get a v2 (or one of its clones, cousins, brothers and sisters)
zeenko?? then an saa2n comes to mind
or any of those 3plus plus gig devices
all the "genuine" nano have a clock tha goes up to around 280 .. some 300 megs ... and all above is measured with "harmonics"
while the newer v2s (v2, v2plus, saa2n,v2plus4, litevna 62+64, vna6k ... just to name a few) have a clock that goes over 3 gig (some to 4.4 and some even over 6 ghz)
hmm you may ask why take that for "only 2m and 70cm"?? at first ... its nice to have a clock that goes higher and not to measure with overtones of the main clock (better results and more dynamic range)
next is ... maybe you once want to measure at 23 or 13 cm ... (say for atv or for? a sat dish?? .. whatever) ... and then you do not need to buy ANOTHER vna
better spend a bit more ... buy a GOOD unit (4 to 6 ghz is no luxury) ...
i recommend one with a 4 inch screen (those units with 2.8 are nice for the shirt pocket but you need reeading glasses for it)
a metal case ?? yes ... should be in a metal case
sma or n sockets??
hmm n socket is more robust ... so if you use it often ... n socket is ok
but you also can screw an sma to n socket adapter on a vna with sma sockets (used as port saver and use n cables then)
so ...
look for
a vna2 (clone cousin bla bla)
metal case .. with sockets to your needs ... sma is NOT made for several screw unscrew usages so either use n ... or sma to sma port saver (male femal adaptor)
4 inch screen
and 4 or 6 ghz max frequency
no that is not for 50 bucks ... grin
greetz sigi dg9bfc
Am 04.09.2022 um 17:05 schrieb Tish:
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Hello Everyone.
I'm planning to buy my first NanoVNA for antenna SWR measurements (2m/70cm). Where I live the only reasonable option is zeenko store.
Most of the time I'll be using PC software and my question is if it worth it to pay more for H4 v4.3 (~86USD) version over H v3.6 (~50USD). I know that H4 is better, but that difference in price seems a little steep.
Thanks, tcs.
