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Maybe after 78 years. I think it’s happening to me. Ed McCann AG6CX

Zahi Not sure why no one gave you the direct, easy answer. Chose the log mag display on your vna. That is return loss. Ron N4XD

Tnx Larry... Em qui., 17 de fev. de 2022 14:28, Larry Rothman <nlroth@...> escreveu:

I just threw out some 300 Ohm twin lead that was in a box of wire because it had deteriorated so much that the insulation cracked and pieces of it came off. That’s what happens to it after probably

I have found 300 ohm twin lead at garage sales or hamfests, etc. after I used the remaining length I had. In 2006 I made about a dozen J antennas for the Empire State Games (NY state). They were used

Maybe I'll just build some balanced line, or try some 100-120 ohm twisted pair.

Wireman has 300 ohm twin lead. I bought some about a year ago. https://thewireman.com/product/561-20-ga-str-copper-ladder-line-300-ohm/ > >

I needed some for a project about a year ago, and wound up buying a roll of "vintage" Radio Shack twin lead on Ebay. Wasn't expecting that.

Good luck finding 300 ohm twin lead in this day and age. When I go to Lowe's and Home Depot or other stores that sold TV hardware, I don't see it any longer. There's plenty of RG-6 and OTA TV antenna

Thanks, Roger. Larry - The SAA2 binary protocol is described in this document.... http://uglyduck.vajn.icu/PDF/vna/NanoVNA_GUI_UG1101.pdf Roger

Thanks Dave! Joe WB9SBD /W9ET

You don't "need" the bottom of the chart which is -j50. Read your value midband on the measured curve at 3.750 MHz (not critical). Extreme right on the Smith Chart is an open while the extreme left is

No, if I plug the USB cable from the NanoVNA to the PC and push the icon to open the NanoSaver software, NOT open up. If I unplug the USB cable the NanoSaver open up, I select SCAN Refresh and NOT see

Even easier, there's a command line way to get to any of the NanoVNA flavors, using NanoVNA-Saver. See this post from the nanovnav2 list: /g/NanoVNAV2/message/3001 Many thanks Jim

oK, UST TRIED WITH A STIMULUS SPAN OF 3.5 TO 4 MEG. Oops cap lock, anyway. The smith chart curve starts at the far right, short? or open? UG memory again,,, anyway the curve starts at the far right,

Then hook that twinlead up directly and go for it. That's pretty cool. I thought I had some 300 ohm twinlead in the garage, and I was going to do some tests with transformer and not, etc.? But I

You're not the only one. Oh wait, what were we talking about? Max

I am sorry that I asked that question again. I'm Old, The Brain is failing. I am lucky when i go to the basement to get a tool, to be able to remember what tool I went down there to get. Sorry, Joe

Here is a previous post where I show how to measure a 365 pF cap in this frequency range.... /g/nanovna-users/message/25725 This post was a response to this post >>

Larry - The SAA2 binary protocol is described in this document.... http://uglyduck.vajn.icu/PDF/vna/NanoVNA_GUI_UG1101.pdf Roger