Re: Not available at Ali Express / Zeenko
But it will do business with PayPal? Lester B Veenstra K1YCM M?YCM W8YCM 6Y6Y W8YCM/6Y 6Y8LV (Reformed USNSG CTM1) lester@... 452 Stable Ln Keyser WV 26726 USA GPS: 39.336826 N 78.982287 W
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Lester Veenstra
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#33882
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Re: Not available at Ali Express / Zeenko
My credit card issued on my credit union will not do business with AliExpress. Wonder why? Three guesses and the first two don't count...... Dave - W?LEV wrote: -- Dave - W?LEV
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W0LEV
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#33881
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Re: How do you measure a car antenna?
If you are describing a problem with AM reception, it could be EMI from all of the inverters, etc. in the car, interfering with reception, rather than an antenna issue. I had heard that car makers
By
Donald S Brant Jr
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#33880
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Re: Not available at Ali Express / Zeenko
Ali Express is on my s**t list too, after one of their vendors shipped the wrong product (Hantek o'scope) and, after shipping it back on my dime and two months of wrangling to get the right item they
By
Donald S Brant Jr
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#33879
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Re: Not available at Ali Express / Zeenko
That's a great thought, unfortunately, I haven't had luck with two disputes using PayPal. In my case it seemed to come down to a "my word versus theirs thing. The problem was difficult to prove using
By
Twenty4pack
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#33878
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Re: How do you measure a car antenna?
It is generally believed that the move to eliminate? AM radios in? cars is political not technical .Most conservative programs are on the AM radio band.
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KENT BRITAIN
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#33877
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Re: How do you measure a car antenna?
The 4-Runner was a standard internal combustion engine. The Ford Lightning is an EV. With the EV's comes a massive amount of RFI. It's so bad that manufacturers are eliminating AM radio from their
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W0LEV
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#33876
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Re: How do you measure a car antenna?
Hi, Larry, Note that measurements with a VNA will examine the impedance presented by the antenna as a source but not its efficiency at receiving signals. If you compare two antennas, you might see a
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Maynard Wright, P. E., W6PAP
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#33875
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Re: Not available at Ali Express / Zeenko
Or use PayPal which offers a better level of protection than dealing directly with AliExpress. Lester B Veenstra K1YCM M?YCM W8YCM 6Y6Y W8YCM/6Y 6Y8LV (Reformed USNSG CTM1) lester@... 452
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Lester Veenstra
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#33874
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Re: Not available at Ali Express / Zeenko
I had the same problem with Aliexpress not taking my card. I think they view it as stolen or bogus and you need to call them and clear it up (Ha, Ha). I fixed the problem by opening a new account and
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Gary W9TD
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#33873
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Re: How do you measure a car antenna?
Here's a document of vehicle rear window antenna concept: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6239758
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Greg Strickland
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#33872
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Re: How do you measure a car antenna?
Can you take a photo of the car antenna connection that's in focus? Zack W9SZ llaassllaaass@...> wrote:
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Zack Widup
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#33871
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Re: How do you measure a car antenna?
Larry- Perhaps someone here who knows the theory could briefly cover impact of antenna impedance when the antenna is used for receiving. I am posting because to me it seems the essence of your
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Greg Strickland
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#33870
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Re: Not available at Ali Express / Zeenko
I've had good results with Banggood. But you are always taking a risk ordering from any of these companies. They have zero customers service. Banggood seems to be the least horrible!
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Michael <m005kennedy@...>
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#33869
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How do you measure a car antenna?
Enclosed is the photo of a car antenna's mounting. Note it is a single pin. Also enclosed is a picture of my Baofeng's antenna post. Note that the car antenna is a single post/pin. The Baofeng's
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Lawrance A. Schneider
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#33868
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Re: VNA and antenna matching : calculating reactance needed to match
Thank you for all the replies. The first six pages of https://my.ece.msstate.edu/faculty/donohoe/ece4333notes5.pdf seem to address my question.
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Andrew (G1RVD G0Z)
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#33866
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Re: NanoVNA-App SWR graph does not match H4 graph
Thank you, Stan. That makes perfect sense. I was not aware that calibration sources could be different. I will check that option. Thanks again, Bob, KN4HH
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Bob Watson
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#33865
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Re: NanoVNA-App SWR graph does not match H4 graph
If the displays are different while doing a measurement, it is very likely a calibration issue. Nanovna-app allows you to select the vna calibration or the app calibration. Make sure that is set to
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Stan Dye
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#33864
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Re: Trouble calibrating NanoVna Classic after upgrade to 1.2.20
Flash old firmware and see if you get the same problem.
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Dragan Milivojevic
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#33863
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Trouble calibrating NanoVna Classic after upgrade to 1.2.20
I'm hoping someone can help me with my inability to calibrate my NanoVna classic after upgrading sucessfully to 1.2.20h.dfu. While attempting to debug this problem, I did the following: 1) Ran a
By
kumuzu1
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#33862
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