The NanoVNA DOES have a setting to display SWR. It just generates its own
signal to measure it; it doesn't connect to a transmitter. The same with
the RigExpert AA-600. It generates its own signal to display the SWR over
the frequency range you choose. Last year I used the NanoVNA to measure the
SWR of a small magnetic loop antenna wound on a ferrite bar and used in the
400 to 600 kHz range. And I've used it in SWR mode to tune loop Yagis for
902 and 1296 MHz.
Zack W9SZ
On Wed, Jul 20, 2022 at 12:50 PM W0LEV <davearea51a@...> wrote:
Any amateur radio operator using a NANOVNA (or even the TinySA) should
absolutely know it's a low-power device and not fit for inline or
terminating installation!!!!!!! It ain't no Bird Wattmeter!!!!!!! If one
is not familiar with these sorts of test equipment, read the "welcome mat"
or "quick start" guide that is included in the box with all of them I've
bought (too many) well before even charging the unit(s)!!
Please.......please.........where did common sense go???? I know. Common
sense is not common and it is no longer taught.
Dave - W?LEV
On Wed, Jul 20, 2022 at 12:18 PM DougVL <K8RFTradio@...> wrote:
On Thu, Jul 14, 2022 at 07:56 PM, Ken wrote:
Be careful about suggesting using nanoVNA as an SWR Meter. Most SWR
Meters are
used between a transmitter and an antenna to show the SWR in the
transmission
line at an operating frequency. The nanoVNA is connected to a
transmission
line and antenna to show what the SWR will be when fed from a
transmitter at
various frequencies. It would lead to disaster if someone connected a
nanoVNA
between a transmitter and antenna.
That's another good reason or feature of the Nano's price! If you blow
it
up (by transmitting into it), it probably won't break the bank. BUT if
the
transmitter blows up too, well then you'll wish you looked (and learned)
before you jumped.
--
Doug, K8RFT
--
*Dave - W?LEV*
*Just Let Darwin Work*
--
Dave - W?LEV
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