vk6flab
@vk6flab@lemmy.radio
Anything and everything Amateur Radio and beyond. Heavily into Open Source and SDR, working on a multi band monitor and transmitter.
#geek #nerd #hamradio VK6FLAB #podcaster #australia #ITProfessional #voiceover #opentowork
- Comment on Do movie actors or actress keep the skills they learned? Like no one would screw with Keanu after seeing all the John Wick films? And if they did would they just be fucked from the start? 1 day ago:
Watching the various motorcycle touring series that Ewan McGregor and Charlie Boorman made hints at some of the realities of this intersection between life and acting.
There’s several references to skills that Ewan picked up to make one or other movie and how those skills are now part of “life”.
I do seem to recall that Ewan also pointed out that these skills were incomplete, pretending to be a chef convincingly requires some actual skills, but not decades of background training.
I doubt that it’s substantially any different from learning a new hobby and moving on to the next one and starting again. You don’t forget the first hobby and are likely to use some of it in the next one. Other than being taught by an actual expert, which seems like a potential unexpected perk of acting.
In short, the journey of life is peppered with things you learn, regardless of your chosen profession.
- Comment on Personal Responsibility 1 day ago:
WTF … that’s So. Not. Cool.
- Comment on Please describe the lightning protection for your amateur radio station and specifically whether you use "lightning arrestors" (with or without the belief they will arrest the lightning). 2 days ago:
Indeed.
I concede that my wording could be open to interpretation.
- Comment on Please describe the lightning protection for your amateur radio station and specifically whether you use "lightning arrestors" (with or without the belief they will arrest the lightning). 2 days ago:
Yes
- Comment on Please describe the lightning protection for your amateur radio station and specifically whether you use "lightning arrestors" (with or without the belief they will arrest the lightning). 2 days ago:
It’s likely no difficult to actually do, just determining what’s required and permitted.
Your club is a good starting point.
- Comment on Please describe the lightning protection for your amateur radio station and specifically whether you use "lightning arrestors" (with or without the belief they will arrest the lightning). 2 days ago:
Be aware that the laws and requirements for grounding (and associated lighting protection) vary across the globe and within a country, to the point where something required in one location is illegal in another.
I’ve been attempting to quantify this in a podcast episode for years, but it’s currently beyond my resources to adequately document, let alone explain succinctly.
In my opinion your best bet is a locally licensed electrician or better yet, one who is also an amateur.
Fair warning, this rabbit hole goes deep … very deep!
- Comment on captchas like these that don't tell you which part of the text you're supposed to input 3 days ago:
Name and Shame.
The only way this is going to stop is when the organisation is either forced by legislation or embarrassed by public pressure into change.
Legislation only happens due to public pressure.
- Comment on [FoAR] Foundations of Amateur Radio - The Art of decoding a signal. #podcast 4 days ago:
Hi Kristoff,
Thanks for the heads-up on the empty data file. I think that the GitHub web interface was “helping” when I initially created the repo - since I still cannot create those from my cli. Now fixed.
I’ve added your interpretation with the sync bits to the documentation for the file. It’s a really interesting observation. I don’t know if there are more than one different types of packets, since my earlier attempt to record the data using a WebSDR failed for some unknown reason. I do know that others have also heard this signal on-air, so perhaps it’s still happening and others might share their recording.
I’d love to learn how to usse the differential signal to remove noise to see if they’re actually all the same packet, or if they are actually different. I don’t particularly want to start manually flipping bits, but then there’s only 1,461 of them, so it’s doable in a pinch.
The timing of the signal is also interesting. According to
inspectrum, the baud rate is 91.81, which isn’t any standard rate, which also makes me wonder if there is any actual information being transmitted here, other than a fixed timing signal.73 de Onno VK6FLAB
- Submitted 6 days ago to amateur_radio@lemmy.radio | 0 comments
- Comment on [FoAR] Foundations of Amateur Radio - The Art of decoding a signal. #podcast 1 week ago:
Thank you, that link was very helpful.
- Comment on [FoAR] Foundations of Amateur Radio - The Art of decoding a signal. #podcast 1 week ago:
Very interesting! I’ve installed it and attempted to look at the mystery signal, but I cannot make
inspectrumshow anything other than red. I think it’s sampled at 225144, but that’s speculation based on the filename. Any thoughts?Source file: github.com/vk6flab/signals/tree/main/recorded
- [FoAR] Foundations of Amateur Radio - Antenna modelling with genetic algorithms. #podcastpodcasts.itmaze.com.au ↗Submitted 1 week ago to amateur_radio@lemmy.radio | 0 comments
- Comment on [FoAR] Foundations of Amateur Radio - The ARRL incident of May 2024, a year later #podcast 2 weeks ago:
The lack of transparency within the various bodies within our community is disturbing. It’s not that the information is there, waiting to be found, instead it seems clear to me that it’s been withheld for reasons nobody has ever even attempted to articulate let alone justify, and frankly I think it’s harmful to the well-being of the entire pursuit of amateur radio.
- Comment on Is there something like a spreadsheet for hierarchical data structures? 2 weeks ago:
There’s a whole range of cli tools to extract and query structured data like that, but you might consider loading it into something like sqlite3 and treating it as a database because those formats are really not intended for queries, they’re designed for sharing data.
- [FoAR] Foundations of Amateur Radio - The ARRL incident of May 2024, a year later #podcastpodcasts.itmaze.com.au ↗Submitted 2 weeks ago to amateur_radio@lemmy.radio | 2 comments
- Comment on [deleted] 3 weeks ago:
For some workloads it’s true that you can do the heavy lifting on a more powerful remote machine and transport the results back to an endpoint device like a phone. Websites are a good relatable example of that, as are services like YouTube.
It’s not universally applicable for many activities that computers are involved with, data analysis, record keeping, simulations and a myriad of other processes.
Blurring of the lines between these different orders of magnitude is made possible by faster and faster networks, but that’s physically not able to beat processing done inside a single device.
The more powerful we make computers, the more complex problems we use them for. I suspect that this is unlikely to change as computers evolve.
- Comment on [deleted] 3 weeks ago:
One of the fundamental differences between phones, laptops, desktops, and beyond is size. While that sounds obvious, it also means that the amount of processing within the device is constrained by that size.
The constraints relate to how much energy can be used by each device and more importantly, how much cooling is available for the system.
It means that there’s a physical limit on how much work each device can do without being unusable.
While miniaturization is a factor, it’s not linear and you can only get so small before you fail.
So, depending on what you want to do in any given time, the device you use will dictate what’s physically possible.
- Comment on Did anyone who is not a member of the #ARRL receive an email about #LoTW, or is it just me? 3 weeks ago:
QSL … thank you.
- Comment on Did anyone who is not a member of the #ARRL receive an email about #LoTW, or is it just me? 3 weeks ago:
Just to make sure, you’re not an ARRL member?
Are you an active LoTW user?
- Submitted 3 weeks ago to amateur_radio@lemmy.radio | 6 comments
- Comment on [FoAR] Foundations of Amateur Radio - The Art of decoding a signal. #podcast 3 weeks ago:
Very interesting! I just recorded a sample using your WebSDR, much appreciated.
- Submitted 3 weeks ago to amateur_radio@lemmy.radio | 6 comments
- Comment on [FoAR] Foundations of Amateur Radio - The Art of decoding a signal. #podcast 3 weeks ago:
That’s very interesting. I thought it was a once-off, but you appear to be saying that it’s ongoing. I currently don’t have HF capabilities, so I reported on a recording made by a fellow amateur.
As far as figuring out where it comes from, the direction finding can be pretty rudimentary. Use any directional antenna and determine the direction of the strongest signal. Document it somewhere, get multiple people across the globe to do it, job done.
Feel free to record them here, seems like as good a place as any.
- Comment on [FoAR] Foundations of Amateur Radio - The Art of decoding a signal. #podcast 3 weeks ago:
- [FoAR] Foundations of Amateur Radio - The Art of decoding a signal. #podcastpodcasts.itmaze.com.au ↗Submitted 3 weeks ago to amateur_radio@lemmy.radio | 12 comments
- Comment on lemmy.radio turned 2 today! 4 weeks ago:
Thank you for making this place!
- Comment on [FoAR] Foundations of Amateur Radio - Random Serendipity #podcast 4 weeks ago:
Universal Radio Hacker playlist:
- Submitted 4 weeks ago to amateur_radio@lemmy.radio | 1 comment
- Submitted 5 weeks ago to amateur_radio@lemmy.radio | 0 comments
- Comment on Laptop drastically increasing noise floor 5 weeks ago:
I’d recommend you explore qrm.guru to determine exactly where the noise is coming from and what to do about it.