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Re: Possibility of additional functions.
I understand and thank you for answering.
By Palo · #3159 ·
Re: How to measure source impedance?
In order to measure source impedance, you're needs to measure amplitude for different loads. Since many RF PA cannot handle open output properly you will need to use two different loads which
Re: I'm looking for the latest PC software
Never mind, figured it out. THanks if you looked!
By epif18@... · #3157 ·
Re: I'm looking for the latest PC software
Try this one: https://www.rtl-sdr.com/forum/viewtopic.php?f=4&t=4881 I also have more fresh with fixed some bugs and TDR screens.TDR VSWR works great, but TDR Z (step response) still not works
Re: I'm looking for the latest PC software
Thanks Neil. I downloaded 1.03 and everything seems to work except the smith chart won't draw on my PC. Data comes in on all modes. Is there an install process. BTW, I was in the process of designing
By epif18@... · #3155 ·
Re: That green plastic tab
It is a screen protector that prevents the screen from getting scratched during assembly/storage, etc. peel it off if you want to
By Hendrik Fleming · #3154 ·
Re: That green plastic tab
That green tab might be to disable the battery during shipping?? Sent using https://www.zoho.com/mail/ ---- On Thu, 26 Sep 2019 17:00:15 -0400 mike watts via Groups.Io <wy6k@...>
By Ron Spencer N4XD · #3153 ·
Re: That green plastic tab
Mike, It's probably the cheap screen protector that's on it. Dave-KB1PVH Sent from my Galaxy S9 [email protected]> wrote:
By David Webb · #3152 ·
That green plastic tab
My unit arrived with a small green plastic tab sticking out the top near the left side.? What is that all about?? Do I remove it? Mike WY6K "... somewhere in the distance, there's a tower and a
By WY6K Mike Watts · #3151 ·
Re: Possibility of additional functions.
No, it is impossible, because NanoVNA uses much more slow CPU with much less memory. EU1KY uses hardware with powerful STM32F746G processor working at 216 MHz with high performance DSP core, 340 kB
Re: Experimental 256 point FFT Firmware
Current NanoVNA TDR implementation is almost useless, because it shows time with 1 nanosecond resolution. I experimented with different FFT sizes and it looks that 65536 has the best resolution for
By QRP RX · #3149 ·
Re: Experimental 256 point FFT Firmware
One thing I noticed about the screenshot attached to the first post, is the TDR function seems to involve some human interaction. The first peak is a false positive and the cursor at the second peak
By hwalker · #3148 ·
Re: errors of "error" models
Hello, Allow us, please, to inform you that we just uploaded the following two, very rare, references: [1] Richard H. Hackborn, "An Automatic Network Analyzer System", Microwave Journal, May 1968,
By gin&pez@arg · #3147 ·
Re: Possibility of additional functions.
Please be specific. I have no time to study the differences
By Erik Kaashoek · #3146 ·
Re: nanovna Battery Specifications
drkirkby@...> wrote: This one is just ?0.01 extra, from the same place, https://uk.rs-online.com/web/p/lithium-rechargeable-batteries/1445690/ but 3.45 Ah. Based on someone
By Dr. David Kirkby from Kirkby Microwave Ltd <drkirkby@...> · #3145 ·
Re: Experimental 256 point FFT Firmware
More time domain samples will not provide better resolution because of the upper frequency limit. However, if the UI allowed picking a peak on the time domain display, one could window that in time,
By Reginald Beardsley · #3144 ·
Possibility of additional functions.
Just the question of the beginner. Would it be possible to implement some of the features of this project into NanoVNA? http://www.hamskey.com/search/label/Antenna%20Analyzer Palo.
By Palo · #3143 ·
New file uploaded to [email protected]
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the [email protected] group. *File:* NanoVNA User Guide - cho45 - reformat-a.pdf
By [email protected] Notification <nanovna-users+notification@...> · #3142 ·
Re: Place to buy
Update as promised: Today, Thursday 26th September 2019 the status of my order from TomTop updated by '17 Track' to "arrived at local Post Office". I have collected, paid a nominal customs charge
By Nigel ZS6RN · #3141 ·
Re: NanoVNA Saver
Here's a ham radio application of where a zeroing function would simplify a process: Let's say you are building a vertical array for 40 meters - two vertical antennas, separated by some distance and
By John AE5X · #3140 ·