mrtnmcc

6 ms·

31.
by mrtnmcc 6mo ago
That post is truly hilarious though. If everyone talked like that on the nets, the hobby would surely grow a lot faster.
32.
by mrtnmcc 6mo ago
Repo has been there, but I pushed an update for the latest demos, thanks for the reminder :) You have to understand this is a relatively sleepy personal project at this point still.
33.
by mrtnmcc 6mo ago
You can find all the software there (for every demo shown on the website), but it's not "build-ready" given the hardware isn't released yet as the website makes clear. The repo is from last year but not generally adverti
34.
by mrtnmcc 6mo ago
phased array is better than whatever that guy was doing! MoonRF mostly takes care of the hardware and pointing, and then the fun is playing with software and signal processing: https://github.com/open-space-sdr/main
35.
by mrtnmcc 6mo ago
It's open source. Here is the GitHub: https://github.com/open-space-sdr/main
36.
by mrtnmcc 6mo ago
The 1 GB RPi-5 is only $45 still, hopefully it stays that way :)
37.
by mrtnmcc 6mo ago
correct, one Pi-5 for the MoonRF. The beamforming computation is done digitally "on the fly" in round-robin across the sixty QuadRF boards.
38.
by mrtnmcc 6mo ago
unfortunately the ECP5-5G FPGA (with the SERDES/PCIe option), costs way more than the ECP5 (without SERDES). The Pi-5's MIPI interfaces gives you 8 parallel LVDS lanes that can run at 640 MHz each which is manageable for a cheap F
39.
by mrtnmcc 6mo ago
the licensing of the software/firmware/hardware is shown at https://moonrf.com/updates/#faq
40.
by mrtnmcc 6mo ago
the open-source licenses are listed at https://moonrf.com/updates/#faq
41.
by mrtnmcc 6mo ago
The MoonRF array is a full 1 meter diameter as shown on the page
42.
by mrtnmcc 11mo ago
The individual Falcon turn-around is slow (months of refurb), and the record half-month ones swapped some engines. B1067's 30-reuse is a ship of Theseus rebuilt over 4+ years.
43.
by mrtnmcc 11mo ago
And don't forget New Glenn uses Methane which solves the coking problem for reusability. Coke buildup plagues Falcon more than people realize.
44.
by mrtnmcc 11mo ago
>> I have several hundred [four leaf clovers]. I even have a few five-leaf clovers and a couple of sixers! That doesn't fit the ratios in my experience.. I find about 1 five-leaf for every 5 four-leafers. They should have nearly
45.
by mrtnmcc 11mo ago
There are ten 640 MSPS ADCs (I+Q per channel and a cal path, per 4-antenna PCB tile). These are custom MASH ΣΔ designs built from discrete diff pair transistors (cost about $0.08 each) and do noise shaping/decimation to get a clean 50
46.
by mrtnmcc 11mo ago
Great seeing you at Pacificon! We’re starting with the “Quad” tile — a 4 Tx × 4 Rx SDR designed for arraying — and expect to ship the first units toward the end of this year. They're actually quite capable as a standalone SDR. A Quad
47.
by mrtnmcc 3y ago
Maybe in a controlled setting they can detect mines, but there are plenty of other reasons for dry soil, i.e. hard to detect consistently without false positives. For tank camouflage that's all you need, something that blends in with f
48.
by mrtnmcc 3y ago
> Thats insane... To consistently not close the door like that It sounds like it happened occasionally causing the battery to drain overnight. So not necessarily improper close every time, but a dice roll.
49.
by mrtnmcc 3y ago
Might as well just put a bunch of dirt on the tank.
50.
by mrtnmcc 4y ago
Perhaps if you feed ChatGPT the article, it will discern some meaning that currently only the author possesses.
51.
by mrtnmcc 4y ago
SMS was more reliable for delivery with poor cellular connections, and many people learned to use it for that reason. The US (had) many rural areas with poor reception. So maybe that plays into it? That theory would seem disproved by Mexico
52.
by mrtnmcc 4y ago
Could also do multiple parallel e-beams to a chip (within reason). This might amortize some of the cost.
53.
by mrtnmcc 4y ago
Giving LLM the ability to query other services like Google should solve much of this. For example ChatGPT can be initialized to be told it can output commands like "QUERY_GOOGLE:What is the current time?" and get Google's res
54.
by mrtnmcc 4y ago
American Individualism is a well studied value w.r.t Europeans, https://www.pewresearch.org/global/2011/11/17/the-american-w... Of course generalizing like this about groups is a cloudy lens at best but
55.
by mrtnmcc 4y ago
It's ironic to criticize the way the Chinese handled terrorism concerns against Muslim Uyghurs in Xinjiang, when the US War on Terror didn't just dehumanize and supress American Muslims-- it killed about 1 million people across th
56.
by mrtnmcc 4y ago
Agreed there is nuance, but the Han dynasty had similar borders 2000 years ago. The Great Wall helped, it wasn't the easiest thing to move around.
57.
by mrtnmcc 4y ago
Um... Ghenghis Khan was Mongolian. Mongolians are not in any way at all related to the Chinese people/Han people.
58.
by mrtnmcc 4y ago
The Europeans are not obsessed with taking down China, nor are Europeans ardent individualists as Americans are. Chinese and America have a bigger cultural gap than Europe and China in this respect.
59.
by mrtnmcc 4y ago
China is about 10x older than the US. We're like a six year old thinking they knowing better than grandpa.
60.
by mrtnmcc 4y ago
Arguably a more Chinese-style philosophy is prudent now as the world becomes a smaller place. Chinese people have sustained for thousands of years on the same land, without needing to rely on continuously invading new territory. Now the who

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