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I'm wondering if the correct way to measure the length of window line with a NanoVNA is fundamentally different than that of measuring coax. I'm following the method described by Arie

Charlie, I sent you details by email.

The front end of CH1 just contains some resistors and SA612 mixer. Try looking there for damage first.... Shown here >>> https://postimg.cc/Z9R4zNTw Full schematic here >>

That would be great. Much appreciated Danny.

I also recently purchased the AURSINC SAA-2N v2.2 which I believe to be the same internally. I loaded DiSLord's "V2 480x320 v1.1.00.bin" and had some difficulty getting the screen re-inverted but got

I recently purchased a NanoVNA V2 because it has the extended frequency range to 3GHz. The firmware version is well over a year old (see attached photo) and was wondering if there are any recommended

This is a H4? Original NanoVNA RF design, just with a bigger screen? The first thing after the CH1 input is a resistive pad (I can't remember how many dB, but something like 17-20 dB). I would have

I’m no wiser after these posts. S21 does not work as not able to calibrate it. It has gone bad. Overload. Is there a fix? I’m measuring gain of a LNA as I have done many times and now the port is

Has anyone wound a high common mode impedance 1:1 balun with 50 ohm coax and calibrate at the output end of the balun? I made a balun years ago for use with GR Z bridges (GR 1606 and 916) for this

What I wanted to say here is: A quarterwavelength at 500 kHz = 150m electrical. A 1/4 wave physical cable with VF=0.78 would then be 150 x 0.78 = 117m long or with a VF of 0,66:? 150 x 0.66 = 99m So

I've measured windowline many times using the NANO - something I can not easily accomplish with the HP 8753C. Be sure the NANO is not connected to any conducting cabling, chargers, USB cables, or

I'm wondering if the correct way to measure the length of window line with a NanoVNA is fundamentally different than that of measuring coax. I'm following the method described by Arie

Hi , some time ,is it necessary to force the installation of the STM drivers as wrote on readme.txt , inside the directory of the en.stsw-stm32102. / (C) COPYRIGHT 2018 STMicroelectronics *

This solution solved my issue, which was exactly the same as OP. Thank you sir!! Tim NC0Q

David, The SD card routines have been tweaked to work with most TF cards in SPI mode. Unfortunately, not all cards support that mode of operation. Most newer cards do support SPI mode.

I could not find any of my SanDisk 16gb cards that would work. Switched to a Samsung 32gb and it worked perfectly.

Yes, I'd put the 20 dB pad on the UUT output (i.e. the CH1 port, not the CH0 port).? Then you do a calibration (with the pad in place).? Measure your UUT, add 20 dB to the S21 magnitude. You could

I think Jim was saying two things: 1) Calibrate it normally and then measure a known device, like e a 20dB attenuator, and see if you get a sane result. 2) If measuring a (say) 20dB amplifier, put

Hi , in my opinion , calibrate the S11 port , with 20 dB of attenuation applied , make non sense . Maurizio

If you check with a thru and/or a pad, do you get the right values (i.e. did you not damage anything). You can put 20 dB attenuation at the output of your amplifier under test. Calibrate (Short, open,