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Justin, If you follow these things enough, sometimes with the more difficult to understand first, make the later simpler explanations just pop out at you and make sense. There is no wasted perusing of

Hi again, and basic principle of the output impedance measurement. [image: image.png] Step 1. measure outpunt voltage V1 with no load (open circuit) Step 2 terminate ouput with the known resistor Step

Hi all, this might be helpful. [image: image.png] [image: image.png] R should be ~ 1 - 2 kOhm, noniductive. 73 Predrag, 9A3QV

Thanks for this comment Gerard. I upgraded to from DiSlord 1.1 to DiSlord 1.2.00 on an H4.3 and it seems to work. I tried 300 ohm as Zo and it moved the 50 ohm load to the place it should be on a 300

Gerard, It looks like the latest H and H4 firmware from DiSlord also has the Port-Z rescaling. --John Gord

Gerard, In addition to the variable resistance fixture method, there is provision in some firmware versions to mathematically modify the displayed data to show what the response would be in a system

You can create your own by printing or phocopying a blank chart onto A4 transparency film.- Michael (GW7BBY)

Interesting! I use PCmatic anti-virus and it's perfectly happy with that site?? Rudy N6LF

Oops, 27 MB! 73, Justin B. KI5GKD

TNX, just downloaded it. Pretty hefty PDF @ 21 MB! Not sure I'll understand anything in it... :-\ 73, Justin B. KI5GKD

There are (were?) available plastic Smith charts with a rotatable outer scale and a slide-rule-like cursor, both pivoting on a rivet dead center on the chart. The cursor saved a lot of grease pencil

People seem to do it with variable resistors at input and output and tweak those untill the passband looks nice and flat. Then the resistors can be measured with a multimeter to find out the

Hello, I have a lot of 2 poles filters 20J26 Motorola and 45R15AZ. I can’t find the datasheet of these filters on the net, except on a site that tells me that the 45R15AZ is a 3rd harmonic filter,

Thank you! My browser wouldn't let me get it by clicking on the download button. But I was able to open it in pdf and then download. Al, K2WM

That book text site has a GOLDMINE of super books. Thanks for the link! The Smith applications text comes with a dozen or so plastic overlays that are used in the text as a means of solving designs.

My Malwarebytes firewall blocked the above link, and claimed it was due to a Trojan; false positive perhaps???IMHO, With regard to the file size differences of the previous two links to copies. One

You can get a free copy of the second edition here: https://usa1lib.org/book/2316817/89b4ef Rudy N6LF

Different editions of the book. David -- SatSignal Software - Quality software for you Web: https://www.satsignal.eu Email: david-taylor@... Twitter: @gm8arv

Hm, 27MB as opposed to the 18.6MB from the link that I just posted, and the two sites appear to be *very* similar, if not identical. I wonder what the differences are in the files? -- Member of the

This it? https://vsip.info/qdownload/smith-phillip-h-electronic-applications-of-the-smith-chart-in-waveguide-circuit-and-component-analysis-scitech-publishing-1995pdf-2-pdf-free.html -- Member of the