Every now and then I’ll come across a comment to the effect of “FT8 isn’t REAL ham radio”. That got me thinking what exactly IS “real” ham radio. After mulling it over I’ve come up with a way to quantify whether a given communication counts as “real” ham radio.

To get the percentage of “real” ham radio-ness of a given act of communication, simply use the formula H=100*R/T, where H is the percent ham-radio-ness, R is the total distance traveled over radio frequencies in the ham bands, and T is the total distance.

So let’s say Alice has an FT8 QSO with Bob, and they live 1500 miles apart. Both are using FT8 software on PCs connected to their respective radios. In this case the distance traversed by RF is 1500 miles and the total distance is also 1500 miles. Divide the two numbers andjmultiply by 100 to get 100%. So Alice’s QSO with Bob is 100% “real” ham radio.

Now let’s change the scenario. Alice and Bob are still 1500 miles apart, but they’re talking over a DMR talkgroup via linked repeaters. Alice is 5 miles away from her local machine, and Bob is 10 miles away from his. The two repeaters are 1485 miles apart, and for the sake of simplicity we’ll say that all four points form a line.

So that’s 5 RF miles from Alice’s HT to her repeater, plus 10 RF miles from Bob’s HT to his repeater, for a total of 15 “real ham radio” miles. The other 1485 miles “don’t count” since they’re over the internet. This means their DMR QSO is 1% “real” ham radio.

I hope this clears things up :P

  • Onno (VK6FLAB)@lemmy.radio
    1·
    7 hours ago

    This is what I wrote about this on 2018-01-07:

    What is amateur radio? What’s not part of the hobby and what is?

    The more you dig into this, the deeper the rabbit hole goes. I’ll start with an analogy to set the scene.

    In aviation, Sir George Cayley was the first person to investigate heavier-than-air flying vehicles. He invented the aeroplane in 1799. The first full-sized glider, built in 1849 carried the first person in history to fly, the ten-year-old son of one of his servants. Since then the Wright brothers made their flight at Kitty Hawk. We saw the invention of commercial aviation, the turbo prop, the jet engine, the space-shuttle, helicopters, drones, rockets, hot-air balloons, the Hindenburg, the Goodyear blimps, hang-gliders, gyro-copters and many, many other contraptions.

    Each of those are considered aviation and the person controlling the device is considered a pilot.

    In amateur radio we talk on the radio.

    We also create repeaters and talk on them. We link them together using what ever technology is available. We make it possible to connect to such networks using software such as Echolink, AllStar Link, IRLP and other internet based systems. We create digital networks with DMR, use WSPR to exchange information, make contacts using CODEC2, have contests using CW and Morse code.

    We build software defined radios where we use computers to decode and encode radio signals, test back scatter using all manner of signal processing, use packet radio, RTTY, Hellschreiber and bounce signals off the moon and nearby meteors or an overflying aircraft.

    We make auto-tuners with a Raspberry-Pi or an SWR meter with an Ardiuno. We build valve based amplifiers and program mp3 voice-keyers, GPS lock radios, map propagation using the internet and have a rag chew on the local 2m repeater.

    We investigate 13cm propagation, do experiments with amateur television and we set up radio stations on top of mountains, in light houses and on remote islands.

    All of this is amateur radio, and frankly I’ve only just scratched the surface.

    There are heated discussions about if a linked repeater using the internet to create the link is real amateur radio or not, whether using your mobile phone as a node on the Echolink network is real amateur radio or not, if using a computer to create contacts on a digital mode such as JT65 is real radio or not.

    Each of these questions highlights a misconception about our hobby.

    There are no boundaries in amateur radio. We’re a bunch of inventors, mavericks, people who attempt the unthinkable, try the impossible and make progress.

    There are people who are passengers on planes, and there are people who fly them. There are people using technology and there are people who invent it. We have a unique perspective as a community. We have the ability to imagine something that doesn’t yet exist. Why would you spend any energy on whether that thing is real amateur radio or not?

    Amateur radio is a myriad of things, some of them related to antennas and radio spectrum, some not. This hobby is what you make of it, so go forth and invent something, try something, get on air and make some noise!

    I’m Onno VK6FLAB

    Source: https://podcasts.itmaze.com.au/foundations/20180107.foundations-of-amateur-radio.txt