Hacker News: colsandurz

New comment by colsandurz in "The weekend is 100 years old"

colsandurz — Sun, 16 Aug 2026 20:35:19 +0000

Can I have a 4 day work week?

New comment by colsandurz in "Software-Defined Radio for Engineers (2018) [pdf]"

colsandurz — Wed, 12 Mar 2025 01:10:45 +0000

This comment is over-the-top mean and unfair.

Alex was my advisor in grad school and I only know him to be honest, hard working and technically sound. I haven’t read this book closely but I’m not convinced that it’s poorly written based on cherry picking one paragraph from it.

New comment by colsandurz in "Russians are trying to flee – data from Google Trends"

colsandurz — Sun, 06 Mar 2022 23:41:57 +0000

What’s the difference between this and Google Flu trends?

New comment by colsandurz in "The 'Great Resignation' is really the 'Great Discontent'"

colsandurz — Wed, 11 Aug 2021 23:59:58 +0000

I work at a place with a flat structure and I can’t emphasize enough how true this is.

It’s especially noticeable when you’re not one of the in-crowd.

New comment by colsandurz in "Texans can carry handguns without a license or training starting Sept. 1"

colsandurz — Sun, 18 Jul 2021 22:51:11 +0000

What’s wrong with giving people options?

New comment by colsandurz in "Alabama Sheriff Legally Took $750k Meant to Feed Inmates, Bought Beach House (2018)"

colsandurz — Thu, 01 Jul 2021 20:39:25 +0000

What do we have Sheriffs? What do they do that local and state law enforcement don't do?

New comment by colsandurz in "Challenges in the diagnosis of magnesium status"

colsandurz — Sun, 27 Jun 2021 21:04:01 +0000

Not sure what he’s doing but this should help:

http://fellrnr.com/wiki/Magnesium

New comment by colsandurz in "Parler Users Breached Deep Inside U.S. Capitol Building, GPS Data Shows"

colsandurz — Wed, 13 Jan 2021 01:25:36 +0000

Not really. To geolocate a user the cell providers would need to know the absolute position of all the LTE repeaters and cells (which they might). But they'd also need to compensate for indoor propagation (which is much more complex than outdoor).

Also AGPS only provides satellite ephemeris, which enables a faster time to fix, not better accuracy.

New comment by colsandurz in "Parler Users Breached Deep Inside U.S. Capitol Building, GPS Data Shows"

colsandurz — Wed, 13 Jan 2021 01:21:25 +0000

A GPS repeater would only give accurate time, not position. The repeater only repeats the signal that's captured by the antenna on the roof. I use GPS repeaters frequently in my labs to supply timing to instruments.

New comment by colsandurz in "Meals based on vegetable protein sources (beans and peas) are more satiating (2016)"

colsandurz — Sat, 02 Jan 2021 18:37:04 +0000

Can anyone link to some recipes that feature plant based protein? Here's a few my wife and I really like:

https://food52.com/recipes/30932-heidi-swanson-s-pan-fried-g...

https://www.rickbayless.com/recipe/cowboy-beans/

https://www.ranchogordo.com/blogs/recipes/spicy-baked-royal-...

New comment by colsandurz in "Show HN: Automated Health Dashboard"

colsandurz — Thu, 03 Sep 2020 18:05:06 +0000

Does this work with Apple Health?? Is there an easy way to get data out of Apple Health?

New comment by colsandurz in "NSA Exposes Tool Used by Russian Hackers"

colsandurz — Wed, 03 Jun 2020 00:44:59 +0000

So the NSA is doing what they actually should be doing?

New comment by colsandurz in "Launch HN: Probably Genetic (YC W19): At-home DNA testing for every gene"

colsandurz — Fri, 28 Feb 2020 02:43:11 +0000

Would you ever be able to test two potential parents to see if they're both carriers for genetic diseases? Or, is that a completely different type of test?

New comment by colsandurz in "Expert Says Indians Will Soon Be Water Refugees Heading for Water-Rich Europe"

colsandurz — Thu, 19 Sep 2019 13:48:50 +0000

And the square foot below me has 575x the density of Monaco and there are no problems here!

New comment by colsandurz in "Engineers create synthetic, sound-silencing structure that blocks 94% of sounds"

colsandurz — Sun, 07 Jul 2019 21:16:26 +0000

94% loss is only 12.2 dB (10 * log10(1-0.94) == 12.2)... not that much.

Also, where's the STL if I want to try this myself??

New comment by colsandurz in "Reasons to turn down the transmit power of your Wi-Fi (2017)"

colsandurz — Wed, 10 Apr 2019 14:45:24 +0000

Not only that but APs usually have more antennas, which makes a huge difference. The antennas can also be spaced out more (for better diversity) and be physically larger (typically you get more gain the closer your antenna length is to the wavelength of the signal).

You can also have better analog RF components with more space (filters, LNAs, PAs, etc).

It's not necessarily true that the "advantage" of the AP is symmetric as well. The tx power is limited by FCC part 15 so the difference in tx power between AP and client is probably less than the difference in Rx sensitivity between the AP and client.

Even if the uplink and dowlink are symmetric, the traffic profiles are probably not - there's probably a lot more data going to the client.

New comment by colsandurz in "Ask HN: Did you delete your Facebook account in 2018?"

colsandurz — Sun, 23 Dec 2018 23:00:23 +0000

Me too. Haven't missed it either.

New comment by colsandurz in "European Parliament requests recommendation to end biannual clock change"

colsandurz — Thu, 08 Feb 2018 16:55:41 +0000

So what's semiennial mean?

New comment by colsandurz in "Ask HN: Who's mentoring?"

colsandurz — Sat, 02 Sep 2017 00:11:22 +0000

Software Defined Radio | Boston | Devin | dwwkelly at fastmail.fm

I program radios professionally and I've taught several short courses on SDR. If there's anyone in my area who's interested let me know.

New comment by colsandurz in "Amy Goodman Is Facing Prison for Reporting on the Dakota Access Pipeline"

colsandurz — Sun, 16 Oct 2016 18:05:10 +0000

What can I do about this?