开云体育

Thank you Stan ________________________________ Sent: Wednesday, March 5, 2025 5:18 PM To: [email protected] <[email protected]> Subject: Re: [nanovna-users] Apologies if flogging a dead

Thank You ________________________________ Sent: Wednesday, March 5, 2025 4:08 PM To: [email protected] <[email protected]> Subject: Re: [nanovna-users] Apologies if flogging a dead horse!

Did you enter the Velocity Factor (VF) of the coax the same in both units ?

OSL - Open, Short and Load, the normal calibration of the system for a DUT (Device Under Test) [email protected]> wrote:

Clifton, the 1.2.40 firmware version is very recent, so you don't need to update. The correction item should be there in the calibration menu, but you don't need to worry about it unless for some

O = Open termination S = Short circuit termination L = Non-reactive 50-ohm load termination All applied to the source port. You may also see "T" in an OSLT designation. T = Through with the supplied

What does OSL stand for and where or how to find it on the VNA H4 or F V2 ________________________________ Sent: Wednesday, March 5, 2025 2:49 PM To: [email protected] <[email protected]>

Once you complete your chosen cal., go back and check that the OSL actually shows as an OSL should. If so, that will assure your cal has taken hold. Dave - W?LEV

Please excuse my 80yr old brain, I know to include the rest of the info. but didn't type it. I have a NanoVNA H4 with FW version 1.2.40. My question is; Is 1.2.40 the latest FW or is there a newer

You may want to also post this question on the ham-antennas forum. DaveD KC0WJN [email protected]> wrote:

Ok, stealty antennas. How about my cat-net-tenna? Got a 6 meter wide balcony (spanned with a cat net) on the 6th floor of a appartment building. The surface of te facade is all metal. Using a 64:1

Ha! Loved Dave's (W0LEV) fire alarm story! :) I did the exact same thing a couple years ago in my 3rd floor apartment back in Texas. I was using my SlinkTenna dipole (Google it) and had a blast for

Twice as good as bed spring antennas thrown on the roof.. EVEN better if your house is on wheels and you can turn it with a pickup truck.. Follow me for more REAL Ham Radio Solutions, Insight and

In college, while living in the "half underground" lower level of a new brick 12-plex, I used the downspout(s) as a random vertical antenna. My counterpoise was the AC wiring in the building and an

I have 2 VNAs . H4 and New F v2. Using the H4 to measure coax length I get a reading that's spot on. But when I use the F V2 the reading is like 60% or more / greater than it should be. H4 at marker

Mine sucks [email protected]> wrote:

In this case, Dave, it's highly likely the gutter system will have much more loss than the transformer. A gutter can be a reasonable antenna if all of the joints have good RF connections-but that most

Which device - there are quite a few?

Can someone please tell me the latest FW version and where to download it? Thank you in advance Clyde KC7BJE

I also live in an apartment complex. One of my antennas is a rain gutter, about 50 ft horizontal and it includes the downspouts. Inside my apartment is a 10-meter-long counterpoise along the wall. I