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Re: GetsScreenSE #applications
Here's the link for those interested in having a look: /g/nanovna-users/files/NanoVNA%20PC%20Software/Screendump
By Larry Rothman · #18492 ·
File /NanoVNA PC Software/Screendump/GetScreenSE.exe uploaded #file-notice
The following files have been uploaded to the Files area of the [email protected] group. * /NanoVNA PC Software/Screendump/GetScreenSE.exe ( /g/nanovna-users/files/NanoVNA PC
By [email protected] Notification <noreply@...> · #18491 ·
GetsScreenSE #applications
Hi folks! I have made a Second Edition of my GetScreen program and uploaded it to the files section. The program now supports different models of the NanoVNA and also the nice tinySA. You can add
By Karl Jan Skontorp · #18490 ·
SCPI equivalents?
I wonder if there's a semi-standard set of SCPI commands for commercial VNAs. Then one could make a SCPI : NanoVNA translation layer. Why? It might be useful to leverage other systems that have
By Jim Lux · #18489 ·
Re: nanoVNC -h
I bought mine from RandL.com ( http://RandL.com ) $69 NanoVna Saa2N. 4" 50k to 3Ghz. Had it four days now Looking forward to writing my ham c# App to talk to the serial port I will make it freeware
By Ed March · #18488 ·
Re: Setting up additional networks to achieve 50 ohm impedance matching #design #measurement #filtering #calibration #adapters
I agree John. At best my schematic is a circuit rendering. Maybe the data sheet has info on the required terminations.
By alan victor · #18487 ·
Re: nanoVNC -h
The difference in screen size would have had me returning that right off... I bought my first one there too, and the package that it came in was so tight that pressure was exerted on the rocker
By Roy J. Tellason, Sr. · #18486 ·
Re: NanoVNA RF Demo Kit connection
Rich, attach a photo so the rest of us know what you're looking at.
By Larry Rothman · #18485 ·
Re: nanoVNC -h
Welcome to the group, Bob. Please refer to any of the user guides mentioned in the Wiki. You can print the one I edit - it's in the Files section.? Note: every post you receive has links to these
By Larry Rothman · #18484 ·
Re: Setting up additional networks to achieve 50 ohm impedance matching #design #measurement #filtering #calibration #adapters
I'm following this with great interest as this is something that I'm also busy learning about while waiting for my NanoVNA-H4 - thanks for all the valuable info so far!
By Jacques - ZS1PL · #18483 ·
nanoVNC -h
Hi all I bought what I believe is the nanoVNC-h on fleepay. 50kHz - 900MHz 2.8" screen. Was advertised as a 4" touchscreen. I'm pretty sure it's a clone, a fake and a dud. It turns on ok but how do I
By Bob · #18482 ·
NanoVNA RF Demo Kit connection
I have a new RF Demo Kit board that came with two connecting wires. One end is an SMA male connector and the other end is something that I have never seen before. It is supposed to connect to the test
By Richard · #18481 ·
Re: Setting up additional networks to achieve 50 ohm impedance matching #design #measurement #filtering #calibration #adapters
Alan, I think the actual notch filter is ceramic piezoelectric. Probably more Q in a small package, and easier to keep on frequency. --John Gord
By John Gord · #18480 ·
Re: Setting up additional networks to achieve 50 ohm impedance matching #design #measurement #filtering #calibration #adapters
This arrangement would create the trap --- notch. Assigned a termination of 300 ohms loaded both sides.
By alan victor · #18479 ·
Re: Setting up additional networks to achieve 50 ohm impedance matching #design #measurement #filtering #calibration #adapters
The data sheet for the band reject, notch filter or TRAP is located at: https://datasheetspdf.com/pdf/1154516/Token/XT6.5MB/1 It appears to used in TV receivers and I suspect inside the unit is a
By alan victor · #18478 ·
Re: Setting up additional networks to achieve 50 ohm impedance matching #design #measurement #filtering #calibration #adapters
Andrea, I am not familiar with the band reject filter in circuit 5, but the filter in circuit 6 is probably a fairly standard 10.7 MHz ceramic bandpass filter once common in FM receivers. These
By John Gord · #18477 ·
Re: Setting up additional networks to achieve 50 ohm impedance matching #design #measurement #filtering #calibration #adapters
I meant "what the designer [...] wanted to do" I meant "I still don't know". And now it should be evident I'm oppressed by my own oversights and I'd love having the chance here to edit my messages
By Andrea IK0RNT · #18476 ·
Re: Setting up additional networks to achieve 50 ohm impedance matching #design #measurement #filtering #calibration #adapters
I'm sorry, I forgot to attach... :-( A.
By Andrea IK0RNT · #18475 ·
Re: Setting up additional networks to achieve 50 ohm impedance matching #design #measurement #filtering #calibration #adapters
On Mon, Oct 26, 2020 at 02:30 PM, alan victor wrote: > There is a fundamental idea that is easy to grasp but it has big implications > in achieving lossless > impedance matching. Although we can
By Andrea IK0RNT · #18474 ·
Re: Measuring characteristic impedance of a stripline with a nanoVNA-H
\ Yes, this is very much the case. The other strategy is to design your system so you don't care. For instance, the NanoVNA itself is made on what I assume is FR4. But, because there's a calibration
By Jim Lux · #18473 ·