there were NEVER any v2plus4 clones.. so you will get a genuine one
(i would now maybe buy a lite vna that goes up to over 6ghz but is a similar design as the vna v2 or v2plus4)
the nanovna v2 has an "open source circuit!" ... and the v2plus4 is similar ... only difference is the balun (the plus 4 has a resistive bridge ass far as i know)
but the overall circuit is the same in all of the v2 so ... differences is the directional coupler
greetz sigi dg9bfc
Am 13.06.2022 um 16:16 schrieb Carsten F (OZ1FTG) via groups.io:
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Hello Goup
Old Ham here , but have never played with DIY antennas before , and have never had a HF Station.
I have just gotten my first HF Ham station (FT-991A) , as i have "some" room in the summerhouse garden for maybe a 20..25 meter wire.
Now i want to start playing with "Wire antennas" on 3..50MHz bands, more specifically an EHFW to begin with , as a Dipole layout does not really fit.
I have bought on Aliexpress: 1 x "Original NanoVNA V2 Plus4 4 inch 4GHz":
Expect it to arrive within a month or so.
Since it's Ali .. I hope i get a "Real Original" , not a "CN reduced Clone" .. Lets see.
Any URL to a Schematic of the above VNA ??
When i get it , i see 3 steps to begin with (Focus on antenna measurements) :
1: What firmware to load on the VNA (An URL would be nice)
2: What PC program to use if i want to "Pull out data" (An URL would be nice)
I would prefer Linux (Ubuntu/Mint) , but i have Win10 also if that enhances the experience for a beginner.
3: How to get started with antenna measurements - the tough part i guess .....
When i see a Smith Chart , I always think it's either a "Childs drawing" or a "Vortex from StarTreck".
I just got the Absolute_Beginner_Guide_NanoVNA_v1_6.pdf from the files section , and also some relevant smith chart info from there.
But a "Quick guide, if it exists" just to get started would be invaluable.
Ohh ... A Do & DON'T guide would be nice too :-)
I'd expect for starters , to just feed the Antenna from the VNA, when measuring with the VNA.
What is the most likely way that beginners kill their VNA ?
TIA
Carsten F
