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Anyone know what the correct way of mounting one of these vacuum variable capacitors is? I'm assuming that the top and bottom parts with bolt holes are the two electrodes, but I'm not sure. :/

#AmateurRadio #HamRadio


Ballard Bridge reopened after malfunction causes traffic backup

The Ballard Bridge was shut down due to a mechanical issue on Sunday, resulting in a lengthy traffic backup.

The information about the closure was shared by Seattle’s Department of Transportation (SDOT) X.com account around 5 p.m.

SDOT says the crews are continuing to monitor the situation.

They are also running tests to make sure that everything is functioning correctly.

#Seattle #weather #wawx


Livin' in the end times. :(

  • Heavy rains and flash floods across the eastern half of the US, all the way down to Texas.
  • Heat domes all over Europe and the US.
  • Rumblings around Mount Rainier.
  • Disease spreads across the US, including diseases that were previously kept under control.
  • The US government is destroying everything that can prepare us for disasters.
  • Our species' most powerful members are doubling down on destroying Earth's biosphere.


This will never not be relevant. :(


Descendants of convicts sure are a lot better at public transport than descendants of puritans. :P

Screenshot of an OpenRailwayMap view of Melbourne, Victoria, Australia


Starting to record signals I don't recognize for later analysis. :3

#AmateurRadio #HamRadio


Who remembers back when buses pulled trams/streetcars? :P (Source)


After building the first J-pole with a fixed feed point, I followed @DD8SF 's suggestion of making the feed point adjustable. That did the trick! :D #AmateurRadio #HamRadio


Some of us knew it was coming, but so much money was put into convincing everyone else otherwise. :(


2 inches is small-time thinking. >:3


Have you tried any of these bands? :3


Made a lot of progress, but it looks like the SWR minimum is starting to creep up as I continue to shorten my dipole (which brings its ends away from the stucco walls).

(I did make sure to recalibrate after changing the frequency range, by the way.)

#AmateurRadio #HamRadio


At this point, does it look like the SWR is low enough at that local minimum for me to start trimming the antenna to move it into the 6 meter band? #AmateurRadio #HamRadio


Spent some time working on matching transformer baluns with @DD8SF today and after winding all kinds of them only to run into far too much inductance for 6 meters, they suggested a parallel coax balun like Figure 24.72 from the Antenna Book, with four turns of the parallel lines around an FT240-43 core. (RG-174 was the only coax I had that was thinner than the "400MAX" I usually use.)

Unfortunately, as it stands, the pictured setup still has an SWR that's too high. :(

#AmateurRadio #HamRadio