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.
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.
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 precaution and had the training to deal with whatever might come up.
The majority of births are simple if you let them be and the midwives go to great lengths to make sure the conditions are right for a successful event. In the case of our third we hit some conditions leading up to the delivery date that disqualified us for a home birth so we seamlessly transitioned into the hospital system (where the midwife still delivered the baby)
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!
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 several miles of walking. I've been on tours of other Civil War sites and that was by far the best.
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 tap things out without even moving, but maybe the key works for you.
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 ones they're missing. Other people will gather a group and raise funds to go to those places so that they get on the air.
Contesting is when there's an event, usually over a weekend with a set of rules and a point system for contacts. People get on the air and try and get the most points by making contacts. Big contests might have 10 or 20 thousand people all over the world participating and top competitors are running 2 or 3 radios simultaneously to get rates of over 400 contacts an hour. But there's also smaller contests such as QSO parties where a State tries to get people from every county on the air and people from across the country try to work them. Or silly ones like the Zombie Shuffle at the end of this month where people make up funny names and exchange them at low power, low speed Morse code just for fun. https://www.contestcalendar.com/ shows all the contests and gives you some idea of the variety.
Since some of the less popular countries tend to get active during the big contests, many DX'ers will enter contests just to find a few more.
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 bands. There's people making relatively small, hydrogen filled balloons and trying to see how long they will stay alive. They're using WSPR on 20M to broadcast their telemetry (search for Traquito).
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. It's a bit of a thrill to work through a bunch of callers or to snag a rare multiplier.
I should also mention Parks on the Air. I like going to parks and within a few minutes have people calling me. Or to hunt for other people in parks. Almost like a contest and DXpedition rolled into one.
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 go double check against sites like solarham.com or NOAA directly just to make sure (especially WRT R/S/G forecasts). Their spotting information is also super laggy, so you don't find out about how you're being spotted for around 5 minutes.
However, it is very nice looking and when I did have it up I did pay more attention to things like solar weather.
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 contesting.
You can be as connected to the past as you want in this hobby. It's at the point where we have people getting remote islands on the air by driving a boat onto shore that has a radio and an amplifier, raising an antenna, and then people can operate from either a boat anchored off shore or back home over Starlink. And they're doing it in Morse code, so you have this nice blend of the old and the new.
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 amateur radio is in the open. So if you want to talk to your European friend, only the Sun can prevent you, but anyone can listen.
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 contacts in about an hour on one band since there are so many hunters.
Clubs like Long Island CW have thousands of members and run classes all day to teach people Morse and help with their operating skills. Just this morning I joined the weekly CWOps mini contest which is so popular they have it in 4 x 1 hour sessions. And that's on top of the 3 medium speed sessions on Mondays, and 2 slow speed ones.
There might not be as much ragchew activity but between contests, DXers, and POTA, there's CW activity all over the bands.