies
    footer-logo

    Contact Us

    Toll Free: 844-670-7747

    Links

    • Home
    • Top Charts
    • Networks
    • Apps
    • Independents Podcasts
    • Podcast Advertising
    • Podcast News
    • Contact Us
    • About Us
    • Analytics & Insights

    Stay Connected

      Privacy, Terms of Use & Our Code of Ethics Protecting Content Creators Copyrights