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Filter response is very dependent on terminations. Higher load Z than filter designed load will increase coupling between filter elements, widening bandwidth and usually increases loss. Lower load Z

Measured 50 Ohm and 75 Ohm, the results were pleasing. I'll tell you how- The CH0 channel in Format is REAL and the CH1 channel is SMITH, the frequency is set to 50 kHz-10 MHz. I connect the line to

A feature suggestion: Is it possible to get a delay in picoseconds directly from TDR. That would make it easier to get a starting point. I tried several values from 200ps to 50000ps and did not get a

Greetings, struggling with the nanovna-saver software for linux mint 19.3 mate for over a week now.I am definitely not a linux guru by any means, more like a semi dummy. following the instructions at

Could this be resolved by using a proper (read: not cheap) N cal kit? If N connector is only an option and not forced on all users, it seems to me that it would be acceptable to expect the user who

Hans, because of real world losses, in a system with only one matching network, instead of a lossless system-wide conjugate match we can only have a conjugate match at a single reference plane. In

Hello, Bo, You will probably agree with me that only odd multiples of the fundamental frequency can be used for our measurements. They have amplitudes much higher than the even ones. I beg you not to

I also just ordered the 4" nano using PayPal 73 Glen K4KV

Hi In this old message I posted some pictures of the Si5351A output as the fundamental frequency approaches 300 MHz:

Thank you. I did not notice it at first. There was a discussion about Vna_saver 0.21 which didn't look very interesting at first, but there was info about this. I should have read it first

I have the new version as posted in 7768. The Board doesn't work as it should. Number 8 is very bad and number 10 can be better.

Enter the delay in the calibration panel (negative number) the graphs will be updated realtime, no need for new sweep -- NanoVNA Wiki: /g/nanovna-users/wiki/home NanoVNA Files:

Dr. Kirkby, I posted one day regarding safe payment with Alibaba.com I am also not willing to enter my actual billing information! I recently learned of https://www.privacy.com I used this service to

On Fri, Jan 10, 2020 at 10:03 AM, bill K7WXW wrote: Hugen - Nice work. I am looking forward to working with the improved version. On the alibaba page, the four inch model is the more expensive of the

Under the assumption that one of the devices, vna or sa is Bad, pad the sa or the vna with say 10 db of pad. This will force a decent match, to the tune of a 20db return loss. Then do your filter loss

As a check try the same measurement with just a pad. Try a 3 or 6 db whatever pad you may have on hand. The suspect area I believe is either source or load termination either from the vna or the sa.

To anybody who is wondering how the switch works internally, mine was broken, so I tore it apart and photographed it. Then I enhanced the photo to explain the contacts. -Pete K7PEB

Its in the files section of the Nanovna group under presentations.? On Fri, 10 Jan 2020 at 4:23 PM, uni berry<uniden355@...> wrote: Hi Luc, Could you please show me the link for the english

I have an open circuit on the other end of some 50cm of coaxial cable. What is the easiest way to insert some delay to tune off that cable. NanoVna_save seems to need to calibrate the Vna after every

Yes, that’s exactly what I see