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This is pretty cool. The single loading coil in the middle doubles as an impedance matching autotransformer. 👀
Shrinking the Dipole: Building the Shorty Forty Antenna for 40M Band — VU3DXR
The 40-meter band (7 MHz) is a cornerstone of High-Frequency (HF) amateur radio, but a full-sized half-wave dipole for this band is about 66 feet (20 meters) long. For hams with limited space, this can be a serious challenge!. Enter the “Shorty Forty”—a classic solution that uses loading coils to achieve excellent performance in a much more compact footprint.
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"Old Puyallup River Bridge"
This bridge originally carried SR-167 across the Puyallup River. As it was rather narrow and in poor condition, it was in need of replacement. To do so, WSDOT simply moved the old bridge out of the way while building the new one.
"On the Centennial Trail"
The trees were prolific on this ride!
#333fabsporttouring #bicycle #bicycleinfrastructure #biking #cycling #mywork #park #photog #photography
Then you just need to close it up again with a case that fits.
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"Neil and Crust Romanceur"
The Crust Romanceur is treating me well so far. Stem length seems fine, so I have a Nitto UI 12 stem on the way.
#bicycle #biking #crustromanceur #cycling #cyclist #mywork #photog #photography
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Benedikt Bauer
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