"Owen Duffy" wrote in message
...
"Sal" wrote in :


...

Thanks, Owen,

I understand the world of complex numbers and vector impedance
well enough. My concern is whether I can make the thing work with
what appeared to me to be a dearth of hookup instructions.

How did you know what cable(s) to order? Are you operating with
a software COM port or do/does your computer(s) come with a
hardware COM port?
The AIMuhf connects to the computer by USB, just a mini USB IIRC, and I
think they supplied a cable.

...
As I told Ian, I'll try the software and see if it radiates warmth.
It needn't be hot ... just not ice cold. :-|

The software is a very important element.

In my experience, the software with these kinds of things is
amateurish... but usable.

I also have a TecTec VNA, but I avoid using it if I have something else
that will do the job, and the AIMuhf is usually better if a one port VNA
is up to the task.

You will see plots from both of those in the article
http://www.vk1od.net/antenna/7MDipole/7MDipole02.htm .

There are other ham grade VNAs, I haven't researched them deeply, some
may be kits or homebrew that leave you challenged to find some of the
parts.

Owen

Thank you, Owen. That web page was all very instructive.

"Sal"