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Showing posts with label digital. Show all posts
Showing posts with label digital. Show all posts

Friday, May 23, 2025

G0UPL at Dayton: SSB for the QMX, and Thoughts on Homebrewing

 
Click on the diagram for a better view.

Listen to the interview here: 


I think this is what Grayson was talking about when he said that Hans is a genius, and that his SSB project for the QMX was very complicated.  On his website Hans says as much:  "This is a very complex project."  Indeed it is.  Just take a look at the bloc diagram above.  This is not for the faint of heart.  In this interview, he talks about a full year of intense work on SSB for the QMX.  Wow. 

I think Hans makes some good points on why we still homebrew.  I liked his fish analogy:  we can buy all the fish we want at the supermarket, but people still go fishing.  Why? Because they like fishing.  

I'm not too sure about "the IKEA effect."  He seems to be saying that people derive homebrew-like satisfaction from assembling IKEA furniture.  Well, maybe some people do, but I think this is a long way from what we would consider true scratch-built homebrew.  Dean KK4DAS, for example, recently observed that he assembled two IKEA tables, but that this assembly does NOT make him a carpenter.  This is related to our discussion about the differences between ham radio kits and true homebrew:  IKEA flat packs are like the kits.  I think Hans is right about the pride and satisfaction that people get from building their own radio gear.  

Thanks to Hans GOUPL and to Bob W8SX for doing this interview. 

Sunday, February 16, 2025

Why Should We Build Analog Gear When the World has Gone Digital?

Our friend Todd (Vasily) had recently been thinking about this on his excellent Popcorn Electronics blog: 

https://qrp-popcorn.blogspot.com/

There are many answers to this question.  Todd's post made me think about a message from Farhan VU2ESE on this same subject. See:  https://www.vu2ese.com/index.php/2022/08/04/daylight-an-all-analog-radio/ My comment and a quote from Farhan appears below: 

Hello Todd!  I have been thinking about the same things.  As you know there is a lot of magic in using gear that you have built yourself.  And it is still possible to do this.  But I think the builder has to make some choices:  Building it yourself might -- as you say -- require you to move away from the perfection, bells and whistles of the modern ICOM 7300 style rigs while embracing the simple functioning of analog rigs.  Farhan was thinking of this three years ago: 

"So here we are, talking analog radios in 2022.  Here is the memo : The analog never died. The world is analog all the way, until you descend into Quantum madness. The antennas are analog, Maxwell died a content, analog man. Our radios, ultimately, are analog machines and we are all analog beasts too. Amateur Radio technology has evolved into the digital domain. However,  it has only made it easier for us to do analog with computers to simulate and print our circuits.  So, it’s time to bid good bye to our Arduinos and Raspberry Pis and build an Analog Radio for ourselves. So let’s see what we can achieve in hindsight, a return to our native land and a rethink of our approaches. The radio is called Daylight Again, a nod to being back at the FDIM in 2022 after a gap of two years. It is named after the Crosby, Stills, Nash and Young’s song that had been humming all the time while put this radio together, emerging after 2 years of lockdown.  This radio that took two days to come together, no actually two years! That’s: parts of it got built and stowed away, thoughts were struck in the shower, questions popped up during early morning cycle rides and notes and circuits were scribbled in the notebook.  I must take the first of many diversion here: I hope you all maintain a notebook. Write down the date and whatever you thought or did on the bench and the result. Nothing is trivial enough to leave out. Wisdom comes to those who write notes.  I started to build this on Saturday the 14th May and I checked into the local SSB net on Monday morning, the 16th May 2022. Back to the radio.  What can an analog radio do that will appeal to us homebrewers?"

More to follow.  73  Bill  Hi7/N2CQR 

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