Shek N1SAT

451 posts

Shek N1SAT

Shek N1SAT

@mshekleton

I tinker, therefore I am.

Connecticut เข้าร่วม Haziran 2009
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Shek N1SAT
Shek N1SAT@mshekleton·
Took two years to build. This satellite chaser was put to the test this weekend during #ARRLFD
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Marco Reps
Marco Reps@MarcoReps·
there's gotta be something wrong with RF people
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Shek N1SAT
Shek N1SAT@mshekleton·
I'll post some photos next time I do it. You can check out copper playing 3D prints on YouTube. All you need is copper sulfate pentahydrate and 1M sulfuric acid and a copper anode (can just buy this stuff on Amazon). Use a current limited power supply. The parts have to be initially painted with conductive carbon paint to kick start the electroplating. There's lots of videos on YouTube on how to do it. 25-50 uM of plating thickness is plenty for anything you want to do. 3-5 skin depths minimum. Here are the skin depths at direct frequencies: 1 GHz: δ ≈ 2.1 µm 2.4 GHz: δ ≈ 1.35 µm 5.8 GHz: δ ≈ 0.87 µm 10 GHz: δ ≈ 0.66 µm 20 GHz: δ ≈ 0.47 µm
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Tiago Baroni
Tiago Baroni@tbaroni·
@mshekleton That’s a really interesting approach. Electroplating 3D printed feeds hadn’t crossed my mind. Any resources you’d suggest so I can understand the process better @mshekleton?
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Tiago Baroni
Tiago Baroni@tbaroni·
Started documenting early-stage work on a 1420 MHz HI feedhorn prototype. 3D-printed horn with internal aluminum lining, brass probe, and a minimal RF chain to validate geometry and electronics before moving to a dish. This is about engineering, not results.
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Shek N1SAT
Shek N1SAT@mshekleton·
@elonmusk The fuck are you talking about.... My brothers, sisters, and I who served together (of different cultures, mind you) would have all died for this multicultural nation.
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Elon Musk
Elon Musk@elonmusk·
For a country to survive, there has to be a common culture. Nobody dies to defend a “multicultural economic zone”! American culture, with its English-Scotts-Irish origin, is great and worth fighting for. Some may not realize it, but that’s why people come here. 🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸
ib@Indian_Bronson

Important segment starting at 25 : 39 in Tucker’s video on who is a “Heritage American”, a now necessary term. A young Anthony Scalia, future Supreme Court justice, upholding Anglo-American law, consciously bristled at his ethnic and religious distinction from the WASPs whom foreign professors assigned a foundational status. But then he went to England and saw it and felt it;

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Shek N1SAT
Shek N1SAT@mshekleton·
@elonmusk But it's ALSO shooting people in the face
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Shek N1SAT
Shek N1SAT@mshekleton·
... unless the ruled collectively act against the rulers
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Shek N1SAT
Shek N1SAT@mshekleton·
The Epstein scandal, not merely in its revelations but in the calculated redactions, coordinated silence, and decades of concealed wrongdoing, has illuminated a fundamental reality of our society: There are the rulers and there are the ruled. Abuse of power by the most powerful does not have consequences...
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Shek N1SAT
Shek N1SAT@mshekleton·
New Years Day sucks as a holiday. I feel much more connected to something like the winter solstice than I do to some arbitrary Gregorian calendar date.
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Shek N1SAT
Shek N1SAT@mshekleton·
Progress! Found the brake solenoids and working out position feedback circuit. I was lucky enough to find a five phase motor controller on eBay but who knows if it will work 🤷‍♂️
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Shek N1SAT
Shek N1SAT@mshekleton·
Picked up this x-y mount with no nameplate, no documentation, no information. Was controlling a six foot dish inside a radome. These are five phase motors with the windings in star configuration. 2.25 ohm coils. I'm not sure if these are stepper or synchronous motors, or what voltage/current this should run on. If this looks familiar, please let me know so I don't have to open the motor casings up.
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Shek N1SAT
Shek N1SAT@mshekleton·
New radome who dis??
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Elon Musk
Elon Musk@elonmusk·
We cannot understand the true nature of the Universe, unless we question deeply. I want to know what is real, even if the answer is total obliteration of my consciousness.
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Vikram Sekar
Vikram Sekar@vikramskr·
Generative AI meets RF circuit design = game changer • Passive networks tailored by diffusion models. • Specify stop-band/pass-band; AI does the rest. • Pixel patterns are not intuitive to electrical response. Designs getting more abstract. Prepare for a cognitive shift.
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Ru₿enHODL
Ru₿enHODL@PeterRVincenzo·
@LindseyGrahamSC There are many many, many, many, many, many many many many many many many many many many many many on the left who will take you very seriously.
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Lindsey Graham
Lindsey Graham@LindseyGrahamSC·
I was excited to hear that President Trump is open to the idea of being the next Pope. This would truly be a dark horse candidate, but I would ask the papal conclave and Catholic faithful to keep an open mind about this possibility!   The first Pope-U.S. President combination has many upsides. Watching for white smoke…. Trump MMXXVIII!
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Shek N1SAT
Shek N1SAT@mshekleton·
Argh.... Don't flush your IP tables over SSH if you're working from home 🤦‍♂️
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Shek N1SAT
Shek N1SAT@mshekleton·
msn.com/en-us/news/tec… Space is no longer the final frontier—it’s the newest operational domain of warfare. China’s orbital “kill mesh” makes it a critical and mostly unobserved battlespace. Civilian space observers matter now more than ever. #SpaceWarfare #OSINT #SatTracking
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Shek N1SAT
Shek N1SAT@mshekleton·
@alice_und_bob Great question. Most of the time it isn't necessary. Sometimes a public, immutable, decentralized ledger is. But mostly not.
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Alice und Bob
Alice und Bob@alice_und_bob·
Wait so can anyone explain why we build Web3?
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Shek N1SAT
Shek N1SAT@mshekleton·
Can't figure out why people keep giving me shifty looks at the coffee shop
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SirHaXalot
SirHaXalot@SirhaXalot_·
KrakenRF fieldtrip. Hunting jammers, different setups, i also working on a better way to mount the array on my car, having just a glas roof makes things a bit tricky. Maybe suction cups of some sort, has anyone some ideas? #seekOnJam #hacker #maker #sdr #cyberdeck #cyberwarfare
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