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Thank you for the comment/question. I have read that the truSDX on FT8 is very finicky as far as operating with the single USB cable and Guido's driver program for the PC. I have also found it to be only OK for FT8; for example, it sometimes looses sync with my PC and I have reset the truSDX. In your case, I'd say Windows 7 is quite an old OS since it was released ˜2009 and that may be part of the issue. You see, my setup used Windows 11. Now, as far as Rx getting the FT8 signal, that's a milestone. I mean it's quite good that you're getting that working since it implies that many of your settings are correct. When you Tx things go belly up to me speaks to the many variables in the setup, e.g. the single USB cable, Guido's driver program, the Windows OS, and perhaps most importantly the trUSDX itself. Don't get me wrong, I still think that the truSDX is a great little rig that sips current and works great. Heck I took it to England and did a POTA activation there where I got a Michigan station. However, Manuel and Guido clearly state that the truSDX is an experimenter's rig and should not be expected to work flawlessly like an ICOM or YAESU. I tend to agree. Love the radio but... it has compromises in its design to make it affordable. I still have the truSDX in my portable pack that I take as a backup in my car. I think highly of it and use if for CW but not really for FT8 anymore. Best of luck and 73!

@@quantumradio Thank you very much for your comprehensive response. You confirmed much of what I thought. I am looking to get a more serious rig soon but I also like experimenting which is why I decided to get my foundation licence for HAM here in England. Wull let you know if I get it working. All the best. 73s

Thank you for the question. I just looked at the back panel of my ANAN G2 and the DX Commander vertical antenna is connected to the ANT1 bnc terminal. The EFHW is connected to the RX 2 bnc terminal. Best of luck & 73!

Ok thanks, that is how I have my primary and secondary antennas attached as well. Thanks for the info. Art

Thank you for the comment. Yes, there was a Daiwa model CS 201 switch that I used to connect the one antenna to each of the two radios sequentially. 73.

Thanks! I was thinking about doing that, but actually afraid of molesting a radio 😃

Thank you for the comment. Best of luck in your projects and 73.

Lamentablement to cuento con la lista de componentes para este proyecto que hize hace 2 años. Mas ud. puede ver en el video los valores de resistencias que utilize. Aparte de los resistores, estan los integrados que tambien fueron especificados en el video, los switches que ud. puede obtener de amazon.com, y los cables para las conecciones. Saludos.

I used the CW straight key. 73.

Sorry ,The g90 have an actual key for cw? Or you you install an external?

@@mandytuning The G 90 doesn't have a built-in key. I had plugged in an external CW straight key for this project. Best of luck.

Los componentes que utilizé se pueden ver a partir del minuto 1:30 del video y son: el CD 4030B Quad XOR Gate, el F4081 Quad AND Gate, y el CD 4071B Quad OR Gate. Saludos.

Thank you for the comment. It was a perfect day to try out the IC-7300 backpack on a POTA activation. 73 and best of luck!

Gracias por el comentario. Saludos.

Gracias por el comentario. Ojalá que le haya sido útil. Saludos.

Thank you for the comment. BTW you may also find helpful the video lectures presented by Dr. Walter Lewin in his E&M 8.02 class at MIT. Best of luck in. your studies.

Thank you for the comment. Best of luck in your studies!

Thank you for the comment. Glad it helped.

Thanks for the comment. I am very impressed with the ANAN G2. 73.

@@quantumradio Thats good to hear! Are you using it with any amplifier etc?

@@MikeDent No, I don't have an amplifier or antenna tuner. I have a nanoVNA that helps me with my resonant antennas. 100W works pretty good especially on CW. 73.

Thank you for the comment and congrats on running MMANA GAL on Linux! I think that's what's so great about the hobby in that we experiment and challenge ourselves to learn new tech. MMANA GAL is a good tool to see if a particular antenna design is better or worse than another. I think it's straightforward and I personally like the wizard-like sequence of the tabs, starting on the left with Geometry>View>Calculate>Far Field Plots. Also, note that the Dielectric & Conductivity values are shown in tabular form at this URL. gal-ana.de/basicmm/en/#7 Best of luck & welcome to the hobby!

Thanks for the comment. The carry in bit Cin should be going to ground.

Thank you for the comment and I'm glad the presentation helped out. 73.

David, I think it was about a 2ft length of coax. A bit longer wouldn't hurt though. Best of luck! 73.

@@quantumradioThank you sir!

Thank you for the comment. 73.

Gracias por el comentario. Las 2 antenas independientes se conectan usando cable coaxial (RG-8X es el que uso). El transceptor tiene 2 conexiones BNC en la parte posterior: ANT 1 y RX 2. Los cables coaxiales provenientes de las antenas conectan en aquellos conectores BNC. La frecuencia que ud. selecciona en el transceptor sintoniza el receptor 1 (ANT 1) y esta atada al receptor 2 (RX 2), es decir cambia la frecuencia para un receptor y el otro cambia igualmente. Las frecuencias con las que nosotros los radio-amateurs trabajamos son asignadas por las autoridades del pais donde operamos. Como transmitimos ondas de radio potentes, nuestro equipo es una estación de radio y por esa razón nosotros los operadores (radio amateurs) tenemos que tener licencia otorgada por el gobierno para operar. Buena suerte con el hobby! 73.

Thanks for the comment. It's a great radio and Thetis a great software package; however, the SW has many levels which makes it a bit complex. Glad the video helped! 73.

Thank you for the comment. Hope to see you on the air on CW! 73.

Thank you for the comment letting me know what the cactus fruit is called. 73.

Hey Stu! thanks for the comments and hope to see you on the air! 73.

Thanks for the comment. (1) J = dI/dA = rho*v. (2) the analysis shown assumes only a snapshot in time which is why e*ikr is used without the eˆ-iwt part. I agree that it's not the complete expression since we're missing time dependence but it suffices to show the spatial character of the wave.

@@quantumradio Your videos are like a piece of art. That's why I come back to them. I don't want to criticize you, just add something. Thanks!

@@jacobvandijk6525 Of course. No offense taken. I sincerely appreciate your comments and insight. Have a good one!

What you said + Me

@@dantheman5222 Thank you for the comments. I'm glad it helped. 73.

Thanks for the comment. Yes, I'm running 2.00x now and WSJT-X worked fine with it. Best of luck & 73!

Thank you for the comment. Hope the derivation was helpful.

@@quantumradio Absolutely. From the book I wasn't so sure I got things right. But now I have. Thanks for the confirmation.

Thank you for the comment. The (tr)uSDX is my one and only POTA rig now a days and works great on CW mode. I've taken it to state parks in my area and even activated (CW) a park in England with it. I'm sure there are better, & more expensive, portable radios out there but I'm quite satisfied with it. As far as a recommendation, I hesitate a bit and would prefer to only share my experiences with the radio since we each have favorites and different criteria. I like its low current draw (˜50mA on Rx and ˜500mA on Tx), portability, versatility (CW and SSB modes), and low price (US$149 on Amazon). I hope that helps & 73!

Thank you for the suggestion. I've created the "Antenna Physics" playlist w/only the antenna videos in it. Plus the numerical integration in Python for the HalfWave Dipole antenna. Best of luck in your studies.

@@quantumradio Exactly what I hoped for. Thank you very much!

Thank you for the comment. I've heard a similar comparative audio report from another Ham radio operator. I tend to like the way both radios sound, though that's my personal view. 73!

Thanks for the toughtful comment. The way I look at it, the coax sheath is my counterpoise in the simulation. MMANA GAL doesn't consider an impedance transformation for the counterpoise, it does an impedance transformation from the feedpoint to the antenna element. The counterpoise is the ground wire, coax sheath really, connecting the ground on the transformer to my floating ground of my transceiver. I could probably fiddle more with the counterpoise in this model but I found that this simulation gave the insight that I needed to build the EFHW antenna and start testing it. I didn't model the capacitor as a load in my simulation. However, to your point, I have seen reports that the high frequencies are helped by using the capacitor but my model doesn't include this effect. Yes, I have built, tested, and folded (not cut) my antenna element to resonate on 40m, 20m, 15m. The EFHW antenna I built last year at field day is pretty much what I modeled here and it's the one that I take on POTA outings now a days. It's very portable and you can drape it over a tree branch, or use a fiberglass pole to hold up the antenna element end. This makes for a quick setup. Hope that answers the doubts. 73!

Thanks for the comment. It sounds like the version of AVRDUDESS that you're working with may be the issue. I used version 2.14 in the video so you may want to try loading an older version of that software. Best of luck & 73.

@@quantumradio thanks I think the AVRUDUDESS versions must be different now. I deleted off my computer and reloaded and I finally got it to work Thanks for the help

NM...LDO..I had the js8 slider all the way lowered.

Thanks for the comment. I used velcro tape to hold the head unit in place in the center console at the time that I made this video; however, I now have the head unit in a cubby hole left of the steering wheel. I used velcro to secure the head unit in the cubby hole also. Hope that helps. 73.

Thank you for the comment. Best of luck in your projects. 73.

Thank you for the comment. At 8:54 when NR2 is enabled it cleaned up the signal pretty good. I then unlicked NR2 at 8:58 and the noise came back. I enabled NR2 again at 9:07 and the noise went away, again. I then clicked on SNB at 9:14 and the signal became sharper in the higher frequencies and clearer. At 9:22 I enabled ANF and the signal was mostly unaffected since no Noise filters had been previously configured on this window.

Thank you for the comment. Unfortunately I've not modeled that antenna; however, I believe that you'd go into Edit>Wire Edit>XY, XZ, and YZ in MMANA GAL and draw out the segments. Best of luck with your project & 73.

Nermin, unfortunately I don't produce charts.

@@quantumradio ok

Gracias por el comentario. Si ud. se refiere al término bˆ2*N que se escribe en el minuto 8:58, el N sale pues la suma sin ningun termino con indice es equivalente a la suma sobre todo valor de i. Es decir, suma sobre i desde i=0 a i=N es igual a N. Entonces ese N multiplica a la constante que sacamos y pusimos al frente de la suma, bˆ2. Ojalá que eso sea mas claro. Saludos.

Hello. Unfortunately I don't know the answer to that question. I keep my projects in Github so I don't have to have a local source safe. I have working directories in my laptop or MAC which I clone from the main Github repository but in my workflow I really want to minimize having multiple copies of code due to security and versioning issues. My local copies are really working copies that get nuked after uploading to the mothership in Github. Best of luck in your project.

@@quantumradio I realized that my question was a little ambiguous so I've edited to say "private GitHub repository." You may have GitHub repos that are "private" meaning that you set the access controls on who can use the repo. Have you used Cloud 9 on such a repo or are all of your repos open to the public?

@@quantumradio Thanks for the reply!