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Re: Not available at Ali Express / Zeenko
No, I totally disagree with your statement. Based on personal experience, every time I had a credit card compromised it was shortly after either some eBay order or some PayPal payment processing. Last
By Julio VE3FH · #33988 ·
S21 offset
I have a NanoVNA-H: HW version 3.4 with Dislord firmware 1.2.20. I have run the SOLT calibration. When I leave CH0 and CH1 connected together and do an S21 Logmag plot, there is almost -3dB offset
By K3PTO · #33987 ·
Re: NanoVNA for 120 ohm Twin wire Balanced lines
Some users have installed bluetooth adapters, which can give the same isolation result. These use the serial port available inside the nanovna. You could also use a pair of opto-isolators on the
By Stan Dye · #33986 ·
Re: Not available at Ali Express / Zeenko
Anything that uses PayPal or other 3rd party reputable card processing is safe. You just have to know if a website is storing the data (uncommon these days) or redirecting to a card processor.
By Dragan Milivojevic · #33985 ·
Re: Not available at Ali Express / Zeenko
They don't and there is no such thing as real free shipping, it was just included in the price. Shipping is much cheaper from China or the rest of the world. It has to do with agreements between
By Dragan Milivojevic · #33984 ·
Re: Not available at Ali Express / Zeenko
This is allowed because China is considered a "developing" counry. It is the second largest economy but the GDP per person is lower than developed countries Mike N2MS Mike N2MS
By Mike N2MS · #33979 ·
Re: Not available at Ali Express / Zeenko
The Chinese Government subsidizes some of there Postal System to a greater extent than the US Gov't does for the USPS. I have ordered $1.24 in parts from China and got free shipping. Not what I would
By Dick · #33978 ·
Re: Not available at Ali Express / Zeenko
That's also why I stopped ordering from the US. At least RandL is willing to ship by mail! Many, if not most US companies, refuse to ship by mail, and only give a choice between DHL, UPS and FedEx,
By Manfred Mornhinweg · #33977 ·
Re: Not available at Ali Express / Zeenko
Basic understanding of how card processing works / how prevalent card skimming is. How do you imagine that someone selling something on Ebay gains access to your credit card details?
By Dragan Milivojevic · #33976 ·
Re: NanoVNA for 120 ohm Twin wire Balanced lines
**Feature creep alert** Could sensitive measurements be easier if Nano VNA had an optical transmitter and companion receiver, or an internal memory to record "screen shot" or measurements on a timer?
By Greg Strickland · #33975 ·
Re: Not available at Ali Express / Zeenko
supplier. If I I want to order from Randl, here is what they'll charge me for shipping: . . . If you can use your G4OJW address get it from Mirfield:
By David J Taylor · #33974 ·
Re: Not available at Ali Express / Zeenko
You have a million times greater chance of your card details getting stolen when paying for gas than the same happening when using PayPal. <ve3fh@...> wrote:
By Dragan Milivojevic · #33972 ·
Re: Not available at Ali Express / Zeenko
I share your concerns. I bought my TinySA from the SeeSii store in ebay.ca, it?and arrived in six days and shipping was USD $2.99, they do carry the NanoVNA H4 and I'll probably buy a NanoVNA from
By Julio VE3FH · #33971 ·
Re: How do you measure a car antenna?
It used to be that all we had to worry about was light pollution, just try to find a place where you can see the Milky Way. As more and more RF/wireless devices and other electronic devices that
By Geoff Peters - AB6BT · #33970 ·
Re: How do you measure a car antenna?
Did the Commission or its representative look to see if the device is causing harmful interference? Probably not... Because if they had, they would have found that the device IS causing harmful
By Geoff Peters - AB6BT · #33968 ·
Re: How do you measure a car antenna?
"The operator of the exempted device shall be required to stop operating the device upon a finding by the Commission or its representative that the device is causing harmful interference. Operation
By Geoff Peters - AB6BT · #33965 ·
Re: How do you measure a car antenna?
Here's the exempted devices paragraph from Title 47, C.F.R. Part 15 ============================================================ ¡ì 15.103 Exempted devices. Except as provided in paragraph (j)
By Frank Evans · #33964 ·
Re: How do you measure a car antenna?
Hmmmm... so you'll be 'testing' while you're applying the brakes???
By Mike C. · #33963 ·
Re: nano VNA-H will not connect via USB to control apps on Win10 - help please
1. Nanovna-H and Nanovna-H4 do not require a driver under Windows 10 to connect to Nanovna-app, etc. 2. So either there is some problem with your nanovna, the cable, or the computer. 3. I recommend
By Stan Dye · #33962 ·
Re: How do you measure a car antenna?
Also, the older tube type car radios used vibrators and a transformer to generate the necessary plate voltages for the tubes. Those vibrator circuits generated some noise. Zack W9SZ
By Zack Widup · #33961 ·