RF_Savage

7 ms·

31.
by RF_Savage 2y ago
Enforcement action is likely driven by complaints from other users. Both FM broadcast and telcos pay for their exclusive slices, so enforcement happens quicker.
32.
by RF_Savage 2y ago
And 100% incompatible with all existing installations. I also doubt Amazon will be happy about their Sidewalk mesh network getting degraded.
33.
by RF_Savage 2y ago
23cm is under fire in Europe to protect GNSS services from potential interference. Allowing unlicenced operation there is very unlikely to ever happen.
34.
by RF_Savage 2y ago
That it only supports rtl-sdr sticks, not HackRF. So the HackRF will not work.
35.
by RF_Savage 2y ago
Casette bearings are also non-tape casettes.
36.
by RF_Savage 2y ago
Yet to meet anyone who could have bought a full fat commercial Autocad or Solidworks license as a 13yo kid. Even more so 20 years ago.
37.
by RF_Savage 2y ago
Now that's something to try. Kitchen scale electroplating. But nickel acetate sounds bioavailable.
38.
by RF_Savage 2y ago
Most current day cellphone antennas don't have phasing for any tuned directionality. There are hard limits to array size due to physics and phones are just very small compared to yhe wavelengths they use. And then there is the genera
39.
by RF_Savage 2y ago
Outside of QFN, DFN and BGA, I do most of my smd soldering by hand, no reflow (toaster) oven required. Just an iron with a suitable tip is what I have required so far.
40.
by RF_Savage 2y ago
The "9DoF" in IMU datasheets is a marketing term, they just add up all the sensor dimensions they have. Some IMU modules talk about "10DoF" , because they have added a barometer to it. So even a good "9DoF" IMU
41.
by RF_Savage 2y ago
HadesVR is the 6DoF capable low cost open source VR headset project with an active community. https://github.com/HadesVR/HadesVR It is derived from Relativty and the communities overlap.
42.
by RF_Savage 2y ago
The magnetron needs about -4.4kV to work and food does not care about the purity of the signal, only net energy delivered. So the transformer based microwave oven power supplies have a 2.2kV transformer and then double that to 4.4kV for the
43.
by RF_Savage 2y ago
So Intel has abandoned the sub-100usd segment to AMD/Xilinx, Lattice, Efinix and Microchip?
44.
by RF_Savage 2y ago
This is also why FAA now offers private ICAO numbers for ADS-B use. https://www.faa.gov/air_traffic/technology/equipadsb/privacy
45.
by RF_Savage 2y ago
That 4x the price does also explain why it has not happened.
46.
by RF_Savage 2y ago
I doubt they will manage to do a significant nuclear buildout in mere five years. But future renevables will potentially benefit from the stronger grid.
47.
by RF_Savage 2y ago
Ain't that a direct result of them not investing in their infra for decades and all that technical debt catching up to them?
48.
by RF_Savage 2y ago
1990's PC's have Varta bios batteries soldered on that leak and destroy the motherboard. Or they have Dallas real time clocks with dead batteries.
49.
by RF_Savage 2y ago
The CD/DVD discs used can also be retained and later audited to verify what was moved to and from the systems.
50.
by RF_Savage 2y ago
Repair and reuse would have kept the 30% appstore cut rolling in. But that's about to change in Europe and USA due to recent rulings.
51.
by RF_Savage 2y ago
The problem with second hand HF rigs is the uncertainty of supply and not knowing what rig is good and what is not. And even a cheap used rig can be 10 - 30 times the cost of an entry level handheld radio. And then you buy a power supply
52.
by RF_Savage 2y ago
I thought the Ku-band user access frequencies used by Starlink was 12GHz down and 14.5GHz up? As those are the easy to license frequencies globally. Not to mention, 17GHz is far away from 12GHz and 14.5GHz, so the antenna complexity als
53.
by RF_Savage 2y ago
No it is not. Ozone is not good for breathing.
54.
by RF_Savage 2y ago
At one point in time some TCL TV's were sold below or at the cost of manufacture. All the profit came from advertising and selling user behavioral data.
55.
by RF_Savage 2y ago
At $342 I'd rather buy the production line JBC from Weidinger and spend the difference on tips or another handle.
56.
by RF_Savage 2y ago
It does not exist outside of diy enthusiasts in the west as a used electric car will have more range and be cheaper. So currently it's an enthusiast thing.
57.
by RF_Savage 2y ago
Here's one with 533MHz ARM926EJ core, 32 megs of RAM and 8 megs of Flash. No emulation here. https://www.thirtythreeforty.net/posts/2019/12/my-business-c...
58.
by RF_Savage 2y ago
It does sometimes feel stupid for the bus to idle at the stop for 1-5 minutes, but on the flipside they are in time on the dot at the stop.
59.
by RF_Savage 2y ago
Something like that would be awesome. I suspect that it won't happen until someone makes a DECT NR+ moduke with eady to use API exposed by it's firmware. So, something with Nordic in it.
60.
by RF_Savage 2y ago
Less about PNT, more about using it for LTE or 5G, as 15MHz is a standard bandwidth used there.

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