Hi Sam,
Not particularly surprising as technology has caught up and you can get a
two port VNA for $50. Chinese knockoff of a European device with an
absolutely ghastly user manual. But it shows no future for something
manufactured with parts and in a manner that requires a $500 price to
market at retail.
I'm not sure what the component or manufacturing breakthrough was, but it
will spread around, and the NanoVNA and stuff like it will doom the MFJ
259/269 series as well, and hopefully spells the doom of SWR as the only
concept considered by the mob in antenna design and tuning. Seeing both R
and X graphed all the time, with X going below the line, and everyone
looking at the same kind of dual display will advance the range and
accuracy of conversations about antennas. Text me a screen shot of your R &
X curves. Maybe we can bury SWR as the preeminent only thing thought and
talked about with 2 port VNA's that cost less than a family night out at a
restaurant
The NanoVNA actually is a two port VNA. Powered by L-Ion battery recharged
off USB port. Just terrible labeling and ghastly manual. Every human
factors aspect needs a lot of work.
I have one of those kinds of units, a MiniVNAPro, that also has bluetooth
connectivity and rechargeable internal Lithium battery. You don't need a
cord to it from a computer while it is testing. That's mandatory with some
of the stuff I'm doing. Progress keeps moving on.
73, Guy K2AV
On Fri, Oct 25, 2019 at 2:16 PM Sam Josuweit wrote:
> I was just looking at Array Solutions web site to check on the price of an
> AIM 4300 and discovered the entire line of AIM analyzers has been
> discontinued. This is unfortunate as they are an awesome tool. Can anyone
> recommend a similar analyzer?
>
>
>
> Sam (N3XZ)
>
>
>
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