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So TaobabFOCUS is a procurement agent, and actually adds significant cost to the taobao base price. Couldn't Hugen be persuaded to setup shop on Aliexpress or Ebay?

This is what I've found regarding TaobaoFOCUS Site: https://tbfocus.com/ At least is uses https... AND they accept PayPal (I wonder of PayPal's refund policy would apply?) They claim not to

The site & shop Hans was referring to is https://shop.tbfocus.com/item.php?id=588815021483#4190873907712

Hans - what site would that be? No URL supplied in your posting. Found it - https://tbfocus.com/ At least is uses https...

I found this as a site that helps you order from taobao in english. At least it could find Hugen's Nanovna item w/o any problems. Are there any serious gotchas in using this site?

Jul 05, 2019 1. nanoVNA_800 firmware addresses 300 and 600MHz peaks because si5351 is working at the limit. Jun 11, 2019 1. Fixed the problem that data retrieved by shell command (PC software) was

This is a very bad or even wrong clone and may not get the right measurement data.

hi alan no sweeps showing calibrated as per instructions in the manual and cal details on left side of screen .nothing showing in smith when test with S L and through i am using ch0 this is the same

here is the image

This is the user manual https://drive.google.com/drive/folders/1-JViWLBOIzaHTdwdONX2RP8S4EgWxoND

Now there is a worse black clone. Can you upload an image?

I might add, just to be sure, what you are calling the TX port, is the CH0 port. For a one port or antenna measurement, the antenna under test should be connected to CH0, not

When you first received the unit, the factory cal should be in memory storage ZERO. You should see a sweep say on the Smith chart from 50 kHz-900 MHz. Did you see this? If the unit is showing NO

I found the problem. The VNA does have a battery. The USB cable was bad. Bought a new cable locally and all seems well now. Thanks Glenn --

I received my NanoVNA last week, ordered from sqcase, a 'seller' here in the UK. I think they are a Chinese supplier with stock in the UK but it meant I got it quickly and it came with a battery. All

got my nanovna today and after calibrating and doing all the settings the calibration is showing but i cannot get it to show any traces or readings in swr mode with 100 ohm load or when connected to

Make sure it actually has a battery. When II bought mine from Bangoods it originally claimed to be shipped with a battery and fully calibrated, neither of which were true. When I went to write my

There should be a single flashing blue or red LED to indicate the battery is charging when the unit is OFF or ON. Once the battery is charged, the LED stays ON. Does the unit turn on and run off the

My nanovna finally arrived today. When I try and charge it, I get no indication that it is charging. Does one of the LEDs indicate that it is charging? I have tried two different USB supplies to

There are plenty of RF absorbing materials made for that very purpose. A look on Digikey finds ferrite