开云体育

Some WWW resources: http://ormpoa.altervista.org/nVhelp.htm#DSP

Thanks Alan, Gary and Larry, This document is very useful indeed, good writeup. It might be useful to include a table of RLB vs dB, VSWR and R+jX. The range of the instrument one expects should be

Hi Sergei I think you'd have a clearer idea if you used the PC software as this can show you firmware info*. No version number but there is firmware build time & date, so I think you could at least

Based on May 05, 2019 release notes, I think that nanoVNA_900_AA_20190505.dfu is required >>first<<, to clear user data. Others do not..

Thanks for answers. I think need to bit clarify the issue which is: post-calibration I do not see Smith diagram reacts to open/short/load as needed ans as seen on multiple videos. I did use BOOT pins

Serge, Have a look a some of my earlier posts with photos of how I soldered a small push switch from a cellphone to the BOOT solder pads on my unit. That way, I can place the unit into flash mode by

The only way this software would work is if it supports the very same serial interface command set of the nanoVNA. Look in the files section for the command ref doc

2 traces is fine. However, to get 4 traces will require a firmware change. The CAL process for 2 traces is no different than 4 traces. Of course you have no S21 measurement, but you may still follow

Hello. Can someone test if nanovna will work with https://www.metropwr.com/igvna-f4clb/ ? I use it with my old VNA, wonder if I could use with new device. Thanks, Mike

Hi. I got mine from ALI with 2 traces only with no manual and seems the only option to get 4 and then follow correct calbration procedure is to flash new decent firmware. While I see discussion

Mixers are SA612A: https://www.nxp.com/docs/en/data-sheet/SA612A.pdf Some 600MHz energy may be intermodulation aliasing between 300MHz fundamental and 900MHz third harmonic, not just second harmonic

There are no mixers within the Si5351A. Whatever generated is done by fractional synthesis from the crystal clocks. There is another slightly different frequenc output that drive the mixer detectors.

Mine took 3 weeks.?Sent from my Samsung Galaxy smartphone.

Hi Peter - Yes, indirectly, by changing amplitude of signals into the mixer (dominant distortion contributor).

I ordered mine the last week of June. 5 days later, I contacted the seller and asked when they were shipping as I heard nothing at that point. I got a reply back that they had just shipped it. A few

How long did it take Guangyi0016 to ship your order. I have ordered one from them and still waiting for it to be shipped (the supplier is processing your order is the msg on AliExpress).

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the [email protected] group. *File:* NanoVNA Calibration Considerations and

I've only been using it for a week or so, but no problems on my Win 10 x64 machine (Win ver.1809). Have fun!

I just created a new Wiki entry on how to calibrate the nanoVNA's touchscreen. /g/nanovna-users/wiki/Touch-Screen-Calibration-Procedure You'll need to connect it to something that can

This document was created by Larry Goga. He extended and added excellent material that began as Message# 233. The document primary objective is to serve as a reference for new comers to the