Seminar on VNA Basics
1 Hour... Good info... Excellent Intro.... Time well spent.... From R&S. https://event.on24.com/wcc/r/4871656/262AE419BBD73FA413BB90B6EEB73F0D?partnerref=mid_28133_na_m4c_inv-vna
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alan victor
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#39713
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Re: VNA-F V2 brand new screen black
I would return it. Alternatively check with the manufacturer if your unit is genuine and that their warranty policy is. [email protected]> wrote:
By
Dragan Milivojevic
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#39712
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Re: VNA-F V2 brand new screen black
I got it from an auction site called nellis auctions. They sell surplus amazon merch. I have called them and they are will to return my $$ upon return of defective unit. But cannot exchange it for a
By
alsodanev2@...
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#39711
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Re: How to calibrate IF OFFSET (intermidiate frequency) in nanoVNA H4
Thanks, looks like this is the only answer I got. Where could I get a more definite answer? This should be mentioned somewhere, in a documentation or in gitlab. :/
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christianidis@...
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#39710
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Re: #firmware #nanovna-h
#firmware
#nanovna-h
I managed to get it work with v1.2.40 firmware from DiSlord and the DfuSe Demo software. Initially I was using the wrong path to update the firmware, essentially uploading instead of updating, like in
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ihrinwe@...
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#39709
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#firmware #nanovna-h
#firmware
#nanovna-h
Hello everyone! I managed to brick my nanoVNA H (clone, as I've found later on this forum) and now it is showing a white screen. First of all, I should have read this forum before the purchase and buy
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ihrinwe@...
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#39708
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Re: NanoVNA-H version 3.6.1_SM_ST - ZEETK?
Yes, use ZeeTK, the new version firmware will perform an LCD clear during the boot process and the color stripes will disappear after boot.
By
Hugen
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#39707
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Re: VNA-F V2 brand new screen black
You might start with stating where you got it from? [email protected]> wrote:
By
Dragan Milivojevic
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#39706
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VNA-F V2 brand new screen black
So i have in front of me a brand new in package/container: a brand new -f v2 All metal housing, protective plastic on screen. Upon start. Turn on. Screen flashes white then goes dark. Very faint lines
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alsodanev2@...
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#39705
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NanoVNA-H version 3.6.1_SM_ST - ZEETK?
I have NanoVNA-H version 3.6.1_SM_ST. I had 1.2.27 (20.02.2024) from the factory. During startup I had dashes, colored stripes on the screen. I downloaded new software from hugen79 in version 1.2.43.
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SP1RAC
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#39703
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Re: How to calibrate IF OFFSET (intermidiate frequency) in nanoVNA H4
Hi I think a 12Khz IF offset should be kept at default value and forget it , it gives the optimal Harmonic ratio filtering with the RC 1sft ordre low pass filter in the Hardware of nanovna 73's Nizar
By
Team-SIM SIM-Mode
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#39702
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How to calibrate IF OFFSET (intermidiate frequency) in nanoVNA H4
I am learning about RF and antennas and I want to understand how do I figure out how much the IF offset is, in NanoVNA-H4. I could not find any article explaining how to check if the default IF OFFSET
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christianidis@...
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#39701
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Re: New user
I first used a VNA when I was in Engineering within a National Broadcasting Network (CBC) and we used it for optimizing our transmitters and antenna systems. As a Young engineer it was an eye opener
By
VE6LX
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#39700
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Re: Smith Chart accuracy - what am I missing ?
Hi All, In the post title it says "what am I missing ?". Well, I now know what I missed - tapping the "Done" key when calibrating ! I am so used to calibrating my DG8SAQ and Sark 110 VNA's that I
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Stewart Baker
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#39699
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Re: New user
YouTube is your best friend! Matthew KD6KVH
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Matthew Rapaport
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#39698
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Re: New user
It is a very powerful and useful device despite its size and cost. I have used mine for many purposes including using the TDR function recently to troubleshoot a feed line/antenna problem of a local
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Zack Widup
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#39697
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New user
I got my first Nano VNA yesterday, a friend who used to live 10 miles away, now lives 1000 miles away bought it for me along with jumpers and adapters. Today I set up "presets" for 80, 40, 20, and 2
By
Ryan Trullinger (KC0QNB)
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#39696
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Re: Measuring Impedance for the 433 MHz RTL-SDR Antenna
QUOTE: You will do far better to connect the right most antenna and collapse it *** Because the other two antennas shown in the image will not work well if at all on 433 MHz. The extendable
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W0LEV
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#39695
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Re: Smith Chart accuracy - what am I missing ?
Hi What Smith measurements given with the reference load, the short circuit and open terminaison ??? It can help to better understand what can be the issue 73s Nizar
By
Team-SIM SIM-Mode
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#39694
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Re: Smith Chart accuracy - what am I missing ?
Hi Donald, Thanks for that, it was pretty much what I was expecting, and ties in with what I am getting with my DG8SAQ VNA. I am also using a silver mica capacitor with about the same lead lengths.
By
Stewart Baker
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#39693
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