Great Video! I may have to buy a kit in the future. They look like a lot of fun to build. One thing you could show is curve tracing. I know you like showing how X-Y mode works on a scope.
Thanks for the video however when using a two tone test the PEP is halved . If you used a single tone you would see this. Also most tech books will say to use 0.707 X vpeak not vpeak to peak. VK2SS cheers.
Many thanks for the info on using a scope to look at power. But how would you check the power on higher power ----- safely. Watching your video while building the Ham and Hale from Tim Walford.
very cool. not sure i was able to see how the frequency would be modulated tho.. was looking for fm radio transmitter oscilloscope videos to try and get a thorough understanding of how radio works... building a fm transmitter circuit in a electronic circuit simulator app on smartphone maybe they do not behave the same way in app as they do in real life considering the app may not have a enviroment with electromagnetic waves that travel distance and interfere with other devices.
If one were to compare a single tone SSB with a 100% modulated single tone AM DSB signal (with carrier), in the time domain, what would be the difference? (I cannot find any discussion of this.)
A nice explanation of the two tone test. Did get a question in part related to this in my recent full licence exam, so of really practical value. Thank you. Why should the two test tones be harmonically unrelated?! M0YZT
The non harmonically related tones beat against each other and produce a distinctive envelope. Have a look at W2AEW's excellent video here: ua-cam.com/video/3DxBg6h4Fc8/v-deo.html he really knows his stuff!
@@LockdownElectronics So, in a practical sense, if I ever buy another radio, look for one with a higher TOI. Use signal attenuation to reduce the TOIMPs by a factor of 3 and don't try to mix the output from my twin Rhode and Schwartz signal generators with a Bamix! Its amazing when the lights go on.
What is the point of this video unless you mention 1.which signal generator did you use 2. values of the the resistors required for the summming circuit ?. It could have been the best UA-cam, video on 2 tone SSB linearity ... 73.
Great video Bill. I learned a lot today for sure!
Great Video! I may have to buy a kit in the future. They look like a lot of fun to build. One thing you could show is curve tracing. I know you like showing how X-Y mode works on a scope.
My analog scope has a curve tracer function, see it here :- ua-cam.com/video/TCYLMDqf8c4/v-deo.html
Thanks for the video however when using a two tone test the PEP is halved . If you used a single tone you would see this. Also most tech books will say to use 0.707 X vpeak not vpeak to peak. VK2SS cheers.
Many thanks for the info on using a scope to look at power. But how would you check the power on higher power ----- safely. Watching your video while building the Ham and Hale from Tim Walford.
very cool. not sure i was able to see how the frequency would be modulated tho.. was looking for fm radio transmitter oscilloscope videos to try and get a thorough understanding of how radio works... building a fm transmitter circuit in a electronic circuit simulator app on smartphone maybe they do not behave the same way in app as they do in real life considering the app may not have a enviroment with electromagnetic waves that travel distance and interfere with other devices.
If one were to compare a single tone SSB with a 100% modulated single tone AM DSB signal (with carrier), in the time domain, what would be the difference? (I cannot find any discussion of this.)
A nice explanation of the two tone test. Did get a question in part related to this in my recent full licence exam, so of really practical value. Thank you. Why should the two test tones be harmonically unrelated?! M0YZT
The non harmonically related tones beat against each other and produce a distinctive envelope.
Have a look at W2AEW's excellent video here: ua-cam.com/video/3DxBg6h4Fc8/v-deo.html he really knows his stuff!
@@LockdownElectronics Thanks Bill, will do and put my thinking cap on.......
And of course there is the third order intercept, that should keep you thinking a bit more!
@@LockdownElectronics So, in a practical sense, if I ever buy another radio, look for one with a higher TOI. Use signal attenuation to reduce the TOIMPs by a factor of 3 and don't try to mix the output from my twin Rhode and Schwartz signal generators with a Bamix! Its amazing when the lights go on.
What is the point of this video unless you mention
1.which signal generator did you use
2. values of the the resistors required for the summming circuit ?.
It could have been the best UA-cam, video on 2 tone SSB linearity ...
73.