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Welcome back, Jeff Keyzer (@MightyOhm)!
- Jeff has been selling the MightyOhm Geiger Counter Kit and other products on Amazon
- He has also been consulting lately, helping clients with hardware certifications, regulatory compliance and EMC.
- These are separate tasks from product safety
- RyanAir is buying 737-MAX airplanes
- ESD is part of EMC
- UL testing
- CE combines EMC and product safety
- Radiated emissions testing
- Worst case testing
- We have had experts on EMC on in the past
- Near field vs far field
- H field and E field are separate
- Standards are changing for LiIon
- IEC60950 was the main standard for a long time
- IEC 62368 is replacing some of these standards
- Polluted rivers in Cleveland caused the Nixon administration to start the EPA
- Head tax in Seattle
- Chris and Jeff have both been living in/near the civil unrest happening in the wake of George Floyd’s murder. The news plays up what’s happening during protests, which are mainly peaceful.
- The Chaz
- Economic impacts of COVID
- Jeff has been working with older versions of Altium
- Mentor changes its name to Siemens EDA
- The Fusion / Eagle integration continues
- The KiCad dev conversation that happened at “KiCon 2020” talked about the features coming in v6
- We wanted to ask Jeff about abunch of the RF components we didn’t understand in Episode 520
- The main one was the power transistor and how it is tuned to particular frequencies
- Miller capacitance between gate and drain
- “Cut and try engineering”
- Chris is still reeling from the Adrian Tang episode, with all the things he talked about.
- Jeff was working on devices that went into WLAN and the now-defunct WiMax
- All of the designs Jeff worked on were Gallium Arsenide
- Former guests/sometimes co-host Piotr Esden-Tempski is running a new crowdfunding campaign for the Glasgow Interface Explorer (rev C)
- Mark Rober is running a paid engineering course. Does it cost too much?
- “Sounds like MBA projects”
- Jeff has taken Tufte’s visualizing information class
- Joe Barnard on the CE Podcast
- Starting real projects
- Looking to relax? Watch Nick Offerman drink scotch in front of a fire in a “Yule Log” style video (for 10 hours!)
Many thanks to our Patrons, for this and all the other episodes throughout 2020! We would be nothing without them. Check out Patreon.com/TheAmpHour if you’d like to join the crowd. A special thanks to our corporate sponsor Binho, who now distribute the Sensepeek PCBite.
That’s a wrap on 2020! Thank you for listening!!
I probably started listing to the amphour like 3 weeks before 2020 and since that i never missed an episode
It is really awesome to know the knowledge you can get from engineers goofing around
Keep it up
Yep, Altium changes are a pain, I use the tool since 1998 and version upgrades usually where no big deal.
I made the mistake of making the upgraded when the workload was very low during the pandemia, but then it increased and had to work on in 7 designs in a very short time frame. That was not the issue, the issue was that with the upgrade my productivity whent to the drain together with my holiday break.
You can spent hours looking how where the option is located, or how to do this or that that it was usually very simple. Or a particular feature does not exist anymore.
Saludos !!
Chris and Dave
This was one of the best episodes of the year. Closing off to a strong finish.
Thanks.
I’m far from the expert but I think it’s not that the E and H fields combine to make the radio wave, they are always “separate” fields, albeit of the same signal. The magnetic field (H-plane) is localized to the antenna just like any coil of wire with an AC signal on it while the radio wave (E-plane) is the emission of the photon wave/particle duality thing. This happens on, in, or near the surface of the antenna and follows the inverse square law for loss in free space.
I guess I see what you’re saying Dave, perhaps it’s your use of the word “combine” that threw me. https://en.wikipedia.org/wiki/Near_and_far_field
CAD tools aren’t the only thing. Imagine all the BILLIONS of man-hours lost every year to needless software changes in business, home economy, hobby, you name it. Technology and society in general would probably be five, if not ten years into the future if people could learn new things that could be used together with what they already knew instead of having to re-learn everything, never to use the old knowledge again!
Personally, I have nothing against raw capitalism when it comes to physical products, having a cost of production, but freely copyable information should be just that – free. That philosophy comes straight from Rick Falkvinge (Pirate Party), and I can only agree. The correct answer to the old anti-piracy slogan “you wouldn’t steal a car”, is “no, but I’d gladly copy it if that was possible”.
And yes, making the information in the first place has a (time-) cost, but it is not a per-unit cost, and hence should not be considered one. If you have the time and will, do it. Otherwise don’t. Simple as that.
Also personally, I don’t understand why paying for education would make me pay more attention to it. I already have a goal for taking part of it, whether it’s for a specific project or just entertainment. In my book, paying for it is just one more obstacle for reaching that goal, making it less likely to happen.