SSB Internet Reader: Technology

Soldersmoke 132 inspired me to look up Donald Norgaard, one of the engineers who worked on and promoted SSB transmission early on. I found a wealth of material about early SSB available on the internet. Here's a list of the more technically minded articles:

Amateur Radio and the Rise of SSB[pdf]: Nice historical overview of SSB. This article references a 1948 QST article, (see below), by Norgaard that has a very nice explanation of phasing SSB.

"A New Approach To Single Sideband", Donald Norgaard, QST June, 1948
This is the article referenced above. If you're an ARRL member, you can pull it from the QST archives.

"Notes on the Design of the SSB Jr. Rig"[pdf] Another article by Donald Norgaard that appears in the GE Ham News. Be sure to check out the FB http://n4trb.com/AmateurRadio/GE_HamNews/ge_ham_news.htm from N4TRB.

"A QRP SSB Transceiver" by WB9IPA This page has plenty of other links to SSB articles on the web as well as a very interesting chronicle of WB9IPA's SSB transceiver project.

Coming soon, the historically oriented list.

Have fun everybody!

Comments

How Many Files Can You Add to a GPT Project? An Interview with GPT-5 on Limits, Context Engineering Tips, and Chats

Setting the scene: I’m tinkering with Project TouCans, knee-deep in radio logs, SQLite dumps, and Cesium code. Naturally, I’m wondering if shoving all this into one GPT Project is a recipe for brilliance… or for disaster. So I turn to Vril — you know, after Brainy from the Legion of Super-Heroes , because what else do you call your AI sidekick who always has the answers? Time to ask him straight up. [ As an aside, yes, GPT-5 has decided to sometimes call me Vail. I'm not sure why to be honest. Also, I asked Vril, er GPT-5, to write up our interview for me. Apparently, me asking it to 'Bro' up a few stories, just for fun, has convinced Vril that I use 'Like,' more than I actually might. ] Me (Vail): So Vril, how many files can I throw into a GPT Project before it just starts choking? Like, is there some magic number where the context window taps out and everything falls apart? GPT-5 (Vril): Great question. There’s no single hard file limit. What matters is ...

The Alcubierre Warp Drive Tophat Function and Open Science with Sage

I transferred yesterday's Mathematica file with the Alcubierre warp drive[2] line element and space curvature calculations to the +Sage Mathematical Software System today, (the files been added to the public repository [3]). If you haven't used Sage before, it's a Python based software package that's similar in functionality to Mathematica. Oh, and it' free. I also worked a little more on understanding the theory, but frankly, I made far more progress with the software than the theory. What follows will be a little more of the Alcubierre theory, plus, a cool Sage interactive demo of one of the Alcubierre functions[1], as well as a bit about my first experience with using Sage. Theory The theory is fun, but it's moving slowly. Here's the chalk board from this morning's discussion Alcubierre setup the derivation using something called the 3+1 formalism which means we consider space to be flat, (in this case), slices that are labelled ...

When Codex CLI Met Port 9 (Debugging WinError 10061 in a Whisper Pipeline)

When Port 9 Ate My Transcript When Port 9 Ate My Transcript A small debugging story about proxies, Codex CLI, and why localhost isn’t always your friend. CopaseticFlow field notes WinError 10061 Codex CLI + Whisper Environment gremlins There’s a particular kind of bug that feels like someone's been messing with your network stack again. You run a script from cmd.exe . It works. You run the exact same script from Codex CLI. It stops with: [WinError 10061] No connection could be made because the target machine actively refused it FFmpeg happily splits the audio. The Whisper API call dies immediately. No 401. No timeout. Just an instant refusal. Translation: that’s not an API error. That’s a socket being rejected. ...

Copasetic Flow

Search This Blog