开云体育

Wow, just to avoid confusion, I read Robins comment to be a referrence to "Guy and Dolls the musical" and the inferrence that there are many more men than women in our great hobby is very true. How it

Hi, I suggest you to check your transformer with open and then closed secondary: in this two conditions S.W.R. must be very very high. In both cases all energy must return to the VNA. If not, the

Hi, an useful range of low S.W.R. in an antenna larger than the theory claims, indicates losses: it is not a good news! You made a transformer: check it on the right load and also using the simple

If only Duct Tape were conductive.........? Dave - W?LEV wrote:

Sorry, that wasn’t worded well…I meant to say, ‘high SWR with sharp dips in SWR at the fundamental frequency and it’s harmonics’. "Silence is golden. Duct tape is silver."

Hey, if it works it works! Just curious, by ‘the whole range’ do you mean the entire frequency sweep or just the in-band portions of the sweep? Typically the SWR curve over the entire sweep of an

As previously mentioned, low SWR is no indication of a good and efficient radiator - an antenna. After all, a good dummy load exhibits stellar SWR over quite a wide range, but doesn't radiate too well

Thank you so much for your effort. It has been a godsend for those of us who don't have the time to track everything.

"Good" for me, might taste awful to you. Not leaving the EFHW here. It works! [email protected]> wrote:

Low SWR doesn't mean it's a good antenna !

Can someone please help me. Which of the following is correct I would figure the one that has a 50 ohm impedance but the pattern looks wrong. What am I doing wrong. Earle D Wilkinson (6Y5EW) Home

Thanks DiSlord for the new version, and Yes, time is 2000/01/01 00:00:30 (LSE) and I can not change it. Antonio-EA7HJ

Will do. I just did a 80--10 meter sweep of my 80-10 EFHW with 12801 data points on the PC app. Wow! The Smith Chart and SWR show why the EFHW is so popular. SWR <= 2:1 over the whole range!

Hi Chris the screen shots show the correct driver and the correct hex in the uart, plus the QT version using the same set up always connects as does the app from 1 of 11. This tends to make me think

I had something similar happen... Once windows decides the type of device (right or wrong), it assigns a driver. Often, when you try to load the correct driver, windows will insist it already has the

Further the COM3 port allocated when nano is connected details show as ports\VID\04B4&PID_008 joe

Using device manager and connecting the vna unit aUSB to Uart adapter shows up usb\vid_04B4&PID_0008&REV_001 usb\vid_04B4&pid_008 is this what you mean?

Think of it in golfing terms. It's like trying to putt with a 'mashie'. (personally I prefer a #2 wood to putt) Mike C.

Lighten up, I'm an old F*** but names don't bother me. I'm just P when somebody steals my marbles. :0) Mike C.

NanoVNA Saver search for this USB devices USBDevice(0x0483, 0x5740, "NanoVNA"), USBDevice(0x16c0, 0x0483, "AVNA"), USBDevice(0x04b4, 0x0008, "S-A-A-2"), you can see this in device id (details):