Lessons Learnt

Lessons Learnt

Author: Onno (VK6FLAB) September 28, 2019 Duration: 4:01
Foundations of Amateur Radio

Lessons Learnt

Learning to me is an ongoing process. For some reason that's not a universal experience. I've met people who cram for an exam, pass their test, get the certificate and hang out their shingle. The retained knowledge is spotty and vigorously defended as the final word on the topic.

It's never been like that for me. I tend to walk through life intensely curious about the how and why of a thing.

Take my recent adventures operating a new to me radio with a new to me antenna in a new to me location. It went sideways, fast, with little direct evidence of the experience to show for itself.

I did learn several things.

I expected that having switched on the radio at home, transmitting into a dummy load and receiving was enough to prove that the radio was operating normally.

The fact that I didn't hear anything and didn't know if that was because of my set-up or the radio itself was not helpful.

I expected that bringing a long-wire with a multi-tap un-un would guarantee that I'd be able to operate on any band.

The fact that I got a high SWR everywhere didn't tell me what the cause was and not having access to my testing equipment made troubleshooting much harder.

I expected to plug the radio into the car and brought battery terminal clip adaptors and a cigarette lighter plug adaptor to facilitate this.

I didn't expect to operate separate from the car, hadn't considered that the voltage might drop below acceptable and didn't know how fast that might happen. I sort of expected that the radio would have a voltage display, but so far that's eluded me. I even have an in-line Volt meter back at the shack, would have been more useful than the torrid I packed.

I expected that the length of the power leads would be sufficient to comfortably install the radio into the car and operate without having to be mindful of where to put my feet.

I didn't expect that the power lead was only just long enough to place the radio in the passenger side foot well and didn't offer any flexibility at all.

I expected that I had taken with me enough in the way of connectors and adaptors to connect various antenna options together.

I did. I managed to bring one surplus item which couldn't be connected and didn't need to be either.

I expected that my coax patch lead was sufficient to have the radio inside the car and the antenna outside the car.

It was. Just.

I expected for planning purposes that Google Maps would work the same as it does at home. Satellite and street views pretty much in sync and roads shown on the map actually existed.

It didn't. The satellite view was current, street view was 11 years old for some streets, pre-building boom, pre-cyclone, pre-historic pretty much. There were roads indicated that didn't exist, couldn't exist, had never existed and would never exist. The place I stayed at has been there for more than a decade, but Google Maps shows me surrounded by water. The local board walk has been there for over 30 years, but Google doesn't know it exists.

I expected to be able to get anything missing from my kit with little trouble from local big box stores.

In reality, the local electronics dealer is an authorised stockist of a well known brand, capable of ordering in most stuff, but a full brand store with actual stock was well over 100km away.

I expected that buying a battery locally might cause weight issues for packing luggage.

In reality, shipping batteries across the country is non-trivial and in many ways should be budgeted as a disposable item, since shipping is likely to be either not permitted, or cost as much or more than the original purchase price. It boggles the mind how these batteries actually arrive at the shop where you buy them, but no doubt that's above my pay grade.

I'm sure there's more to learn from my adventures, but I'm happy to have experienced this to add to my skill set as a radio amateur.

What learning have you been exposed to when you least expected to be?

I'm Onno VK6FLAB


For anyone curious about the crackle of a distant voice emerging from the static or the thrill of making a contact across the globe using nothing but radio waves, Foundations of Amateur Radio offers a friendly, steady guide. Hosted by Onno (VK6FLAB) from Australia, this long-running podcast acts as a companion for newcomers navigating the initial, often overwhelming, steps into this vast hobby. Each episode deliberately unpacks a single facet of amateur radio, breaking down technical concepts, equipment, and operating practices into digestible pieces. You'll hear practical advice on how to get started, find your place within the global community, and discover which of the hobby's countless avenues-from building antennas to satellite communication or emergency service-might spark your passion. It’s not about dry theory; it’s about demystifying the process and sharing the genuine rewards that keep enthusiasts engaged for a lifetime. Having evolved from its earlier incarnation in 2011, this podcast builds from the ground up, week by week, creating a solid resource that grows with you. Tune in for a down-to-earth conversation that makes the airwaves feel a little more accessible and a lot more inviting.
Author: Language: English Episodes: 579

Foundations of Amateur Radio
Podcast Episodes
What's allowed on our bands? [not-audio_url] [/not-audio_url]

Duration: 5:20
Foundations of Amateur Radio Recently there was a discussion on social media about the legality of various types of transmissions. Before I get into the specifics, it's worth looking at some of the rules around this. I w…
Your Software Defined Radio around the home [not-audio_url] [/not-audio_url]

Duration: 4:57
Foundations of Amateur Radio What would you do if you found that at random times your garage door opener didn't work, or the Wi-Fi network dropped out, or you couldn't switch off a light with an RF controller? That's the…
The Software Defined Radio vs. Traditional Radio choice [not-audio_url] [/not-audio_url]

Duration: 3:47
Foundations of Amateur Radio For some time I've been explaining how some of the internal workings of a Software Defined Radio operate with a view to getting into the nitty gritty of the why and the how. This exploration…
The Regulator [not-audio_url] [/not-audio_url]

Duration: 4:32
Foundations of Amateur Radio From time to time our hobby changes. While the idea that we're all a bunch of old men playing with spark gap transmitters, or using strange noises to the annoyance of others, the reality of a…
From Milk to Direct Conversion in a Software Defined Radio [not-audio_url] [/not-audio_url]

Duration: 4:48
Foundations of Amateur Radio It seems my analogy with milk glasses hit a nerve when I explained some of the inner workings of a simple Analogue to Digital Converter, also known as an A/D Converter or ADC as part of my ex…
Milking Software Defined Radio [not-audio_url] [/not-audio_url]

Duration: 3:16
Foundations of Amateur Radio One of the unsung hero components of a Software Defined Radio is the A/D or Analogue to Digital converter. Its job is to convert the analogue signal that's coming in via the antenna into a di…
When digging gives you more understanding, the magic of software. [not-audio_url] [/not-audio_url]

Duration: 5:20
Foundations of Amateur Radio Today I'm going to go sideways to move forward. In amateur radio we consider circuits, components such as transistors, inductors, capacitors, crystals and how they're connected to each other.…
Software Defined Radio offers another path to the same information. [not-audio_url] [/not-audio_url]

Duration: 5:05
Foundations of Amateur Radio Over the past few weeks I've been describing how some of the fundamental concepts of software defined radio work and how some of these operate and interact with each other. You might think of…
Digital Origami in Software Defined Radio [not-audio_url] [/not-audio_url]

Duration: 4:31
Foundations of Amateur Radio As a quick recap of what I've discussed before, a Software Defined Radio is a tool that essentially measures the voltage at the base of an antenna system and sends that to a computer for proc…
SDR: How many colours inside a Software Defined Radio? [not-audio_url] [/not-audio_url]

Duration: 6:39
Foundations of Amateur Radio If you were asked to make an image of the Sydney harbour bridge and only use four dots, the viewer might struggle to determine what was the bridge, the sky, the water and the Sydney Opera Hou…