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Here's my solution, I still have to glue the foam down. These are small flight cases3 for ?24.00 on eBay. However, I wish I had seen your solution first as it is a better and more versatile idea. If

Of course depending on weather conditions and type of antenna, an antenna can quickly rebuild a static charge after you remove the ground. 73 -Jim NU0C "Michael" <michael@...> wrote:

I just recently read on this group that the max size of SD card is 32 GB so that may be your issue. 73, Cliff, AE5ZA

I recently got a AURSINC NanoVNA-H with a micro SD card slot and every time I try to save a screen shot it says "FAIL TO WRITE". I am using a SanDisk 64GB microSD card and I can't seem to figure out

The youtube video is a good one. but I'm really looking for something that has less effect on high frequencies too and can be installed permanently on the nanovna board. I think that TVS diode

Yep. "Not recommended for new designs" generally means future production and availability is questionable, not that there is any problem with the part's specs or performance.

Hi , if you do the calibration without the assistance , you must do a sweep before "click" on the device . Maurizio IZ1MDJ

Yes, grounding the antenna to discharge static before making measurements is essential, but a protection network will provide insurance against accidents and errors that can easily occur to the most

Just a thought, you might want to try the OneofEleven PC program as an alternative to VNASaver. Using that same program, you can also directly install firmware upgrades to the device.

Excellent.. I actually have another use for them at work. Good to know.

Hi Jim/Dave, I too have used these mini-circuits limiters, mostly the ones in a higher range 20/30MHz to 3000 and 6000MHz on commercial SA's observing multiple 6MHz wide QAM carrier systems with 10 to

That looks like the ticket. One thing to check - if you put two signals in (with the sum of signals being < limiting threshold) is there any IMD. For NanoVNA, which is single frequency at a time, this

I will try it again ? thank you for the support, I thought i was doing something wrong

Seems like the cost of the protection device plus shipping pretty much equals the cost of the NanoVNA and more than the cost of a TinySA.? Max

Clear your calibration on the device, measure your standards while the device is in an uncalibrated state. Essentially check if your standards and device are functioning properly.

The device from MiniCircuits I sent out about 15-minutes ago is designed for the requested purpose. I bought one about 3 months ago. It is not a discounted product. Again, Minicircuits VLM-33W-2W-S+

I have always assumed that the "Not recommended for new designs" warning implied only that the part was old and planned for obsolescence by the manufacturer. That is important information if you are

Device from MiniCircuits: VLM-33W-2W-S+ URL: https://www.minicircuits.com/ Rated from 0.200 through 3000 MHz in a 50-ohm system. It's marketed as a spectrum analyzer protector. Dave - W?LEV wrote:

This part is still stocked at Mouser, Digikey, RS, Farnell, etc. Many thousands available. Not recommended for new (high volume) designs, but upgrading your nanoVNA is a no-brainer to me. Op 4-2-2022

So, I have noticed the device will connect in either of two ways. This can be seen in windows device manager. Depending upon whether the device is powered up in DFU mode, or just powered up normally