drmpeg

12 ms·

121.
by drmpeg 3y ago
Real world performance reported: glibc build on Unmatched ~7:30, on Pioneer ~16:20 hours.
122.
by drmpeg 3y ago
On the RISC-V IRC channel, it was shown that there was some bug with the Milk-V Pioneer processor, which is a C920 core. I'm not sure if the C910 has the same issue. The super slow benchmark was: stress-ng --verbose --metrics --aggress
123.
by drmpeg 3y ago
Enshittification.
124.
by drmpeg 3y ago
I think hot dog jello may be even more hideous. https://www.w6rz.net/hotdogjello.jpg
125.
by drmpeg 3y ago
I've kept my AT&T landline mostly to reduce the amount of spam calls on my cell phone but also to see just how long it would last. It fails every year or two from squirrels sharpening their teeth on the wires. The last time I had i
126.
by drmpeg 3y ago
Okay, but if you still live in Silicon Valley be aware that many of the VHF channels are active (RF channels 3, 4, 5, 6, 7, 12 and 13). 12 is ABC and 13 is NBC. The ATSC 3.0 lighthouse is on 7.
127.
by drmpeg 3y ago
Antennas don't know the difference between analog and digital signals. If it's a large antenna and not in too horrible shape, it will most likely significantly outperform any small antenna from Amazon.
128.
by drmpeg 3y ago
This was in southern Maine, not Connecticut.
129.
by drmpeg 3y ago
I worked at my fathers machine shop (which was a subsidiary of New Britain Machine Company) a couple of summers when I was in high school in the mid 70's. It was quite an experience and the employees were some of the crustiest characte
130.
by drmpeg 3y ago
It's very likely that there's a blob for the SDRAM controller. Something like this: https://github.com/u-boot/u-boot/blob/master/arch/riscv/dts/...
131.
by drmpeg 3y ago
Mountain View has safe parking. https://www.mountainview.gov/our-city/departments/city-manag...
132.
by drmpeg 3y ago
alias h='history' alias pst='ps -ef --sort=start_time' alias rmgit='rm -rf ..?* .[!.]* *'
133.
by drmpeg 3y ago
Meteor radar. https://fireballs.ndc.nasa.gov/cmor-radiants/
134.
by drmpeg 3y ago
For up to the minute information. https://twitter.com/nascom1
135.
by drmpeg 3y ago
Probably the other way around. Erectus was on KOME in the early 80's.
136.
by drmpeg 3y ago
KOME had the "shock jock" Dennis Erectus. I miss him in particular.
137.
by drmpeg 3y ago
Same here in the SF Bay Area. All the awesome FM stations like KFOG, KSJO (The all Led Zeppelin station) and KOME (The wet spot on your dial) are gone.
138.
by drmpeg 3y ago
The exact formula is 4,500,000 / 286 = 15734.265734265... Hz.
139.
by drmpeg 3y ago
Correct. If you look at the block diagram of the AD9084 (from the article link), it has on-chip DUC (Digital Up Converter) and DDC (Digital Down Converter) blocks. https://www.analog.com/en/products/ad9084.html
140.
by drmpeg 3y ago
When I started with VHF and UHF amateur radio back in 1982, it was somewhat difficult to even get on the 1296 MHz band. My friend who was an RF designer used to joke that the L-band power transistors at the time had more reverse gain than f
141.
by drmpeg 3y ago
I couldn't finish Neuromancer. I guess I'm just not a fan of the antihero thing. Toward the end of the book, I just didn't care what happened to him.
142.
by drmpeg 3y ago
I haven't thought about canned brown bread in 42 years since I moved from Maine to California. I'll guess your can was made by B&M Baked Beans. This makes me want to order a can on Amazon along with some Drake's Devil Dog
143.
by drmpeg 3y ago
Yeah, that wasn't a good choice of words. "It won't be allowed even with the new rules." would have been better. But I agree. Even with the 2.8 kHz limit, it's still a big step forward.
144.
by drmpeg 3y ago
The HF ham bands aren't very wide. With the exception of 10 meters, from 50 to 500 kHz wide. Folks (including the ARRL) were afraid of abuse. With an SDR, you can generate a signal with any bandwidth you desire. The reason the FCC didn
145.
by drmpeg 3y ago
4,8,16,32QAM would correspond to 2,3,4,5 bits per symbol. 16 bits per symbol would be 65536QAM.
146.
by drmpeg 3y ago
Taking the 2.8 kHz bandwidth limit into account, around 2000 to 2400 baud depending on the excess bandwidth of the root-raised-cosine filter used to shape the signal. The bandwidth of a single carrier signal is symbol rate * (1 + RRC excess
147.
by drmpeg 3y ago
MIL-STD-188-110D defines a 38,400 baud modem at 48 kHz bandwidth. With 256QAM, the raw data rate is 240 kbps. Of course, the 2.8 kHz bandwidth rule prohibits that in the ham bands. The FCC had originally declined to set a maximum bandwidth
148.
by drmpeg 3y ago
There's always unintended consequences of technology. I worked on early video compression standards starting in 1993, and now we have TikTok. :)
149.
by drmpeg 3y ago
The Boulder ionosonde detected the eclipse quite nicely. https://www.w6rz.net/BC840_foF2-101423.png
150.
by drmpeg 3y ago
A Pactor 4 modem (which at 1800 baud will become legal after this) can do 5512.5 bps in 2.4 kHz with 32QAM. https://www.p4dragon.com/pactor-4.html

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