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Re: Apologies if flogging a dead horse! CAL Correction?
Thank you Stan ________________________________ Sent: Wednesday, March 5, 2025 5:18 PM To: nanovna-users@groups.io <nanovna-users@groups.io> Subject: Re: [nanovna-users] Apologies if flogging a dead
By CLIFTON HEAD · #39645 ·
Re: Apologies if flogging a dead horse! CAL Correction?
Thank You ________________________________ Sent: Wednesday, March 5, 2025 4:08 PM To: nanovna-users@groups.io <nanovna-users@groups.io> Subject: Re: [nanovna-users] Apologies if flogging a dead horse!
By CLIFTON HEAD · #39644 ·
Re: NanoVNA F V2 not working correctly
Did you enter the Velocity Factor (VF) of the coax the same in both units ?
By Mark Foster · #39643 ·
Re: Apologies if flogging a dead horse! CAL Correction?
OSL - Open, Short and Load, the normal calibration of the system for a DUT (Device Under Test) outlook.com@groups.io> wrote:
By WyoHam · #39642 ·
Re: Apologies if flogging a dead horse! CAL Correction?
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
By Stan Dye · #39641 ·
Re: Apologies if flogging a dead horse! CAL Correction?
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
By W0LEV · #39640 ·
Re: Apologies if flogging a dead horse! CAL Correction?
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: nanovna-users@groups.io
By CLIFTON HEAD · #39639 ·
Re: Apologies if flogging a dead horse! CAL Correction?
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 -
By W0LEV · #39638 ·
Re: Apologies if flogging a dead horse! CAL Correction?
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
By Clyde Lambert · #39637 ·
Re: how good is a rain gutter antenna
You may want to also post this question on the ham-antennas forum. DaveD KC0WJN gmail.com@groups.io> wrote:
By Dave Daniel · #39636 ·
Re: how good is a rain gutter antenna
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
By Imre Biacsics · #39635 ·
Re: how good is a rain gutter antenna
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
By Stan - WB5UDI · #39634 ·
Re: how good is a rain gutter antenna
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
By Larry Macionski · #39633 ·
Re: how good is a rain gutter antenna
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
By Kirk Kleinschmidt, NT0Z · #39632 ·
NanoVNA F V2 not working correctly
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
By CLIFTON HEAD · #39631 ·
Re: how good is a rain gutter antenna
Mine sucks gmail.com@groups.io> wrote:
By John · #39630 ·
Re: how good is a rain gutter antenna
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
By Stan Dye · #39629 ·
Re: Apologies if flogging a dead horse! CAL Correction?
Which device - there are quite a few?
By Roger Need · #39628 ·
Re: Apologies if flogging a dead horse! CAL Correction?
Can someone please tell me the latest FW version and where to download it? Thank you in advance Clyde KC7BJE
By Clyde Lambert · #39627 ·
Re: how good is a rain gutter antenna
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
By Orrin Winton · #39626 ·