iiinova — where your digital self keeps evolving

Reposted by Justin K5EM

hforsten @hforsten.com · 14/09/2026

New blog post: Interferometric Synthetic Aperture Radar Drone hforsten.com/interferomet...

hforsten.com

Interferometric Synthetic Aperture Radar Drone

Interferometric SAR with my DIY SAR drone

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Reposted by Justin K5EM

ARISS - Amateur Radio on the International Space Station @arissintl.bsky.social · 15/08/2026

Still remembering Mike Fincke, KE5AIT (@AstroIronMike) on the subject of his retirement from NASA this week. During a Crew-11 Media Conference he talked about how Amateur Radio on the ISS allows the crew to "bring people with them" and about some of his contacts from onboard.

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Reposted by Justin K5EM

Ryan Lane @ryanlane.bsky.social · 13/07/2026

After a year plus of playing around with this side project, I have finally launched what I'm calling Mimir (mimirframe.com) It's a self-hosted platform that turns e-ink frames, old tablets, TVs, and monitors into ambient displays. No subscription. Open source. #opensource #eink #raspberrypi

mimirframe.com

Mimir — Self-hosted display management

One small server on your network, driving every screen you own. Local-first, open source, no cloud account.

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Justin K5EM @k5em.com · 25/06/2026

I don't understand this. I won't call them when they're running this fast unless I pre-copy everything. But they call way faster than I'm running and 3-5 repeats later we might get the Q. The whole process takes way longer than just slowing down to my calling speed.

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Justin K5EM @k5em.com · 31/05/2026

Wonderful time outside London picking up a couple of new SOTA badges and enjoying the opportunity to play radio with friends new and old. The best thing about this hobby is always the people we enjoy the time with along the way!

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Reposted by Justin K5EM

Ryan Lane @ryanlane.bsky.social · 24/05/2026

Juvenile bald eagles #birds

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Matt Venn @mattvenn.net · 07/03/2026

Happy to announce I won the European Open Source Academy Special Recognition for Skills and Education! @eosa.bsky.social www.zerotoasiccourse.com/post/eosa_aw...

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Justin K5EM @k5em.com · 08/03/2026

This is awesome Matt, bravo! Well deserved.

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Justin K5EM @k5em.com · 20/01/2026

It works really well. We did the 85ft one on Palau, a bit hard to put up, really need 5-6 people. The shorter ones are much more manageable, but many hands make it easier still.

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Reposted by Justin K5EM

Ryan Lane @ryanlane.bsky.social · 11/01/2026

made a new thing. I wanted to play around with the web midi api and this seemed like a fun way to do it www.futile.com/patch #music #PatchSynth #ModularSynth #WebAudio #VirtualAnalog #SynthDesign

futile.com

PATCH — Futile

Programmable Audio Topology & Control Hub: build modular synth patches in your browser.

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Justin K5EM @k5em.com · 06/12/2025

And we had an early case of a couple of logs going missing as well. Fortunately we have some cross checking that caught it, but it's a challenging job. Thank your contest organizers and give them grace, I'm sure they're doing their best with what they have, and they're all volunteers.

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Justin K5EM @k5em.com · 06/12/2025

As a contest organizer, this is my recurring nightmare. A lot of times we're working with legacy software and systems outside our direct control. I've rewritten log checking SW for Salmon Run this year, and we've done our best to cross check the results by hand, but we can't hand check everything.

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Reposted by Justin K5EM

Pongsagon vichit @mattdiygraphics.bsky.social · 03/11/2025

TinyGPU v2.0. A standalone GPU that can display a model file from Flash.Render 1K tri at 6.5fps in 320x240, 4-bit color. Tested on Basys3 FPGA. Submitted to the upcoming #TinyTapeout shuttle. more spec 🧵. git: github.com/pongsagon/tt...

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Reposted by Justin K5EM

John T (the GRA is silent) @grajohnt.bsky.social · 09/11/2025

#Hackaday #Supercon through the lens of my Googly Eye Camera

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Justin K5EM @k5em.com · 05/11/2025

Fun morning knocking out a Pasadena area favorite SOTA summit with John before the last day of SuperCon

Two men are smiling outdoors on a sunny day with mountains in the background. The man on the left has gray hair and a short beard, wearing a colorful patterned shirt. The man on the right is wearing a gray hoodie and a dark baseball cap with a round multicolor patch. They’re standing on a dirt trail overlooking a wide valley filled with trees and a distant city, with tall, rugged mountains rising behind them under a clear blue sky.

A foggy morning view from the hills, looking out over a valley blanketed in thick fog. Only the tops of tall buildings rise above the fog in the distance, surrounded by soft blue-gray layers of hills. In the foreground, a few palm trees and green shrubs stand out against the haze, creating a peaceful, dreamlike scene.

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Justin K5EM @k5em.com · 04/11/2025

I was in Los Angeles this weekend for @hackaday-feed.bsky.social SuperCon and had the chance to meet up with some of my favorite SoCal SOTA peeps @n6ara.bsky.social and Mark KD7DTS and chat on the sofa. Don't miss the earlier episodes! youtu.be/VBG_cy7qeCM

youtu.be

Justin K5EM - Building Community through Radiosport | Sofas on the Air Ep. 8

YouTube video by SOTA+

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Justin K5EM @k5em.com · 24/10/2025

LOS it would have been fine unless the repeater is unusually deaf. I have hit LA area repeaters from the 10kft ridge north of Telescope Peak in Death Valley NP with my HT no problem (250km). Easy to get into Vegas area repeaters from there too (175km). See also: working the ISS with HTs.

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Reposted by Justin K5EM

Ryan Lane @ryanlane.bsky.social · 12/10/2025

Great blue heron #birds

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Justin K5EM @k5em.com · 14/06/2025

I have a pretty similar looking interferer at the same frequency that comes on every night at sunset. It's a neighbor's garden LED light strand. They turned it off for me for a while but it's back recently so I guess they didn't replace it.

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Reposted by Justin K5EM

Jan Beutel @janbeutel.bsky.social · 28/05/2025

What an inaugural post on bsky.app. A (the) major glacier collapse at Bichgletscher/Kleines Nesthorn.

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Reposted by Justin K5EM

OTUS Project @otusproject.bsky.social · 20/05/2025

Never seen before perspective of a tornado in Arnett, OK by our research drone on May 18th. Watch the full video here on YouTube: youtu.be/NGD2e741Riw

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Reposted by Justin K5EM

N6ARA Electronics @n6ara.bsky.social · 17/05/2025

Day 2 of Hamvention 2025! Stop by Booth 5004! #hamradio

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Justin K5EM @k5em.com · 09/05/2025

Really have to wonder whose side the issue is on with Apple now a direct competitor. I've also been a long time user on Win and I've found it getting more stable and consistent of late (though there are occasional hiccups)

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Justin K5EM @k5em.com · 28/04/2025

That's a useful rule for release, but I was talking about the next section, which recommends 50-70% coverage for the EP and references the next figure with a 66% by printed area comment. The example EP land is 6mm^2, with 4mm^2 of paste. All of this is dependent on the stencil thickness of course.

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Justin K5EM @k5em.com · 27/04/2025

Where did you land at? I tend to follow the 66% coverage by area that TI recommends in their QFN guide, but I've found it's sometimes still a bit much for heavier parts.

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Justin K5EM @k5em.com · 08/04/2025

This is super interesting, did they mention the primary use case?

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Justin K5EM @k5em.com · 03/04/2025

Haha! This sunspot migration thing was a cool fact presented by @tamithaskov.bsky.social when she spoke at the WWDXC convention in 2019. I'm probably not recalling it perfectly, but that was a great talk!

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Justin K5EM @k5em.com · 03/04/2025

Sunspot numbers are one way to measure it. The other is the band of sunspots have reached the suns equator in the south and are almost there in the north. The sunspot complexes tend to migrate from the poles to the equator over the cycle and then die out, restarting again at the poles

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Justin K5EM @k5em.com · 02/04/2025

Vertically polarized Yagi usually points towards CB. Appears that there's an 11m vertical on the back patio leaning the other way too. The Amateur Radio license map also doesn't have any hams with a license address in Strong, you have to go to the next town over to find a ham.

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Justin K5EM @k5em.com · 31/03/2025

Yes, more overlap on 40m would be 👍. We chased DX on 40 anyway, but it was one station on top of another across the whole shared 75kHz. I was op both nights when 40 was open to EU and wasn't able to run with 1.5kW and 3el at 1λ. Ran JAs no prob. Lack of DX on 20 hurt. 10% lower score than last year

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Justin K5EM @k5em.com · 31/03/2025

Got it! Walk up to them, give them a pet, check their teeth and tail, then whack them over the head. We grew up with these "river rats" water skiing on the Brazos. They could be surprisingly aggressive if you happened to fall too near their nests. They'd even jump into the water and swim after you.

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Justin K5EM @k5em.com · 31/03/2025

10 barely showed for us at KZ1W. A few loud EU stations our Sun morning, enough to pick off some extra mults, but never enough to get a run going. 15 and 40 were overcrowded. We had the benefit of a good supply of JAs on 15 for a few hours after each sunset. 20 was noisy, had to point JA to hear EU.

KZ1W claimed score chart for CQWW WPX contest. Shows the most points on 21, 7, and 28 MHz. Overall 2463 QSOS for 6049 QSO points and 977 Prefixes for a claimed score of 5,909,873.

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Justin K5EM @k5em.com · 28/03/2025

Don't get a Rivian then... My BLE scoopers pick them up constantly on my Home Assistant install as they drive by. Presumably they roll something as I can't imagine over 100 Rivian have driven by.

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Justin K5EM @k5em.com · 23/03/2025

You might reach out to dk0tu.de and see if that's something any of their members might be interested in.

dk0tu.de

DK0TU

dk0tu

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Justin K5EM @k5em.com · 23/03/2025

For that a night cam with IR might work well. That's how I spot the most recent place the puppy is digging. 🐕

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Justin K5EM @k5em.com · 23/03/2025

We have a lot of wifi congestion so I set up everything wired and PoE. I haven't used the Amcrest wifi cams, but the biggest downside to most of the OTS security type cams is the very wide angle lenses make it hard to get any decent wildlife images beyond just knowing they're there.

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Justin K5EM @k5em.com · 23/03/2025

My current setup is just some Amcrest 8k cameras for wide views and one raspi HQ with a nice Edmunds telephoto lens on the hummingbird feeder (through a window). Everything feeds to the NAS for event tagging.

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Justin K5EM @k5em.com · 22/03/2025

I tried to do something similar in the past, but got caught up in the UX aspect of it. I think you want to plot the height at the midpoint of some path between nominal locations. Ultimately running the analysis was too computationally intensive for how I have SatMatch deployed so I paused work on it

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Justin K5EM @k5em.com · 25/02/2025

I should have said the whole flight crew did a great job. FA found an EMT onboard, stabilized the patient in the rear galley, rushed the cabin to landing ready, and got it done. Ambulance on the tarmac waiting and had the patient to the hospital by the time we took off again.

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Justin K5EM @k5em.com · 25/02/2025

I experienced one of these before. It was astonishing how fast we got from cruise to on the ground with EMTs onboard. Under 15 minutes. These pilots do an amazing job every day.

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Justin K5EM @k5em.com · 03/02/2025

Here in the city it's just the hilltops that are dusted white this morning and the roads are fine. We will see if that changes tonight as it's supposed to get into the upper 20s. Higher up on the east side above 500ft and to the north there's more on the ground.

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Justin K5EM @k5em.com · 27/01/2025

I missed that you had broken the 100 mark previously - congrats!

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Justin K5EM @k5em.com · 26/01/2025

Serious question - is there any reason one would need a flagship GPU to learn CUDA? My 7yo 1080ti runs CUDA just fine. I use it for running accelerated SDR applications like SDR Console (in addition to light gaming) and it works great.

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Justin K5EM @k5em.com · 25/01/2025

I shouldn't say all. Most. There are a few non follows in there but they are buried at least 10:1 in posts from those I follow. Seems like ideally it shouldn't show me any posts I've seen before at all.

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Justin K5EM @k5em.com · 25/01/2025

Does anyone else find the Discover feed totally useless to discover anything? All it shows me are posts I've already read from people I already follow.

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