Re: Measuring impedance at the bottom end of a ladder-line-center-fed wire dipole
Erik, thanks for responding. For the moment, I'm just trying to understand what is going on, impedance-wise, with my antenna system. Not that I am having "problems" that need to be "solved," just
By
KI7MWA
·
#8722
·
|
Re: Wait for V2 design or but current model on ebay?
Was searching for info on the v3.4 improvements and found this from hugen79 at a Gidhub message exchange where he mentions at least one of the improvements: hugen79 commented Nov 12, 2019: Noise
By
nanovnagroup@...
·
#8721
·
|
Re: Measuring impedance at the bottom end of a ladder-line-center-fed wire dipole
How do you normally operate the ladder line? Using a balun or via an antenna tuner that provides balanced output? In case you use a balun simply connect the nanoVNA to the balun and measure. When
By
Erik Kaashoek
·
#8720
·
|
Re: On Line, Secure, Transactions
The technique I use is a bit different. The credit card offered by my bank has a special function, that allows to generate a one-use-only credit card number, meaning that after that number has been
By
Alberto I2PHD
·
#8719
·
|
Measuring impedance at the bottom end of a ladder-line-center-fed wire dipole
How would you do it? I'm thinking that first, I'd need to construct an adapter for the VNA - sma connector, short length of coax, with clips on the center conductor and shield to clip to the two sides
By
KI7MWA
·
#8718
·
|
Re: F303 and 4" LCD for next generation NanoVNA
#circuit
#flash_size
#improvement
#enclosure
#battery
Herb, Thanks for the information.? Obviously, I am new here, and do not own a unit yet.? I have a N2PK VNA, that has now started to act up.? It is pretty much a laboratory piece of equipment,
By
GmailK4KV <glenk4kv@...>
·
#8717
·
|
Re: F303 and 4" LCD for next generation NanoVNA
#circuit
#flash_size
#improvement
#enclosure
#battery
On Sat, Dec 28, 2019 at 03:55 AM, GmailK4KV wrote: I do this kind of stuff too, and get NO help ;-) being a "one-man" show. I have to do the hardware AND software.
By
hwalker
·
#8716
·
|
Re: F303 and 4" LCD for next generation NanoVNA
#circuit
#flash_size
#improvement
#enclosure
#battery
On Fri, Dec 27, 2019 at 11:44 PM, <hugen@...> wrote: "...I will print the NanoVNA-H label and the hardware version number on the PCB I sell, and there will be a QR code next to the screen of
By
hwalker
·
#8715
·
|
Re: F303 and 4" LCD for next generation NanoVNA
#circuit
#flash_size
#improvement
#enclosure
#battery
Oh, I forgot to mention, thanks very much to the developers for all their hard work.? I do this kind of stuff too, and get NO help ;-) being a "one-man" show.? I have to do the hardware AND
By
GmailK4KV <glenk4kv@...>
·
#8714
·
|
Re: F303 and 4" LCD for next generation NanoVNA
#circuit
#flash_size
#improvement
#enclosure
#battery
I have used the high performance ARM32 chip on the Teensy 3.2. 120Mhz processor, huge memory, big pin count.? I run a 3.6" color touch screen on my projects.? It would handle this stuff with ease.
By
glenk4kv@...
·
#8713
·
|
Re: On Line, Secure, Transactions
Some things to consider about online purchases: 1. Your special debit account presumably still links back to your SSN. Remember, you had to give your SSN when opening that account, so there is a link.
By
Dana Whitlow
·
#8712
·
|
Re: F303 and 4" LCD for next generation NanoVNA
#circuit
#flash_size
#improvement
#enclosure
#battery
Sorry, it's hard for me to judge because there are many clones now. If the version you buy works well, you don't have to worry too much. Thanks to the good design of nanovna, the manufacturer can
By
Hugen
·
#8711
·
|
Re: New NanoVNA-H just received
Thank you for your support. Since some European countries charge high tariffs on DHL, we provide postal express. If you buy from Maggie through Alibaba, NanoVNA-H Rev3.4 will be shipped now. If you
By
Hugen
·
#8710
·
|
Re: Brief NanoVNA-H vs NanoVNA_F comparison
#nanovna-f
Thanks to the work of AA6KL£¬the 4-inch version of NanoVNA-H is coming soon. Like NanoVNA-H Rev3.4, it can work well up to 1.5GHz. /g/nanovna-users/message/8708 hugen
By
Hugen
·
#8709
·
|
Re: F303 and 4" LCD for next generation NanoVNA
#circuit
#flash_size
#improvement
#enclosure
#battery
Thanks to the work of AA6KL, almost all the functions now work well. Due to the use of a Cortex M4 MCU and a 4-inch LCD screen, it is temporarily called NanoVNA-H 4, but this is not the
By
Hugen
·
#8708
·
|
On Line, Secure, Transactions
Tell the bank that that is to be a /debit card account/ and that it is/not to be linked to your other accounts/. That is quite easily done. your "real" accounts. Thereafter use that account's card for
By
John Nightingale
·
#8707
·
|
Re: New NanoVNA-H just received
I didn't mind using the credit card. It's pretty protected. And I've seen unbranded clones going for $60 on Ebay. You can get it from Hugen for $50 via slow boat from China. Still need to use a credit
By
BruceN
·
#8706
·
|
Re: New NanoVNA-H just received
Herb, thank you very much for the link info! Roy WA0YMH
By
Roy Appleton
·
#8705
·
|
Re: New NanoVNA-H just received
=================================================== Roy, In case you missed it reference message #8700" " ... hugen's official store is:
By
hwalker
·
#8704
·
|
Re: New NanoVNA-H just received
So is the 3.4 version currently available the order and what is the link to Alibaba? Roy WA0YMH
By
Roy Appleton
·
#8703
·
|