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Re: Charging,,,
Thank You ?Larry. Joe
By Joe WB9SBD · #26872 ·
Re: Charging,,,
Yes
By Larry Rothman · #26871 ·
Charging,,,
Simple question OK NanoVNA-H4 Unit is off and is charging via the USB cable. Red light is flashing I assume meand charging when it is steady and not flashing does that mean it is fully charged? Joe
By Joe WB9SBD · #26870 ·
Re: Using NanoVNA to measure receive antenna port impedance #measurement
Hi Arie, read your article with great interest. I understand my nanoVNA, I think, and I understand complex algebra and Z = R + jX. But I get VERY confused by standard radio or ham talk. I made a
By Andrew Kurtz <adkurtz@...> · #26869 ·
Re: Proper way to measure cable length
Hi dear friends!!! What kind is your nanovna??? I has purchase few days ago a SAA 2 V2.2 but I cant find this option... Can You help me please??? Em 07/02/2022 15:39, DiSlord escreveu:
By Jos¨¦ Silva · #26868 ·
Re: Using NanoVNA to measure receive antenna port impedance #measurement
Coming back on the title, how to measure... I wrote an article about that a couple of months ago, measuring the input impedance of a Elecraft K3 receiver. It was published in the SARC Communicator
By Arie Kleingeld PA3A · #26867 ·
Re: Quick Reference Card #learning #manuals
When I built my 486DX2 in 92, with huge help, my guru said to get 5x7 spiral-bound recipe card set to act as notes that he'd mention, as we go. It worked great! I had the reference, and writing things
By billsf9c <OOWONBS@...> · #26866 ·
Re: Using NanoVNA to measure receive antenna port impedance #measurement
Dave, Slight gaffe on my part... the 100dBuVemf is to calibrate the 60dB over 9 S meter full scale on all Kenwood Transceivers.. The dBuVemf is the kirchoff voltage source for sig generators with 50
By VK2CZ DAVID <16240244c1@...> · #26865 ·
Re: Using NanoVNA to measure receive antenna port impedance #measurement
Just lurking here, but does anyone actually look at an S meter while operating? Just kind of wondering. I'll admit I mostly do contests, so I'm way too busy to worry about the actual S meter reading.
By Ken K6MR <k6mr@...> · #26864 ·
Re: Is there a known ch0 input protection mod? #problem #nanovna
Yea I kept looking at the data sheet thinking, those dimensions can't be right! As much as wanted to order some to protect my equipment, I quickly realized that it would take a pick-n-place machine to
By Max · #26863 ·
Re: Using NanoVNA to measure receive antenna port impedance #measurement
I believe it. My very old (now) Icom 2100 single band VHF radio is even worse. I've seen the meter go from S1 to S9 with only a 6 to 7 db increase in power from the other end! Just asking, is it
By Max · #26862 ·
Re: Using NanoVNA to measure receive antenna port impedance #measurement
Input regarding Kenwood S-Meters. I have and have rigorously measured the S-Meter input power vs. S-meter indication. It's off the wall for that radio, if there were a wall!! At some points below S-9,
By W0LEV · #26861 ·
Re: Is there a known ch0 input protection mod? #problem #nanovna
As a reality check for those whose soldering skills might not have kept up to this task (mine for example): The Infineon two terminal part is about the size of Thomas Jefferson¡¯s eyeball on a 2020
By DOUGLAS WYMAN · #26860 ·
Re: Proper way to measure cable length
OK guys, here's a quick shot I found on the web. don't remember where but hopefully it'll answer your questions. Mike C.
By Mike C. · #26859 ·
Updated Wiki Page: Home #wiki-notice
The wiki page Home ( /g/nanovna-users/wiki/12336/159903 ) has been updated by Larry Rothman <nlroth@...>. *Reason:* Added Menu Structure Map links Compare Revisions (
By [email protected] Notification <noreply@...> · #26858 ·
Re: Ver 1.1.01 Menu structure Map
Yep. Printed out a menu map and embellished it with some handwritten notes. For just about every device I have, I also create a "Notes" document, where I add things I find/figure out along the way,
By Lou W7HV · #26857 ·
Re: Wikipedia erases nanovna
I am with Dragan - I found an article that lacked a complete history and what was there was incorrect. I tried to get it corrected and expanded, but I guess the original author had more clout so all
By n7wy · #26856 ·
Re: Proper way to measure cable length
Asuming you can physically measure the length of the cable or you can cut a smaller length of the cable. This is my way to find the velocity factor using Dislords fw: Measure the length of the cable.
By Torbj?rn Toreson · #26855 ·
Ver 1.1.01 Menu structure Map
I bought a NanoVNA H-4 and found it good (for my own use). I drew the MENUmap soft.ver. 1.1.01, when the right kind was not found on the Internet (at least for now). The MAP can be found in the Photos
By Markku OH2BLV · #26854 ·
Re: How do I interpret these results? #nanovna-h
Sorry about my late entry.. just joined. The ripples on the original 70cm VSWR image are the sort of thing regularly seen in microwave waveguide return loss measurements. These RL/VSWR ripples
By VK2CZ DAVID <16240244c1@...> · #26853 ·