Shek N1SAT

I tinker, therefore I am.

[Shek N1SAT @mshekleton]

Took two years to build. This satellite chaser was put to the test this weekend during #ARRLFD

[Shek N1SAT @mshekleton]

Welcome to the foom

[Shek N1SAT @mshekleton]

The most annoying thing about RAM being so expensive is that I have to care about memory management again.

[Marco Reps @MarcoReps]

there's gotta be something wrong with RF people

[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

[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.

[Shek N1SAT @mshekleton]

@elonmusk But it's ALSO shooting people in the face

[Shek N1SAT @mshekleton]

... unless the ruled collectively act against the rulers

[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...

[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.

[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 🤷‍♂️

[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.

[Shek N1SAT @mshekleton]

New radome who dis??

[Shek N1SAT @mshekleton]

@elonmusk Ever heard of quantum suicide?

[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.

[Shek N1SAT @mshekleton]

@PeterRVincenzo @LindseyGrahamSC Maybe he is joking, but it's a little too on the nose

[Shek N1SAT @mshekleton]

Argh.... Don't flush your IP tables over SSH if you're working from home 🤦‍♂️

[Shek N1SAT @mshekleton]

https://t.co/S6XyeY7oy9

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

[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.

[Shek N1SAT @mshekleton]

@Jakub8632 Why do you think I'm testing it 😜

[Shek N1SAT @mshekleton]

Can't figure out why people keep giving me shifty looks at the coffee shop