swalberg

5 ms·

1.
by swalberg 6d ago
https://www.youtube.com/watch?v=ICDRBVaH6Rc is an earworm of a song exactly about this.
2.
by swalberg 2mo ago
Would something like this work at much lower frequencies? Being able to see RF at 3-30MHz would be fantastic for hunting RFI in the amateur radio HF bands.
3.
by swalberg 3mo ago
This reminds me of https://www.cs.cmu.edu/~rdriley/487/papers/Thompson_1984_Ref...
4.
by swalberg 3mo ago
Neil Gunther extends Amdahl's law to the Universal Scalability Law in https://www.perfdynamics.com/Manifesto/USLscalability.pdf (pdf). He uses it to help model a system's scalibility.
5.
by swalberg 5mo ago
GUE Fundies is on my bucket list. I don't think I'd be interested in cave diving or deep stuff where I need helium, but the level of skill that tech divers show is something I want to be able to do.
6.
by swalberg 10mo ago
Father of 3 here, first two were home births, the third had complications and ended up being a hospital birth. I was initially skeptical for the same reasons but the first meeting with the midwife convinced me that they were taking every pr
7.
ARRL Frequency Measurement Test (Thursday)(fmt.arrl.org)
1 points by swalberg 11mo ago|0 comments
8.
by swalberg 11mo ago
Was just talking about frequency references last night -- the ARRL Frequency Measurement Test is this Thursday evening https://fmt.arrl.org/
9.
by swalberg 1y ago
The meteors leave a tail of ionized particles that people on the ground can bounce RF off of. Ham radio operators use this, e.g. the MSK-144 mode. Pretty cool to hear/see signals and know they were bounced off the tail of a meteor!
10.
by swalberg 1y ago
My first celebrity crush as a kid. She's also in _Revenge of the Nerds_. Those two movies made young-me think that being a geek could be cool.
11.
by swalberg 2y ago
The NFL passes net income back to the team owners. The taxation is generally the owner's problem.
12.
by swalberg 2y ago
I didn't realize they licensed private tour guides. My son's scout troop went to Gettysburg and joined one of the NPS tours. The guy kept a whole lot of teenaged boys engaged and interested for what was at least 2 hours and severa
13.
by swalberg 2y ago
I don't know any part numbers but have a look at what the Morserino does ( https://www.morserino.info/ ) or this reddit post: https://www.reddit.com/r/amateurradio/comments/ag7xpi/proj
14.
by swalberg 2y ago
How are the ergonomics of that key? Between the switch with the spring and having to hold that in your hand to use, I'm wondering how accurate the keying is? One suggestion might be a flat pad with a capacitive switch so you could just
15.
by swalberg 2y ago
Sorry... DX is short for a distance contact, so someone outside of your country. There are 340-odd "DX entities" defined, some of them incredibly rare (Bouvet Island, North Korea), and people spend their lives trying to get the on
16.
by swalberg 2y ago
Hams have privileges on 2200m, too! At those wavelengths people are using big loading coils. Saw a video last week of a guy in Alaska with a sizeable loop in the trees and was putting in about 1 KW to get 1W EIRP. WSPR is all over the ham b
17.
by swalberg 2y ago
DX'ing and contesting. I enjoy making quick contacts with people all over the globe, and sometimes having to go to a map to find out where they are. Contesting is also fun. There are a variety of modes. I got into RTTY contests lately.
18.
by swalberg 2y ago
It is cool and still gets updates. One thing to note is that almost all the information comes via a ClearSky API, so I'd often find that the data didn't line up to more official sources. Not egregiously so, but sometimes I'd
19.
by swalberg 2y ago
Morse code is flourishing even without it being a requirement. People are discovering what a fun mode it is -- the low power portable people love the reach you can get on 5W, others enjoy the mental challenge, and it's prevalent in con
20.
by swalberg 2y ago
What I like about the hobby is that it can be a lot of things to a lot of different people. So the emcomm/prepper crowd is very interested in practicing communications for when existing networks go down. That said, everything you do in
21.
by swalberg 2y ago
If you find the park reference you can submit logs to pota.app after the fact. Any qso counts.
22.
by swalberg 2y ago
It's getting more and more popular within amateur radio. If I look on the Parks On The Air spots page, there are currently 20 people in a park across the US doing Morse, and I know that when I go to a park I can knock out 60 Morse cont
23.
by swalberg 2y ago
+1 to this. I started learning Morse with that same Google site and it's optimizing for reading, not hearing. Took me time to unlearn everything and do it properly.
24.
by swalberg 2y ago
I have one that I attached to an old antenna rotator so I can control it from the network. And another that monitors Github's status API and lights an LED when they're down. Got a nice pair of Github socks at re:invent for showing
25.
by swalberg 2y ago
It's a short form of "best regards". In message handling there was a table of numbers that could stand in for phrases to save time. That one made it to common ham lingo.
26.
IBM Nears Deal for HashiCorp(wsj.com)
14 points by swalberg 2y ago|1 comments
27.
by swalberg 2y ago
I just got my green card after 9 years of living on a TN. I've got a family -- my kids have spent about half their lives in this country. Even though I was in legally and knew eventually things would work out, there's not one week
28.
by swalberg 2y ago
Does that apply broadly to PhDs or just tech related ones? I'm thinking specifically about a PhD in Political Science, dealing in tech adjacent national security topics.
29.
by swalberg 2y ago
My PERM was certified in August. Took a little over 16 months because it went to audit. Timelines on PERM shot up around the same time as I applied and have been steadily getting worse. Filed I-485 in November, approved in 4 months and a we
30.
by swalberg 3y ago
Yes, you'll want to google for the "Visa Bulletin" to see the current dates for different countries. India and China are currently backlogged.

More ›