Bad art. Electromechanical doodads. Stats.
Nuclear cooling towers or tank stands
These tanks are awfully tippy when connected to a Little Torch. Not so much anymore.
TDR with the NanoVNA
The performance of my satellite downlink station is nowhere near as good as I would like. I been doing some various troubleshooting measures to try and figure out what is going on. In my previous post, you can see some of my explorations about antenna tuning. In this post I took my first pass atContinue reading “TDR with the NanoVNA”
I cut it twice and it’s still too short!
For my satellite ground station I built an antenna from the plans by WA5VJB http://www.wa5vjb.com/references/Cheap%20Antennas-LEOs.pdf I originally built a 7 element 70cm antenna. But then added on a two element 2m one. While I had tuned the 70cm antenna, it was tuned a little too low after the second cut to shorten the driven element.Continue reading “I cut it twice and it’s still too short!”
abandoning Pi-Hole for cloudflared
I’ve been using Pi-Hole for a while and it just caused too many problems. Many shopping carts across the web would just fail. I need to run google ad campaigns and you can’t get to the admin UI. Therefore I decided to move dns resolving back to my ER-X and instead use cloudflared to resolveContinue reading “abandoning Pi-Hole for cloudflared”
Satellite Fun
I’ve been slowly working towards building a satellite uplink and downlink station for years. I have finally reached a point where I finished building the station and have Receive some signals. The performance is rather abysmal, I still have a fair amount of work to do.
Wrench Holder
Seattle is due for a big earthquake. Our wrench for our water barrel and emergency gas cutoff was always going walkabout. I whipped up this little holder so it has a home to live on the back of our front door.
Causal Inference Resources
I was inspired by the post “Why you should stop worrying about deep learning and deepen your understanding of causality instead” to write up some of the resources I’ve used over the past year as I myself have tried to learn more about causality. The field of Causal Inference has become much more rich andContinue reading “Causal Inference Resources”
Date Based Cohort Analysis for Adobe SiteCatalyst using R
Over the years I’ve generally avoided Excel. Being a programmer, I could just pick up python and write code to do what I needed, I didn’t need to hack something together in Excel. But I always ended up back there for the charting. Then I learned R and have even more reason to avoid Excel.Continue reading “Date Based Cohort Analysis for Adobe SiteCatalyst using R”
The Lean Startup Movement from a Decision Science perspective
First off, my apologies to actual Decision Scientists. I have no formal training and just recently learned that the area I’m fascinated by actually has a name. There are a lot of anecdotes out there about how wonderful all the different Lean Startup methodologies are. If you go and read the Amazon book reviews, you’llContinue reading “The Lean Startup Movement from a Decision Science perspective”
The Lean Startup Movement and the Quant Uprising
I’m building my first new product in over a decade. I started my career back in 1993 as a black box tester on Media 100. I joined the team just as the first engineering prototypes were coming in from manufacturing, well prior to shipping v1.0. After that I helped create Adobe ImageStyler 1.0 in 1998,Continue reading “The Lean Startup Movement and the Quant Uprising”
Recovery from CFS/Post Exercise Syndrome
Back in my original post about my electric bike conversion I mentioned that I had CFS, aka Chronic Fatigue Syndrome. CFS is a poorly defined health condition that in my opinion actually covers a number of very different health conditions. I’m glad I never really accepted it as a diagnosis from the rheumatologist that mentionedContinue reading “Recovery from CFS/Post Exercise Syndrome”
Lean Startup Book Roundup
Earlier this year I got involved with using Lean Startup techniques to help with a new business inside of Adobe. As is my normal style, I read a large number of books to help get my head around the techniques and build up a base of knowledge I could use in the future. AsContinue reading “Lean Startup Book Roundup”
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