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He offered these slides from a different, longer talk about SDR, etc.:
https://www.mtl.mit.edu/sites/default/files/media/documents/2024/ulrich-l-rohde-sdr-talk_2019.pdf
To learn about radio, he recommended ham radio magazines. (He requires people reporting to him to have a ham license.) I found these slides (via the ARRL web site), which start with pictures of his home and ‘mobile marine’ shacks:
I know we had a tech night presentation about open-source ham software a while back (https://www.n1fd.org/forums/topic/reminder-next-club-meeting/#post-2448) but I’m asking a wider question here.
Thanks!
I’ve also seen a reference to a kit from transverters-store but they are shut down right now due to the war in Ukraine.
My hypothesis/em> is that you count down the list in alphabetical order within the state, starting with 1. The sorted (within each state) list is here: https://neqp.org/neqp-county-abbreviations/
So BELNH is 1, HILNH is 6, BARMA is 1, MIDMA is 9, etc.
Append to that number ‘A’ so it looks like a Field Day class, space, and the ARRL section code.
But I’d rather not start using it until I know for sure.
Thoughts?Also watching. I don’t know if I can get notifications without posting a reply so here is a reply. 🙂
I use an OpenOffice file derived from a Microsoft Word file off of the web. For the front, I used GIMP to size an image from a picture I had taken, and dropped my call sign on top of it. I have them (laser) printed on heavy stock from a .pdf file at a local store.
Getting some QSL cards was important to me when I started in ham radio because when I was a kid I wasn’t able to get International Reply Coupons to try to QSL short wave stations. (The US Post Office no longer sells or accepts IRCs.) Some hams or their QSL agents collect postage stamps.
I believe that some countries require people to demonstrate DX SWL before they can get a 2-way comm. license. I’ve only gotten a few such QSL requests but I really like responding to them.
LOTW is automatic with WSJT-X, JTAlert, and DXKeeper (one of the *free* DXLab collection of programs) talking to each other. Now I try to get cards only from hams that don’t use LOTW and whose DXCC I really need.
(Fun trivia: The Ponzi Scheme run by its namesake was not the first such scheme, but his started out with buying IRCs in Italy and selling [exchanging?] them at a higher price in the US. The arbitrage was one thing, but unfortunately he promised huge returns to investors and started using money from new investors to pay previous investors.)
I sent them some detailed, written comments beforehand. It’s a very poorly written bill and it ignores serious aspects of privacy and information security in addition to trying to say something that isn’t well defined about RF safety and antennas.
Brian, I agree, if ham radio didn’t require learning something, it would just be a long distance version of existing consumer radio services. I don’t think that would do anything for “promoting international good-will.” So I don’t think we need a change in the degree of commitment, I think we just need to be more flexible in which areas we support and encourage for the “gateway drugs” to making use of the RF spectrum we have now. That doesn’t mean doing everything, it means finding things to do with RF that are more compelling than the alternatives that people have available now.
I’ve never really worked 6m very much, so I’m really looking forward to trying it out on Field Day. I will also take a little time helping to assemble the beam antennas in case I want to set one up for 6m at home. (6m antennas take up a lot less room than those for the longer wavelengths/lower frequencies, so a 6m atennna should fit into my back yard, and 6m propagation will get more and more interesting now that the solar cycle is heading upwards.) Plus, this year’s Field Day layout, adjusted to be more suitable for the tail end of the pandemic, won’t entail all of that walking across the field and back to visit the different stations each in its own little tent: all of the stations will be nearby under the pavilion where we can see how they are used (while still maintaining a safe distance and getting good ventilation).
Dimension 4 uses SNTP (Simple NTP) instead of NTP (Network Time Protocol). (See <https://www.orolia.com/sites/default/files/document-files/Differences_Between_NTP_and_SNTP_v1-02-13-19.pdf>. SNTP only checks one server and uses simpler algorithms than NTP. For example, SNTP makes the PC’s time setting simply jump to the correct value.) It’s certainly easier to find Dimension 4 on the Windows Start menu than to find the Windows setting for the NTP server under the control panel for changing the time zone, and Dimension 4 has a far longer list of time servers built into it than the Windows 10 setting does so that you can find one closer to you. (Although I guess the network routing affects this.) So I installed Dimention 4 on my shack’s Windows 10 machine.