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Re: My morse keys
If you have access to a 3D printer, you can try to make this small and lightweight key and see if you like it. The design can be downloaded from Thingiverse
By Torbjorn Skauli · #33407 ·
Re: QLG1 - Clarification on what the green LED should do
I have started to do some more precise frequency measurements using the Progrock and the QLG1 with "inverted logic" PPS output, with a 1kilohm resistor in the PPS line between the two boards (at the
By Steve Kavanagh · #33406 ·
Re: QSX to be shown at FDIM this year?
Hi Dan It wasn't YouTubed last year, but the audio was recorded for a podcast. http://qrp-labs.com/dayton2018.html has the slides and the link to the audio. Same procedure this year. 73 Hans G0UPL
By Hans Summers · #33405 ·
Re: QRP rags to riches #qcx
But you managed to avoid TECO. John F5VLF
By John Rabson · #33404 ·
Re: QSX to be shown at FDIM this year?
Does anybody know if Hans' presentation will be captured in any way? I'd love to go to FDIM just can't swing it. I will go to Dayton this year. I know one of Hans' presentations last year was
By Dan Reynolds · #33403 ·
Re: Qrp-labs and a Huff and Puff circuit board
Hand = Hans in my last post. Sorry Hans. [email protected]> wrote:
By Joe Street · #33402 ·
Re: Qrp-labs and a Huff and Puff circuit board
Thank you Hand for preserving a very cool bit of history so comprehensively on your website. Chaz Fletcher G3DXZ also had a minimalist 1 chip stabilizer I thought was very clever and looks pretty easy
By Joe Street · #33401 ·
Re: QSX display #qsx
Hi Steve Yeah, happy days. By the way, the URL is http://hanssummers.com/z80.html - but because the site has an old version of Joomla content management system, there seems to be some issue, sometimes
By Hans Summers · #33400 ·
Re: QSX display #qsx
Hi guys, I¡¯m waiting for Hans to complete the design of the QRP Labs computer. But wait. He¡¯s already done it http://150.ip-149-56-110.net/z80.html Have fun! Steve G0XAR
By Stephen Farthing G0XAR JO92ON97 · #33399 ·
Re: Qrp-labs and a Huff and Puff circuit board
Hi all Huff & Puff was a passion of mine. I was licensed in 1994, but for various personal reasons did not go on air. I did keep reading RadCom (monthly journal of the RSGB) and was fascinated by the
By Hans Summers · #33398 ·
Re: QRP rags to riches #qcx
Started on IBM 650 with direct machine instructions. Then FORTRAN (no #), FORTRAN II on IBM 70954, 7044, PDPs 1,5,6,7,8,9,10, CDC6600, C on various microprocessors and Postscript (yes it''s a
By David Birnbaum · #33397 ·
Re: Listening to WWV & WWVH on 5000 kHz this morning, on the QCX-80
Hello, Robert. Okaaaaay...it's rudimentary as it now stands... Currently, in the attached screen shot: Using the app on the left with the QCX-series rigs. Using the app on the right, (? ca 2000 ),
By n4qa at_hotmail.com <n4qa@...> · #33396 ·
Re: Qrp-labs and a Huff and Puff circuit board
If I had the time and a HG-10 to play with I would love to take the HG-10 circuit and put it into a modeling program. Then do an analysis to figure out which componets contribute the most to frequency
By Ed Kwik · #33395 ·
Re: QRP rags to riches/Fortran #qcx
When I first got interested in programming microcomputers, I was teaching at Econ at Butler. There was no CS department there, so a colleague and I taught a one-day seminar for the business community
By jjpurdum · #33394 ·
Re: QRP rags to riches/Fortran #qcx
How could I forget David Larsen et al of the Blacksburg Group when mentioning the Bugbook series?! Sorry Dave. I remember when you guys would come over for a visit and a chat. 72 / 73, Bill, N4QA
By n4qa at_hotmail.com <n4qa@...> · #33393 ·
Re: Listening to WWV & WWVH on 5000 kHz this morning, on the QCX-80
Hi Bill, Like Ben perhaps, I am left with more questions than answers/understanding.? I am sure many would love to understand more about what you have been doing if you are so inclined to describe it
By rentwist@... · #33392 ·
Re: Well, it appears that the QCX-17 is getting out on 15m too...
Thanks, Mike. In fact, "Leave the low pass filter in place and just put the bandpass/band stop after the output." is exactly what I've been doing. It's better than butchering the rig, I suppose, but
By n4qa at_hotmail.com <n4qa@...> · #33391 ·
Re: QRP rags to riches/Fortran #qcx
Ah yes, same Fortran IV era. 1971 MBA thesis "Counterculture and the Business World", predicting a softer, gentler capitalism (ha!). Hauled stacks of punchcards with survey data up to the Computer
By Steve in Okinawa · #33390 ·
Re: Well, it appears that the QCX-17 is getting out on 15m too...
Consider either a bandpass or band stop filter. ?You can use Elsie LC program (downloadable free) to test out the filter. ?My bandpass filters matched the test circuit very well. Leave the low pass
By Mike Donovan · #33389 ·
Re: Qrp-labs and a Huff and Puff circuit board
First step will be to get a PTO up and running. ?I also am looking at a Vackar. ?Very fascinating. ?One reason to try the PTO is to see if it is quieter than an ARDUINO VFO. ?It also draws
By Mike Donovan · #33388 ·