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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

I always do this. Never had any problem, but at least I checked to make sure. Zack W9SZ [email protected]> wrote:

Inadvertently I had done just that, because in using the VNA for the first time for real, tuning the ATU for 40m on the G5RV antenna, I was getting unbelievably perfect results because the MFJ969 ATU

After completing a cal, it's always a good practice to go back and verify that your OSL actually displays as an OSL. Dave - W?LEV [email protected]> wrote:

With the maximum SWR ± 2.5 : 1, you must have a lot of loss in the system. Likely due to that crazy 9:1 transformer. You have a NANOVNA, so measure the through loss of that transformer. I'd suggest

*? ?? RAIN? GUTTER? ANTENNA?? on upper HF bands* * * *I've been experimenting with a variety of HF antennas here at my new QTH at Crosslands Retirement Community in Kennett Square, PA. * *I

Stan, thank-you for your input. As it happens, from the timing of your post I was actually at the same time watching the W2AEW youtube video on calibration where he demonstrated the Correction switch

Oh, and the 'correction' option in the menu is in -newer- nanovna firmware, so if your friends doesn't have it, he doesn't have the latest firmware. So yes, this was a valid question to ask, since the

Gareth, This option is simply a switch that turns the calibration on and off. When it is checked, it is on. But the main status is at the left side of the display, along the center-left edge. If there

OK, thanks for that reference, but how do I know whether or not the correction is being applied? Is there a status flag? ie, after doing a calibration, do I leave the Correction option alone or press

Basically it toggles your calibration off and uses the base cal in the unit. /g/nanovna-users/topic/53015012?20,2,0,0

Larry, what a wonderful message. I don't think this is the place to chat so I'll send you an email. Brian

Off Topic... Brian, I have fond memories of your Antenna modeling program - from back in the day.. I would load parameters and let the computer run all night. I didn't have a co-processor nor could

I've only just found and joined this group and am using a donated VNA for the first time. So I apologise if I am repeating a topic that is hidden deep within the history of this group. In the CAL menu