Posts Tagged ‘homebrew’

ANSRTrack Program Development using QT5

This post is about the software development and distribution of my new linux-based High Altitude Balloon Tracker program.

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Thunderbird Hamfest 2019

One of my favorite hamfest did not disappoint me this year. I always find good bargains on tools and equipment at this hamfest. My first purchase was an MFJ-267 1KW Dummy Load/Wattmeter.  The seller had all of his equipment priced at the exact same point – $68.00.  That seemed a good enough price that I […]

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HP 8640b Signal Generator Gear Set Replacement

Back in April of 2016, I bid on a Hewlett Packard 8640b signal generator to upgrade my test bench at home.  This was from a local seller, and I won the bid for $115.00 + $20.00 shipping, for a total of $135.00.  I figured for that price, I couldn’t go wrong.  In working condition, these […]

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ANSR – Arizona Near Space Research work

After having taken a break for a few years, I have renewed my membership in the Arizona Near Space Research group.  This is a club that specializes in high-altitude balloon launches that carry payloads typically designed and built by students ranging from Jr. High to Post Graduate levels.  I was involved in the club shortly […]

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A 24 Volt Sealed Lead Acid Battery Charger (Part 3)

In Part 1 of this project, we covered the general design of the battery charger.  Part 2 described the physical construction of the charger.  In Part 3, we will cover the calibration and operation of the charger, and present the Arduino Nano source code for the project. Once the board was populated, I isolated the […]

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