So yesterday I got to designing a RF Sampler for my little spec an, and one thing led to another and so i connected it to the FeelTech function generator, fired up a sine wave and with the maximum amount of data points over the smallest span the software would allow I took a look at how clean the signal is. Not sure about those 2 spurs, but if they are real and not artifacts, that’s not a good thing.
Its been a long time since i have used the mini cnc machine, but i got it out last night and attempted to machine up a case for the HT project. After getting the tool paths actually sorted out right and discovering that I had no sharp drills other than a 1mm one and well part way thought it broke, but i got enough done to know that the design is actually ok. So this one is scraptonium, but the next one should be much better.
Not the computer code kind, not even the hardware kind, but the stupid kind that keep trying to hack into by server and blog. Its a never ending game of wack a mole. So after been hit with a couple of big hack attacked in the last few weeks, I upgraded the security for the blog and then after the same douche bag hit me again, I managed to lock myself out of the blog. LOL not to worry, restore everything from backup takes a while 10 mins to do, but I lost a couple of posts. I only do weekly backups. Its not like this blog is anything other than a bunch of dribble from me and if i lose a post or two, its no big deal. So anyway, everything is back to normal and should mean I cannot lock myself out every again LOL.
Well its been coming for a while and today is the day that its been achieved. I am no longer a radio amateur. I am an electronics enthusiast. Yep, I am done with the people. When you have groups that lie, cheat and exploit for their own end, get exposed time and time again and other groups to gutless or hamstrung to be able to deal with it in a manner that will fix the issue once and for all, I figure, why bother. I am better than all this and so I am out.
I have some really good radio projects in the pipeline that will be released over the next 2 to 12 months. I am currently working on a 5 watt DSB hand held. Tonight I have laid out the Transmitter board, I have some fixes to make to the receiver board and I can sent those off to china to get made. I hope to have the whole project competed by the end of the year. And having quit just about all social media, I should be able to, with some luck, achieve that goal.
To just another form of CB
Marketed to shoppers
Spoonfed carton ham radio like sheep —Paraphrased, Jello Biafra.
Inspired by a post on Pete’s blog found here: http://n6qw.blogspot.com/2019/10/when-you-know-stuff-you-can-do-stuff.html I got to thinking that there are many reasons why we all should home brew. When you look at the discussion about home brew on various forums, you often hear the same excuses as why people do not home brew.
1. I am not smart enough.
Well, I am not an EE either, I am a construction worker who is as dumb as a bag of hammers and i can manage to not hurt myself or make the world explode, so I think you can do it also. I think what people really mean when they say they are not smart enough, is that they are just to lazy to put the time and effort required into learning. You passed an exam, so your obviously not dumb, just lazy. Its taken me 5 years to build a radio worth using more than once. Yes 5 years. And it will probably take me another 5 years to build something I am really happy with. These are not short term projects, there is no instant gratification here. It takes time, energy and effort to gain the skills and understanding required to be able to build a pretty decent radio.
2. You cannot make a rig as good as anything you can buy.
I agree you cannot. But you can make a rig that has utility and is good enough. Not that my home brew stuff is ever going to replace the Icoms i own. So why bother? well simply because home brewing gives you more than the radio at the end of it. Ham radio used to be about self education in radio electronics. Its now about consumerism. Where people once used skills and knowledge to solve a problem, people now throw money at it and act like this makes them the reincarnation of Marconi, Edison and Tesla. Throwing money at a problem is not a virtue, it is a cop out. If we as a hobby are going to stand for something and honour the past, then home brewing for the sake of learning is non optional.
And here is the thing. Home brewing is about learning. You learn at a fundamental level how a radio works. You learn other skills that are useful with your black box icoms like fault finding and trouble shooting. And it gives you something to talk about with others on the radio that is not the lowest common denominator dribble that many seem to think is the pinnacle of what the hobby has to offer.
Wouldn’t it be nice to get on 40m in the afternoon and have 10 other people to discuss home brew with? Actually talking nuts and bolts radio rather than politics or running thought some brag list of purchases like they are achievements worthy to be proud of? Or rather than listening to some I am not dead yet net where everyone checks in to thank the person running the net and announce they are still alive, that they come on and say, i got that thing i have been working on all week working right now. Or they ask a question and have a few really good responses. That is traffic I could listen to.
Or for that matter, the talk on DMR is not about how well the internet is propagating today and wanking on about what talkie walkie you code plug is using on your hot spot, but rather people talking about building a pixie and making it work or trying to understand why a voltage divider does what it does.
Yeah there is so much more we all could be doing and so many much more intelligent things we as hams could be talking about and dont. So many hams complain about things being dumbed down. Well, here is some space for hams everywhere to lift things on an intellectual level. I wont hold my breath though. Dumbing down is not the problem, laziness and apathy is.
Its funny, I needed a 10db gain amplifier that used a 2n2222 and being lazy and not wanting to MATH i typed into google 2n2222 10db preamplifier and low and behold, it came up with an answer that was what i actually wanted. Sorry to the OM i stole this from, i will edit this later with a link back to your site.
So anyway, I simulated in LT Spice and it was spot on, -6db input and +4db output, thats 10db and just what the doctor ordered. Who needs math when google can elmer like the best of them.