New user, dove in above my head.
I have the circuit below, I built to remove Common mode signal from a 225ft CAT6 Feed LINE. It works extremely well. So now I want to know what loss I have put just before my radio. (The 225ft feed
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Mikek
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#14120
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Re: white screen and flashing
Great, tnx for the lead. With the saver sw working fine, I should be good to go, makes sense rich
By
Rich k0zx
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#14119
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Re: Definition of terms
I agree with much of what you have said. In the days before the Internet it was a real struggle to find a textbook or magazine article which covered a subject of interest. Nowadays there is a plethora
By
Roger Need
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#14118
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Re: Help Testing a Low Pass Filter
Thanks...
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avvidclif
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#14117
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Re: Definition of terms
No, it isn't "you just gotta know". Those of us who actually spend the time and make the effort to find an engineering sound reference online which everyone can access to answer the question(s),
By
W0LEV
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#14116
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Re: Installed an ST32F303 in my Ver 1 nanoVNA
#hardware
#firmware
#bootloader
#hack
#mods
Yes, I think I'll order from Mouser, Newark or Digikey - they have them for around $10ea (I tried to save $$ but....)
By
Larry Rothman
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#14115
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Re: white screen and flashing
The traces on the LCD flex circuit can crack if the flex is bent at a right angle. Also, a few other forum members have seen this issue - they carefully removed the LCD (just release it from the metal
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Larry Rothman
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#14114
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Re: white screen and flashing
Its the activity LED that's flashing, always. Just tried the usb path and yes that's ok, so a display issue does appear to be the issue, just ran a few sweeps and ok except for screen still white.
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Rich k0zx
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#14113
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Re: Installed an ST32F303 in my Ver 1 nanoVNA
#hardware
#firmware
#bootloader
#hack
#mods
I¡¯m just asking in parentheses why don¡¯t you buy from a reputable seller? With us, farnell is a good name. -- *** If you are not part of the solution, then you are the problem. ( http://ha3hz.hu/
By
Gyula Molnar
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#14112
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Re: Definition of terms
I guess I am just the opposite. I'm a smart guy and good at figuring things out. I will spend literally hours searching high and low for information before I break down and ask someone. I almost
By
Jim Shorney
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#14111
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Re: white screen and flashing
Which LED is flashing - the charge or the other activity LED? The activity LED flashes as a sweep is occurring. If you're only getting a white screen, check that a solder connection under the LCD has
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Larry Rothman
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#14110
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Re: Definition of terms
Hi Bruce, This forum is run by Amateurs for Amateurs and the Wiki and Files sections have been put together over time (the forum is 1 year old now!) from questions that were asked and answers that
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Larry Rothman
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#14109
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Re: white screen and flashing
hi Gyula, tnx for the info on your site on different models. Was there something there related to the problem I posted that maybe I missed?
By
Rich k0zx
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#14108
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Re: Definition of terms
Gary, This is something that I have issues with, too. It reminds me of the day, way back in the day, when I asked someone where I could find documentation regarding the Unix operating system. This was
By
BruceN
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#14106
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Re: Installed an ST32F303 in my Ver 1 nanoVNA
#hardware
#firmware
#bootloader
#hack
#mods
Well, unfortunately it appears I was sent a defective STM32F303. I removed it and put the original F072 back and my Nano is working again. I thought I might have a problem when I saw that the seller
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Larry Rothman
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#14105
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Re: Nanovna on Zorin OS
Hello, What I have not seen up to now is a *permission* problem fix with the access to the USB serial port (nanoVNA). What to do: # Add user to group dialout, for USB-Serial access. $ sudo usermod -a
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Rudi
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#14104
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Re: ¡°Fixture In A Hurry¡±. And a Transformer.
Finger mistake 20Log(10)(1/67) = ¨C36dB
By
Lee <lee@...>
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#14103
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Re: NanoVNASaver Runtime Fault on Manjaro / Arch Linux
#nanovna-saver
#linux
Weird! I tried get it working on my Windows PC, and everything seemed to be going fine. However, while using the calibration assistant built-in to NanoVNASaver, I had a similar crash due to pyserial.
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Ignilux
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#14102
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¡°Fixture In A Hurry¡±. And a Transformer.
Although I got my NanoVNA back in ?February? I have not taken time to work with it much. I did purchase a bag with ?10? PCB edge mount SMA connectors and after yesterday¡¯s traffic about ¡°NanoVna
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Lee <lee@...>
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#14101
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Re: Rotted Link to NanoVNA-Saver on Wiki
Lee, When accessing web links, if you find a dead link, go up one level to see if anything has changed. If you look at http://gunthard-kraus.de/fertig_NanoVNA/ You will see there is a German and
By
Larry Rothman
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#14100
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