drmpeg

16 ms·

61.
by drmpeg 2y ago
Same here. The summer I mowed lawns in 1973, I spent all the money on pinball and pizza in Old Orchard Beach, Maine. Some of the older pinball machines were still a nickel.
62.
by drmpeg 2y ago
The output of the dongle in it's normal DVB-T mode is an MPEG-2 Transport Stream. The maximum bitrate of DVB-T is 31.67 Mbps or ~4 Mbytes/s. It's thought that the USB interface was designed to support that rate and not a whol
63.
by drmpeg 2y ago
Maximum sample rate is 3.2 MS/s. https://www.rtl-sdr.com/about-rtl-sdr/
64.
by drmpeg 2y ago
GNU Radio comes with receivers for ATSC and DVB-T. You'll need an SDR that can provide 6 MHz (ATSC) or 8 MHz (DVB-T) of bandwidth (which an RTL-SDR cannot do). DVB-T2 and ATSC 3.0 receivers are too difficult and nothing exists for them
65.
by drmpeg 2y ago
On 8086, the assembler managed the segmentation. All you had to do was load the DS (and possibly ES) register with an assembler defined symbol at the beginning of your function. I never worked with the 80286, I pivoted to the i960 around 19
66.
by drmpeg 2y ago
WW2 BMW motorcycle from the Jacques Littlefield tank collection. https://www.w6rz.net/DCP_1002.JPG https://www.w6rz.net/DCP_1003.JPG
67.
by drmpeg 2y ago
Here's the video. He talks fast, so it's pretty easy to sit through. https://www.youtube.com/watch?v=GjR7sRASjdo
68.
by drmpeg 2y ago
Is the P550 RVA22? Here's the ISA string in Linux. Seems like a lot is missing. rv64imafdch_zicsr_zifencei_zba_zbb_sscofpmf
69.
by drmpeg 2y ago
Yes, it was very disappointing. I was hoping the 8 cores would give a speedup for compiling code, but no dice. On a large Linux build, the BPI-F3 with make -j8 takes exactly the same time as a make -j4 on the VisionFive 2.
70.
by drmpeg 2y ago
The SpacemiT K1 SoC implements RVV1.0. It can be found on the Banana Pi BPI-F3 and the Milk-V Jupiter boards.
71.
by drmpeg 2y ago
The latest Technical Reference Manual for the Eswin EIC7700X is here. https://github.com/eswincomputing/EIC7700X-SoC-Technical-Ref...
72.
by drmpeg 2y ago
For me, it was Christmas Eve 1968 and the reading of Genesis from Apollo 8. My parents had just bought their first color TV.
73.
by drmpeg 2y ago
I wonder why the frequency was redacted in this tweet. https://x.com/nascom1/status/1851789221885022416
74.
by drmpeg 2y ago
Also, the exact uplink and downlink frequencies are not published.
75.
by drmpeg 2y ago
The latest Ubuntu image for the P550 has Firefox installed. https://github.com/sifive/hifive-premier-p550-ubuntu/blob/ma...
76.
by drmpeg 2y ago
Much of the TV spectrum has already been reallocated. Channels 70 to 83 to 1G cellular in 1983. Channels 52 to 69 to 4G cellular in 2008. Channels 38 to 51 to 4G/5G cellular in 2017. The current allocation is channels 2 through 36. Cha
77.
by drmpeg 2y ago
The most current document is here, but it's text. https://www.fcc.gov/sites/default/files/fcctable.pdf
78.
by drmpeg 2y ago
I get similar results here. The Banana Pi BPI-F3 was a big disappointment. I was expecting some improvement over the VisionFive 2, but no dice. A big Linux build at -j8 on the BPI-F3 takes essentially the same time as a -j4 build on the VF2
79.
by drmpeg 2y ago
Hot Chips 2024 talk on AmpereOne. https://www.youtube.com/watch?v=kCXcZf4glcM
80.
by drmpeg 2y ago
My mechanic told me the future of racing is hydrogen. You gotta have noise.
81.
by drmpeg 2y ago
This will also be an LTS (Long-Term Support) release.
82.
by drmpeg 2y ago
I was hoping to see one of the AEM-7 units they bought for testing, but no dice. Did they even do any testing with them? I did see electrics racing diesels during testing.
83.
by drmpeg 2y ago
Here's a paper. https://huskiecommons.lib.niu.edu/cgi/viewcontent.cgi?articl...
84.
by drmpeg 2y ago
There's more than one antenna at each site. https://x.com/CanberraDSN/status/1851446497453494663 https://x.com/vlex26/status/1849618522823065655
85.
by drmpeg 2y ago
> Did they implement something like a new signal analysis method that enabled it? They arrayed three antennas together. > Doesn't that mean X gets more data across at the same redundancy level? There's nothing special about
86.
by drmpeg 2y ago
It's at a lower frequency, 148.5 to 283.5 kHz.
87.
by drmpeg 2y ago
Years ago, there used to be a huge population of raccoons here in Silicon Valley. I used to see raccoons the size of border collies walking down the sidewalk at night. I was starting to expect to see one carrying a briefcase. One night I ca
88.
by drmpeg 2y ago
Swap out all the RF hardware. It's the high level site that matters.
89.
by drmpeg 2y ago
This is a wacky idea, but the "modern" thing to do would be to repurpose seldom used 2-meter repeaters and make them 5G gNBs in the 3300 to 3450 MHz ham band (which overlaps NR band 78). Then you could directly use your cell phone
90.
by drmpeg 2y ago
Here's some SDR generated AM with 15 kHz audio bandwidth. Also shows why SSB isn't used for music broadcast. https://www.w6rz.net/am.mp4

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