I don't think V2-Plus is such a good name. Also, V2-N may be N now, but at some point there will be a newer N. I think you could probably think of a much better name. You could have a numerical name that gives the most important specs, and a model name that has a kind of fun or endearing quality - which is unique. Try to think of some cultural name - maybe a character for a TV soap opera or manga or mythology you all like (if there is such a thing)
![Huh? ???](https://www.eevblog.com/forum/Smileys/default/huh.gif)
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bla bla bla.. Or at least thats what I think.
I totally know what you mean about a metal case sometimes causing problems. I am dealing with that right now with a LNA that I am trying to put into a nicer metal box. Its hard to get it right, where the box really makes a big improvement instead of making issues like unwanted USB-originating noise worse.. Because so many cases now have an anodized outer metal shell, (which doesnt conduct electricity!) they are really crap. The ones that look semi decent are more often than not crap. Here is what I am trying to do. Put a picece of copper - not coppper tape, on the inside to be the actual grounded thing. A c shaped piece of copper that connects to everything as if it was the case. It doesnt have to enclose it completely, the outer case is for the looks. And it conducts inside. Just not on its surface. The [iece of copper flashing is simply to create a common ground point thats very low impedance, between the two connectors (and the USB) thats not the PCB.
That works with an LNA.
I need every bit of help I can get with my local RF noise.
Gradually the noise where I live has just been getting worse and worse. Some of it is not coming from here so its very hard to get rid of. I need to get a small radio and literally hunt its source down.
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Try using a piece of metal to see if that makes the metal case work acceptably well. The two horns they have on that other case are nice to protect the connectors. They are likely trying to sell below their cost.
I have now prototypes of the 4 inch version with 400 points/s sweep rate. The noise floor stays at around -80dB up to 1.5GHz even with the faster sweep. The DSP code can go up to 500 points/s but the UI fresh almost doesn't keep up when the 4 inch display is used, so it'll have to be 400 points/s.
V2-N will be renamed to V2 Plus to avoid confusion with another NanoVNA variant. I think it'll be available in a week or two. The improvements are 200 points/s sweep (compared to 100 points/s for the current V2) and a bit lower noise floor.
The 3D enclosure and battery option will also be available in a week or two, maybe a bit earlier than the V2 Plus.