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Sir, tasks that moderators can't do. All political differences aside. Please do not put such thoughts in writing. In Austria and Swabia, people believe that what is written down might become true. It

I believe that when the group was set up that the default may have been to not allow members to add to that. I changed that a couple of days ago, so any member can add files. So just go to the forum,

I've investigated several Q measuring methods. Appended to: https://www.kn5l.net/Inductor-Plots/VNWA-Measure/ is using Voltage Ratio. DG1032 used as generator and Oscilloscope used as a RMS voltmeter.

Eric, Maybe you could help with info on how to add the Files section to this group. Thanks, Mikek

I am game I am also assisting moderating the tek scopes group. I am in the est time zone Eric drkirkby@...> wrote:

A moderator or owner needs to approve the first few posts of others. I am looking for someone else to share the moderation with - ideally someone in the USA or Canada, as your time timezone will match

And speaking of the late Marshall Leach, his low noise paper in the Proc. of the IEEE is filled with detailed analysis. And it's available here:

Prof. Lee has it right… Here’s yet another low-noise preamp design from my website, with a very low input impedance that is roughly noise-matched to a similar low-impedance source. I was trying to

Good Day, interesting thought on the 50% FSD, David - thanks. R&S has a long history of scales that go a tad over the ?usual‘ FS display. See for example their?more popular type UVM microvolt

AVO’s 1, 2.5, 10 ranges look less cluttered to me (but then I am used to my AVO 8 Mk2 that I bought in 1965). The 1, 3, 10 sequence gives a visual “beat” between the tick marks on the two

Although the scales are marked 3.0 and 10 on the R&S instrument, I note that the full-scale on the 3 V range is 3.2 V. It looks to me as if the 10 aligns with sqrt(10)=3.16. I think if you assume your

I'm sorry to disagree with F1EKU's answer, but it is only partially correct and therefore misleading in general. As I posted earlier, what you are implementing this way is effectively a noise

Or Rohde & Schwarz, may I add ? Cheers,? Magnus? Am Freitag, August 19, 2022, 16:14 schrieb Terry King <terry@...>:

I think John Addis would enjoy this group. Get Outlook for Android<https://aka.ms/AAb9ysg>

How is this different from the Charles Wenzel design?

If you are looking for inspiration for building a Phase Noise Test Set, please read the articles (In German ...) of Bernd Kaa ,DG4RBF, A Phase Noise Test Set, in UKW Berichte 4/2015 1/2016 2/2016. The

This is not true. The S/N and hence noise figure may decrease with addition of more parallel transistors, but it doesn't improve by 3dB for every doubling of the number. Paralleling transistors only

This is the total setup being made Its primarily intended to measure the phase noise performance of 10MHz oscillators and is inspired by the setup made by Charles Wenzel (

Thank you. I have never seen this done at RF / microwave frequencies, where I have more experience. Dave -- Dr. David Kirkby, Kirkby Microwave Ltd, drkirkby@...

Jim and I had a lively debate about his circuit. For one, he had to work pretty hard to replace a light bulb. For another, he didn't mention that, as Oliver had shown, the Wien bridge can give you