开云体育

USB CDC can go at 1MByte a second without any problem really, though using libUSB is good too. So at 1MByte/sec USB CDC throughput you can have 38000 points a second assuming 26 bytes per point (6

Hello Herb, this 6GHz VNA is a brand new VNA independently designed by Jan. USB needs a faster speed to ensure that 1000 scan points can be transmitted per second. Jan uses a more efficient libusb

I will contact Keysight and find out when we can see a fix. Thanks for the alert.

Unfortunately, the Keysight website is broken. Cannot download either 32- or 64-bit software...

Here you go... Keysight has taken the paper calculator and expanded it quite a bit! Now you can do all you want and more to answer your query. Have FUN. Alan

W5SWL is a good person to buy adapters from. Prices are reasonable and he has just about everything. eBay store or https://www.w5swl.com/. 73 -Jim NU0C "Jim Lux" <jimlux@...> wrote:

Hi Ray, The simple answer to your query... It shows up in the uncertainty. There is an excellent treatment of the calculations provided by hp that was presented at one of their seminars... years

Hi, new member here. I'm a reasonably experienced Microwave engineer and will add a NanoVNA to my bench soon. In the process of reading about this VNA I've become interested in better understanding

Thanks everybody for the tips. Rainer

Hey Rainer, it's what I would use.. Says package of two in add, I noticed one guy reported he only received one. Nobody else reported that however. Probably an error on the marketers

Make sure you select the correct device, that web link could be for any of 6 different devices. I'd probably get the SMA-MF(50khz-8ghz) Perhaps somebody else has a better suggestion. Jerry, KE7ER

I have yet to need a DC block. If I did, would likely just put down something like a $0.01 0805 N0G 0.01uF cap on the device I was inspecting. Or cut an SMA cable in half, add an SMA jack at the end

Thanks everybody. I guess this is what I need https://tinyurl.com/DC-block-2W Right ? Rainer

Jerry, Simple solution if worried about application of DC voltages to the ports, is to use an inline SMA-M to SMA-F DC Block available from Amazon for anywhere from $7-10 US for a pack of two on up to

I agree with Jerry. Use an appropriate capacitor for RF such as ceramic or mica, not electrolytic or paper. Carol

Interesting. Thanks for bring this up! Looking at the schematic on page 10 of the pdf pointed to by the reddit post, I'd guess the first resistor to burn due to DC injected into the TX SMA port would

Thanks for advice, just like Jerry suggested, I could for instance use alligator clips. I should have been more precise and say that the NanoVNA came with a short cable with SMA on both ends and I

The following message was previously posted to the user group for the NanoVNA -F. It is being reposted here as a courtesy to the owners of any of the other versions of the NanoVNA.

I made up a couple cables about 2 feet long with RG-316. One has an SMA on one end and a BNC on the other end. Another has SMA's on both ends. Greatly reduced chance of damaging the SMA on the NanoVNA

clip leads from a SMA connector to the coax (either bare, or with PL-259 attached.. I highly recommend getting an adapter or pig tail. I have purchased adapters and jumper cables from Amazon and it