The only part of the Smith Chart that is purely resistive is the center
horizontal line. Upward is inductive and downward from that line is
capacitive. That's the advantage of the Smith Chart. Since the definition
of resonance is that +j = -j (the two cancel) only the central horizontal
line is purely resistive and shows resonance.
Dave - W?LEV
toggle quoted message
Show quoted text
On Mon, Jan 20, 2020 at 11:22 PM Glen K4KV <glenk4kv@...> wrote:
FYI
Ordered via PayPal on Alibaba on 11th, arrived a little bit ago.
First impressions are very good. Very nice box.
Did a CAL using my own sma standards. Then checked 'known' good antennas.
Did not read the instructions, tried to see if it all was intuitive or not.
Was able to scan whatever I wanted to scan, all readings pretty much
what I expected.
Display crisp and very easy to read (hooray for 4"!)
Scanned some filters up to 310Mhz and saw no noise or other difficulties.
I have stuff to learn, like why the Smith reading is R and either
capacitive values or inductive values, not
R +xj (perhaps I needed polar selected). Have not figured out how to
turn most of it off. I want R + xj plus either
return loss or swr on the screen only for most of my needs.
All in all super bargain!
Thanks to all who have contributed!!!
73
Glen K4KV
--
*Dave - W?LEV*
*Just Let Darwin Work*
*Just Think*
