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We're in a Golden Age for Amateur Radio

ke6mt.us

31–40 of 213 posts

Re: We're in a Golden Age for Amateur Radio

#31

I want to get started with packet radio. I don't know anything about it. Where do I start?

Start with APRS --- a lot of people aren't even aware that there are packet radio networks that exist on VHF outside of 144.390M, but no matter where you are in the US, you probably will be able to get something going on APRS.

There are all sorts of ways that you can go with packet radio. Here are a couple ideas:

1. Start monitoring APRS traffic in your area.

I have a blog post that I wrote about repurposing a $5 scanner from a swapfest with a broken USB headset from a junk drawer, and turning it into a receive-only APRS igate. [1] I run that on a raspberry pi, you can see the current status of it here: [2]

You can do this with an RTLSDR, or a Baofeng into your laptop's microphone, etc. This is the easiest way to just listen and hear for yourself that there is traffic around you, and I think that will motivate you to get further into it.

2. Start putting cool packets onto APRS!

If you have a Baofeng, you can make a cheap TNC out of a USB soundcard, an appropriate break-out cable (available for ~$15 on Amazon), and any computer running soundcard TNC software. I strongly recommend Direwolf if you are playing with a Raspberry Pi (or just a laptop running linux), and APRSDroid if you have an old phone in a drawer. Something to watch out for is the quality of the signal that you put out, you need to tweak the volumes so that things aren't being overdriven. Nobody will hear you otherwise, and you'll be jamming the band for others.

A cool project idea is to put together a Baofeng-powered APRS security system in your car, with the radio stowed in the trunk and tied into the ignition switch. You could track your car at any time! (I started a project like this but never finished it --- the Baofengs use something weird like 7.4V, and my Raspberry Pi was powered at 5V, and I never could think of a proper solution for my ground loops, and how to put it together in a clean package. I have a TH-D72A with a built-in GPS and TNC that I use for APRS in my car on longer trips, for now.)

I bought a cheap weather station, and I was able to get wee_wx to start pulling data from it, and sometime over Christmas I'm hoping that I'll find the time to start putting that data onto APRS. The sky is really the limit, there are dozens of interesting data formats on APRS besides positional data and weather data.

3. Non-APRS packet radio!

This is where the real fun is. Here in Wisconsin I have the following site to see where traffic is [3].

One of the craziest things I've done in Ham radio is hooked my TH-D72A up to my laptop, connected via raw commands to a neighboring station speaking AX.25, left a message on his BBS, and then issued a command which had me hopping from his VHF receive to his HF rig, which forwarded me onto another BBS over HF. The connection was very broken up, but enough came through that I know it happened, and that was enough for it to put a wide smile on my face.

4. If you live in Seattle, check out HamWan.

Hams are allowed to run standard 2.4GHz Wi-Fi equipment at higher power than normal people, provided that we stick to the FCC requirements (station identification in the form of our SSID, no encryption, etc.) I really don't know much about this project, but it's cool stuff. Fun to see what WiFi is theoretically capable of. [4]

[1]: https://nsielicki.blogspot.com/2018/04/repurposing-old-radio...

[2]: https://aprs.fi/info/a/W9NLS-2

[3]: https://www.qsl.net/n9zia/wapr/bandplan.html

[4]: https://hamwan.org/

Re: We're in a Golden Age for Amateur Radio

#32

I guess it might be of as old fashioned, but there's nrarely a "Resource Limit Reached. Error 508" with radio. Shame, I was interested in reading about this.

Well, I once was operating from the Caribbean on 40m and had such a huge number of people calling me, I couldn't make any contacts for many minutes. I guest that would be a 508 error.

Re: We're in a Golden Age for Amateur Radio

#33

I would like to have a go at building a receiver for listening to CW with my kids. I don't want anything on the computer, just something I can solder that will work. Is there a kit that has a good success rate? I'm in the UK if that matters.

Check out the Pixie kits, they're extraordinarily cheap, like $5 on ebay cheap.

https://www.youtube.com/watch?v=TwtErr2E1kQ

Re: We're in a Golden Age for Amateur Radio

#34
post #30

I have a license because my high school teacher made us do it but I never quite understood what hobbyists do with it. I see how it can be a useful skill to have for people in a certain profession but as a hobbyist what do you do? Do people just talk to random people on the radio? I'm genuinely curious.

I got my license (KE0RYU) a few months ago partly out of curiosity and partly because I wanted to mess around with software-defined radio. So far I've volunteered for communications at a major half-marathon and done a little bit of storm spotting for the NWS.

It seems like the majority of serious amatuer radio hobbyists are retired man, many of whom have a background in military communications or electrical engineering.

Re: We're in a Golden Age for Amateur Radio

#35
post #30

I have a license because my high school teacher made us do it but I never quite understood what hobbyists do with it. I see how it can be a useful skill to have for people in a certain profession but as a hobbyist what do you do? Do people just talk to random people on the radio? I'm genuinely curious.

I used to have a CB and it was fun to talk to mates on there and muck around. At the time I liked the idea of HAM radio because you could go longer distance, and the idea of speaking to someone in another country was really cool. However now with the internet etc. it may seem a little less cool. (The internet was around when I was young but was pretty expensive to get connected).

I remember a time when someone on the CB got 64kbps connection to the internet through packet radio, faster than dial up!

It's a bit like how mucking around with microcomputers was very cool back in the day, but now why would you bother when you can run a C64 in an emulator? But there is something nostalgic about it that makes me sometimes want to buy and old computer.

Re: We're in a Golden Age for Amateur Radio

#36
post #30

I have a license because my high school teacher made us do it but I never quite understood what hobbyists do with it. I see how it can be a useful skill to have for people in a certain profession but as a hobbyist what do you do? Do people just talk to random people on the radio? I'm genuinely curious.

You nerd out about radio technology, and you see what you can do with it (bigger ones, smaller ones, distance and quality of transmissions, etc).

It's a feeling of power and independence that is very lost with the Internet to me. With the internet - I'm connecting to something very very large. With ham - I'm building my own. I'd see it as the same draw as setting up your first website in the late 90's/early 2000's, with the visitor counters and comments sections. Each interaction is a treasure.

Re: We're in a Golden Age for Amateur Radio

#37
post #30

I have a license because my high school teacher made us do it but I never quite understood what hobbyists do with it. I see how it can be a useful skill to have for people in a certain profession but as a hobbyist what do you do? Do people just talk to random people on the radio? I'm genuinely curious.

My dad was an amateur radio operator. That's exactly what he did. If you can imagine, back in the 70's and 80's normal people didn't have access to the internet. So all of the discussions that we normally have with strangers (like this one!) were basically impossible, except by radio in publicly accessible bands. I'm not that familiar with the how things worked, but I remember my dad spending at least an hour or two a day, chatting in morse code with people. They even had a kind of news service (I guess a bit like Usenet, except by hand) where they would relay messages around the world. It looked like a cool hobby, but I got access to a computer at a very early age and was instantly obsessed by it ;-)

Re: We're in a Golden Age for Amateur Radio

#38
post #30

I have a license because my high school teacher made us do it but I never quite understood what hobbyists do with it. I see how it can be a useful skill to have for people in a certain profession but as a hobbyist what do you do? Do people just talk to random people on the radio? I'm genuinely curious.

I used mine for telemetry radios on very large model rockets at the rocketry club.

I was "the radio guy". Which was good because my attempt at being the "motor guy" didn't end so well.

Re: We're in a Golden Age for Amateur Radio

#39
post #16
post #4

The title of this piece is "HF Ham Radio on a Budget: QRP Labs, QRPGuys, CW Academy" and probably should at least just be the first part. The article doesn't really talk about being it a golden age for amateurs except for the existence of SOTA. It's actually a pretty bad time for HF right now because of low solar activity; in fact, it's probably one of the worst times in recent memory to try doing HF beyond SOTA.

We're certainly seeing a resurgence of audio content with podcasting. Mostly due to proliferation of mobile and ad spending rotation. But WebSDR is pretty amazing technology. The ability for concurrent users to operate radio via internet could find broad adoption. I'm just not sure what drives it. It might be nice, in an autonomous vehicle future, for example. For idle passengers in neighboring cars to communicate wi…

http://sdr.hu as well for even more locations

Re: We're in a Golden Age for Amateur Radio

#40
I am interested in ham radio, but I’m uncomfortable with broadcasting my call sign around (as required by the FCC) since in the US it’s super easy to get someone’s name and home address from their callsign.

For currently operating hams: do you just deal with it, or is there something you can do to protect your privacy?

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