In a thread from Wyoming Survival, he posted about trying to learn Morse code. I replied that if you’re not there, for whatever reason, to receive a Morse or SSB call over the radio when it comes in, it’s the same as if it had never been sent.
A clever operator chimed in to say, “Morse code is often recorded
and digitized in real-life SIGINT operations.
IYKYK.”
At first glance, that sounds impressive. But it applies to a completely different workflow.
Even in a SIGINT scenario using SDRs to capture massive portions of spectrum, what you’re doing is recording audio over RF, not receiving a message. The message does not exist to you until it has been processed and decoded. That takes time, power, storage, and intent. It is analysis, not communication.
Historically, large militaries used teams of analysts to comb through recorded signals. Today, AI helps sort, tag, and search that data. Useful for intelligence work, absolutely. Useful when someone needs help right now in a grid-down disaster, not at all. By the time that data is processed, the moment has already passed.
This is the key distinction. Communication requires delivery. Recording is not delivery. A message sitting in a file waiting to be decoded later has not reached its intended recipient when it matters.
My original point was not anti-Morse. It was about the limitations of real-time analog modes like Morse, SSB, RTTY, or PSK31. They all share the same requirement: both operators must be present, on frequency, and listening at the same time. No storage. No buffering. No retry. If that moment is missed, the message is gone.
The SIGINT example is not a feature of Morse code. It is a feature of external systems, wideband SDR recording, computing infrastructure, and post-processing workflows. In a real grid-down scenario, it may not be practical to deploy such complex tools. We have a radio, limited power, and limited time. Nevermind potentially being on the move.
This is where asynchronous data modes change the equation. Systems like JS8Call or Winlink allow messages to be stored and delivered when the receiving station becomes available. You do not need both operators present at the same time. The system handles timing, retries, and delivery.
The SIGINT argument sounds sophisticated, but it solves a different problem. It is designed for intelligence collection, not for reliable communication between real people under real constraints.
**********************
There is a pattern in the ham radio and preparedness spaces. Short, flashy posts with buzzwords and “secret knowledge” spread fast. Real-world experience, testing, and systems thinking do not. The algorithm rewards noise, not depth.
That creates a disconnect. Some people end up repeating clever-sounding ideas without understanding the context they came from. Meanwhile, the fundamentals never change: if the recipient is not there, the message does not land.
The people who actually test this in the field are usually quiet. They are not chasing engagement. They are building stations, managing power, and validating what works under real-world constraints. Those are the people this is written for.
Spend less time chasing buzzwords and more time testing your setup. The difference shows up when it matters.
My point still stands. If you’re not there to receive an analog message in real time, then for practical communication purposes, it was never received.
This was covered in great detail in Grid-Down Emergency Communications.
- US (Kindle / Amazon.com):
https://www.amazon.com/dp/B0G4JY2RLJ - Germany (Paperback / Amazon.de):
https://www.amazon.de/dp/9526564502
Also give @wyomingsurvival a follow on X or Instagram.
73
Julian OH8STN
Join the discussion