I worked the flea market at Hamvention 2024 in the rain, first thing Friday morning. There were some good finds.
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Four Days in May (FDIM) is an annual event where QRP fans gather for a symposium, and other activities such as electronics competitions, home brew demonstrations, and sharing ideas and information.
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Derek W7DLZ and I hiked to the top of Pentagram Crater to participate in Summits on the Air. For this activity, amateur radio operators hike specific summits with ham radio gear. If we contact 4 other stations, we revive points for the "activation"
This Manhattan Circuit Construction Technique for Homebrew Ham Radios is very common with ham radio homebrewers. Doug DeMaw, W1FB, wrote an article titled ”Quick-and-Easy Circuit Boards for the Beginner” detailing construction using what is referred to as dead bug or ugly construction. In the same article by Doug DeMaw, Figure 3 shows the use of printed circuit board squares glued to the main printed circuit board. The squares are used to solder component leads to for common electrical and mechanical connections. This technique is attributed to Wes Hayward, W7ZOI, and Wes suggested using hot glue as a fixitive to hold the pads in place.
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I am amazed at how many peaks I have hiked to the top of, in Arizona, that have ruins on them.
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This is the third board I have built as part of my homebrew ham radio project. The Signal Source is a great piece of test equipment.
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Morse code keyers have multiple uses. Some are built into modern ham radios, but some are external stand-alone.
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