This video answered questions I had that no other video answered. Thank you!
@quantumradio2 күн бұрын
Thank you for the comment and I'm glad the presentation helped out. 73.
@davidmorefield38573 күн бұрын
Great video. I may need to rig up one of these and test. It sure would be nice to dig people out of the noise a little better; especially when I am using an EFHW for POTA. About how long of a cable did you need for 17 turns?
@quantumradio3 күн бұрын
David, I think it was about a 2ft length of coax. A bit longer wouldn't hurt though. Best of luck! 73.
@davidmorefield38572 күн бұрын
@@quantumradioThank you sir!
@newsjunkie30007 күн бұрын
Fascinating! I have been wondering about this. Thanks!
@quantumradio7 күн бұрын
Thank you for the comment. 73.
@keelodea9 күн бұрын
saludos cordiales, muy interesante el video, estoy empezando en esto de la radio, mas como se hace con tema de las radio frecuencias, y el tipo de conexión para las las dos antenas en el aparato? gracias por compartir y 73's
@quantumradio9 күн бұрын
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.
@tatsu20610 күн бұрын
Man I'm glad you made this, I've been struggling with my Anan G2 setup
@quantumradio9 күн бұрын
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.
@Utahforrest11 күн бұрын
You have a great fist
@quantumradio11 күн бұрын
Thank you for the comment. Hope to see you on the air on CW! 73.
@semitruckstv484717 күн бұрын
E
@AngelGimenezGarridoАй бұрын
Muchas radio
@ke5wl804Ай бұрын
Prickly Pear fruit or Indian Fig. Can be eaten raw or made into jam or jelly.
@quantumradioАй бұрын
Thank you for the comment letting me know what the cactus fruit is called. 73.
@newsjunkie3000Ай бұрын
Hi Stepen! Thanks for the fun video. I added you to my hamalert so I can hunt your next activation. 73 from KM3STU, Stuart
@quantumradioАй бұрын
Hey Stu! thanks for the comments and hope to see you on the air! 73.
@jacobvandijk65252 ай бұрын
@ 03:06 Current-density J = charge-density x velocity = (n . q / vol) x v = (Q / vol) x dz/dt = (Q / dt) x (vol / dz) = current / area. @ 30:50 This seems to be a nice result, but it is not complete. There is no time-dependence and thus, there is no acceleration! The problem is solved by using an oscillating current: I = I(max) . exp(w.t). This exponential is missing in the video.
@quantumradio2 ай бұрын
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.
@jacobvandijk65252 ай бұрын
@@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!
@quantumradioАй бұрын
@@jacobvandijk6525 Of course. No offense taken. I sincerely appreciate your comments and insight. Have a good one!
@fnordist2 ай бұрын
I use RM-Noise, 100x better.
@ihavecojones2 ай бұрын
This is the most straight forward and comprehensive MMANA GAL tutorial i've ever watched. And I watched quite some tutorials. Thank you!
@dantheman5222Ай бұрын
What you said + Me
@470smith2 ай бұрын
Is firmware 2.00x a newer version? Wsjtx is working for me with the 2.00x firmware.
@quantumradio2 ай бұрын
Thanks for the comment. Yes, I'm running 2.00x now and WSJT-X worked fine with it. Best of luck & 73!
@veronicanoordzee64402 ай бұрын
Very nice and clear writing.
@quantumradio2 ай бұрын
Thank you for the comment. Hope the derivation was helpful.
@veronicanoordzee64402 ай бұрын
@@quantumradio Absolutely. From the book I wasn't so sure I got things right. But now I have. Thanks for the confirmation.
@janiceemery20082 ай бұрын
I am learning CW also. I am very intrigued by this radio. I think it is its size and how well it does for the size it is. Do you really like the radio and would you recommend it? Thank you for sharing this video. I love it.
@quantumradio2 ай бұрын
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!
@veronicanoordzee64402 ай бұрын
Very nice ... in all aspects ... like the other antenna-videos. Worth a playlist ;-)
@quantumradio2 ай бұрын
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.
@veronicanoordzee64402 ай бұрын
@@quantumradio Exactly what I hoped for. Thank you very much!
@Sidmi5utc2 ай бұрын
I have both radios also. I rarely use the 7300 now as I find the rx audio too harsh to listen to for any length of time. The G90 is on all the time now in my shack. Now, if XIEGU could make a base radio version of the G90 I think it would be popular.
@quantumradio2 ай бұрын
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!
@no5x9373 ай бұрын
Isn't the counterpoise on the 50ohm primary side of the 49:1 unun transformer while the antenna is on the 2450ohm secondary side? How does MMANA compensate for this impedance transformation of the counterpoise? And how do you compensate for the primary parallel 110pf capacitor in your model? Have you built, tested, and measured the actual length's of the antenna against the simulation?
@quantumradio2 ай бұрын
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!
@MauriceCalis3 ай бұрын
NOT TO GO TO BOUVET ISLAND AND ARE NOW PLANNING ON ACTIVATING A DIFFERENT RARE AND MUCH NEEDED X END OF 5 WPM TEXT = QST DE W1AW & =
@pastorlarry74703 ай бұрын
When I select programmer I don’t have the option Ardunio
@quantumradio3 ай бұрын
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.
@pastorlarry74703 ай бұрын
@@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
@williambob1113 ай бұрын
When I'm using js8, it's TXing at .01W. How can I get it to TX at 4 or 5 W?
@williambob1113 ай бұрын
NM...LDO..I had the js8 slider all the way lowered.
@siddharth46623 ай бұрын
Hi... have you used a velcro to install the radio?
@quantumradio3 ай бұрын
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.
@MK-rm4up4 ай бұрын
I'm a Japanese amateur radio operator. This video was very helpful. I understand that a technique is required to analyze EFHW with MMANA. I would also like to introduce this video to amateur radio operators in Japan. thank you!
@KA4UPW4 ай бұрын
Sounds crappy. I know it can do better
@quantumradio4 ай бұрын
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.
@rkwmazowsze26204 ай бұрын
How to model a 20m-6m hexbeam?
@oakforestamateurradioclub60134 ай бұрын
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.
@jmac217x4 ай бұрын
I see you took the easy way out! I'm over here getting prepped to build that Y-Cable! lol great video with a real focus on the radio rather than bouncing over to the computer too soon
@NerminQadry4 ай бұрын
Can I have a chartThe division circuit has 4 bits ؟
@quantumradio4 ай бұрын
Nermin, unfortunately I don't produce charts.
@NerminQadry4 ай бұрын
@@quantumradio ok
@venturaronald43554 ай бұрын
Muy buen video, solo no me quedó claro porque incluyó el valor de N al lado de b
@quantumradio4 ай бұрын
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.
@lancerkind4 ай бұрын
How can one use Cloud 9 with a private GitHub repository?
@quantumradio4 ай бұрын
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.
@lancerkind4 ай бұрын
@@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?
@lancerkind4 ай бұрын
@@quantumradio Thanks for the reply!
@bharathbala43014 ай бұрын
Thank you
@quantumradio4 ай бұрын
Thank you for the comment.
@user-jp5zp8uh5s5 ай бұрын
We know that gama is =v^2-v^1/v^1(T^2-T^1). So why this?
@quantumradio4 ай бұрын
Thank you for the comment. Unfortunately I'm not tracking your question. If you can point the time mark where the confusion is, I may be able to help.
@ACU525 ай бұрын
Sorry, new to all this. No DigiRig?
@quantumradio5 ай бұрын
Thanks for the comment. My setup didn't require the Digirig, just a sinigle USB cable from (tr)uSDX to the Windows laptop. I have heard of folks having good luck with the Digirig. It may be that the Digirig connection is more reliable than the single USB cable I've used; however, I don't have first hand experience of the Digirig connection to compare. Best of luck and 73!
@jaybae80565 ай бұрын
this is a wonderful tutorial, explained well. thank you. i am just starting out on my quantum chem/ mechanics learning journey, and this video has helped me so much. i thank you again.
@quantumradio5 ай бұрын
Thank you for the comment. I'm glad that this was helpful. What I understood that the math was saying didn't make sense initially but after looking more carefully into it, and considering the r-squared factor, the math was of course correct. Best of luck in your QM journey, it WILL be worth it!
@goddlediddles5 ай бұрын
I'm sorry, but I had to stop watching after 2 minutes. What's wrong with the sound? It's booming, phasing, lacks clarity, and sounds as if it is coming from a cave. It's a pity, because the info sounded spot-on.
@quantumradio5 ай бұрын
Thanks for the comment. No need to apologize at all. You are 100% correct, the sound in this video is terrible. It was one of my first ones and I didn’t have an external mic on the laptop. So what you hear is the built in mic in my old laptop. Either way thx for the feedback & I will remake the video in the near future since the MMANA GAL program continues to be very useful to many hams. 73.
@Rlaay6 ай бұрын
Super helpful! Thanks.
@quantumradio6 ай бұрын
Thank you for the comment and best of luck in your projects!
@eljam81386 ай бұрын
i learned alot from your videos ! thank you. maybe a dumb question, but is it possible to learn CW using the trusdx somehow? instead of buying a learning device?
@quantumradio6 ай бұрын
Thank you for the comment. Yes, in my opinion the (tr)uSDX is good for learning CW. It lets you pick a straight key or an “Iambic” key which is a fancy word for paddles. If you pick Iambic key you can then select the speed for the key, e.g. 15 WPM. You can then set transmission power to zero and use the (tr)uSDX as a practice oscillator.
@mattf54626 ай бұрын
I wish Thetis ran on linux. I'm done with windows.
@quantumradio6 ай бұрын
Thanks for the comment. There is a version pre-loaded in the raspberry pi inside the Anan G-2 called piHPSDR that runs on debian; however, it's got a lot less bells and whistles compared to Windows Thetis. Best of luck & 73!
@hermitcrab496 ай бұрын
Many thanks for running through the basics. This video has really helped me.
@quantumradio6 ай бұрын
Thanks for the comment and glad it was helpful. Best of luck with all your projects & 73!
@jorgepu2lqx4006 ай бұрын
Buenas noches. Utilizo uSDX+ HF en FT8 y también me gustaría usarlo en Win Express, pero no pude configurarlo. Mi versión uSDX es Chine... 😞Mi QRZ es bueno: PU2LQX Tks, 73's
@quantumradio6 ай бұрын
Piensa que es problema de Software o de Hardware? es decir, todo los seteos del Winlink>VARA estan bien? Porque si logra que el FT8 funcione, esta ya casi a la meta con Winlink. Solo restan pocos seteos adicionales para que el Winlink trabaje. 73!
@jorgepu2lqx4006 ай бұрын
@@quantumradio Hola Quantum, gracias por tu atención. Creo que el problema es "operador"... 😄 Winlink y VARA están bien, pero no encuentro la manera de establecer una conexión entre la radio y la aplicación. De hecho, al intentar configurar, se leyó el modo VOX, que uso en FT8.
@quantumradio6 ай бұрын
@@jorgepu2lqx400Jorge, suerte con tu "troubleshooting". Ojo con la version de firmware para el (tr)uSDX. Yo creo que usé la version de software/firmware = 2.00u y esto se puede verificar con la opcion de menu 9.7. 73!
@jorgepu2lqx4006 ай бұрын
@@quantumradio Thank you, so be it. Good weekend!
@honeybadger61277 ай бұрын
I have this same setup between my PC and the tr usdx.. but my input is showing red. Lowering the virtual mic setting does not lower the input and it stays red. I can "mute" it but cannot lower it. Is this an issue?
@quantumradio7 ай бұрын
It sounds like you're talking about the needle on the signal meter at the bottom left of the VARA window showing red and not coming down to yellow or green. I'd suggest lowering the volume in the (tr)uSDX to 4 or 5. 73.
@mylesl28907 ай бұрын
seems really cool
@quantumradio7 ай бұрын
Thank you for the comment. Yes, the Thetis software is amazing. The noise reduction "2" is a particularly good algorithm for noise reduction. Best of luck and 73!
@drewrinella16467 ай бұрын
Ok, I feel better after watching this video. I was having issues with the driver dropping out intermittently, and I see it did it to you to here at 11:45 and 13:13, before returning back to normal operation a handful of seconds later. This has been unresponsive to my attempts at troubleshooting and RF mitigation. I know a lot of people say they're not having issues, so I exchanged my TruSDX to Amazon just in case I got a faulty one, but if the new one does this same thing I think I'll just use a Digirig until the issue is potentially fixed in future firmware or driver updates. I know currently Manuel has said his workload is really high, so he's not going to offer support for the micro USB-only interface at the moment. It's still a great radio and I can't wait to see where it goes in the future!
@drewrinella16467 ай бұрын
Thank you.
@va3kbc8 ай бұрын
NR2, PureSignal, Multitude of Skins, ESSB Audio 4k up to 8K send and receive for High Fidelity Audio!!! 10 Band Parametric EQ and CFC. Viewing the whole spectrum . Ease of going through the tabs for all the settings. Thetis Software updates that keep improving performance and it is like getting a new radio free of charge thanks to Richie and others. The list goes ON and ON!!!!
@quantumradio8 ай бұрын
Agreed. I just tried Diversity reception w/the G2. The tech in Thetis coupled with the amazing G2 hardware really are fascinating. Still learning, 73!
@TechAdvizo-fb4vu8 ай бұрын
Excelente video. Gracias.
@quantumradio8 ай бұрын
Que bien. Gracias por el comentario y suerte con su proyecto. Saludos!
@SuburbanDXing8 ай бұрын
I'll be curious to see over time how you compare this to your IC-7300...hoping for a follow-up video down the road. Thank you for posting this and 73! de WX0V
@quantumradio8 ай бұрын
Thank you for the comment. I love the IC 7300 so it's difficult for me to say that the ANAN G-2 is now my favorite shack transceiver. They're both fine rigs but the signal processing in the G-2 blows my hair back. It's sort of like listening to FM radio when you click on the "NR2" noise reduction. 73!
@user-ok3rr3lp6v8 ай бұрын
the icom has too much noise in the background.
@quantumradio8 ай бұрын
Thank you for the comment. Yes, my video was not an in-depth test rather it was my observation from a "typical user" perspective. The IC 7300 for sure is a great rig with many noise processing options. Best of luck & 73!
@DavidRodriguez-me4ny8 ай бұрын
Puedo conectar 2 baterías de lifepo mismo amperaje pero diferente marca??
@quantumradio8 ай бұрын
David, pienso que no es recomendado con baterías de la misma marca y aun peor de 2 marcas distintas. Lo digo pues las baterías deben de cargar y descargar uniformemente o se crea una corriente entre las mismas dada la diferencia de voltages. Si las baterías son de diferentes edades o los BMSs (Battery Management Systems) tienen problemas, etc. Recomiendo leer el MSDS (Material Safety Data Sheet) de cada batería a ver si es recomendado o no por el manufacturador. Saludos.
@kasel1979krettnach8 ай бұрын
this formula poses so many questions. 😅 first and foremost the violation of general relativity
@quantumradio8 ай бұрын
Thanks for the comment. The way I understand it, special relativity (SR) may be the bigger concern since General relativity (GR) would require large masses to affect the curvature of space-time; however, SR kicks in at high enough velocities so it could affect us. Recall that the assumption in the derivation is that r=ct >> ut so the lurch is a lot slower than the speed of light. So we should be OK to neglect SR. 73!
@kasel1979krettnach8 ай бұрын
@@quantumradio i think it violates the equivalence principle. a charge thats is gravitaionally accelarated should radiate but then a co-accelareted observer should be able to observe the radiation - and by that be able to tell free fall from weightlessness
@quantumradio8 ай бұрын
@@kasel1979krettnach Andreas, the equivalence principle refers to the equivalence of gravitational and inertial mass. In this case gravitational acceleration plays no part. Best of luck in your studies.
@kasel1979krettnach8 ай бұрын
I was referring to that elevator thought experiment. try falling alongside an electric charge and you have a way to determine whether you are free falling or in free space. charge radiates --> free falling (acceleration), does not radiate = free space. My studies are long past. @@quantumradio