开云体育

I agree and was going to put forth the same request as Rudi just did: Due to an ever-increasing number of NanoVNA firmware developers providing binaries on this forum (I think it's up to 5 now) and

Hi Rune thank you so much for this application which I have been using to good effect this past week with the nanoVNA. I think there may be a problem with saving and loading calibrations. Yesterday

Hello Erik, Thank you for adding your extension to the Hugen nanoVNA version 0.1.1. It would be nice to fill out in the "version window" the version number, e.g.: 0.1.1 + scan, 1500MHz Then you

Some clarification from my earlier measurement. The Measurement output from CH0 ranges from -13 dBm at 55 kHz to -36 dBm at 900 MHz..... a more than 23 dB variance. Beginning at the first increment

Hi hwalker.Very thanks for answering my post & i read before your procedure. So the S11 isn't interesting in the LNA Performance. Regards.

The output power of the SI5351 is automatic set depending the requested sweep frequency, 2mA below 300MHz, 8mA above 300MHz Similar for a manually set fixed output frequency using the freq

Hi, Andy, we had the same idea, I measured the output and the frequency accuracy on the weekend. It is very bad if there are 5 kHz difference, e.g. on LF...the band is < 2kHz wide. I have set the

Why not try the following console commands through a script: pause (the scanning - still generates output) now loop the following via a data driven stream... freq 1000000 (wait) freq 1000005 I

I just checked my NanaoVNA output and frequency accuracy, utterly superb. Good enough to generate WSPR signals, or simple FSK/CW QRSS signals. The latter are normally send with a 5Hz shift, with a

I just measure 100mv peak into 50R at 50Khz to 50Mhz (-10dbm) At 70Mhz it was 70mv (convenient to remember). I was amazed at how accurate the out put frequency was according to my GPS calibrated freq

I think the -10 dBm number is based on conversion of the unterminated voltage. My unit puts out -17 dBm at 100 MHz and -19 dBm at 900 MHz when properly terminated in a 50 ohm load. This level is

Hi Rune: Keep up the great work - you're an indispensable asset! You might try thinking a little bit laterally. Other similar python programs I use (like the qspectrum sdr data analyzer) split the

Hi hwalker Ok with your commercial kit, if I am guessing right you do not have the cal kit data ? The HP male load I have a couple of these and are far from impressed. I have also a BNC special made

That looks the business allright :)

Jeffrey, I've worked slightly more on the ideas you presented, and just pushed an update that makes it *nearly* fit on a 768 pixel screen. It does actually fit, I believe, if you hide the task bar. I

Said, I posted this procedure earlier that I used to check the gain of a RF preamp. The device under test was a Mini-Circuits preamp with a handwritten note saying, "27 dB gain, 1-1000 MHz". Test

Kurt, Thanks for the comments. I am fortunate to have a commercial BNC VSWR kit that came with OSL standards plus various mismatches. I picked it up from an engineer's estate sell and was able to

Very thanks for quick answer qrp.ddc. I made the 2nd manipulation with 20db connected to ch0 & ch1 and turned the Orange & blue traces & have had the S21 & S11.I think i was wrong. The amplifiers are

in order to measure S11, you're needs to put 50 ohm load on LNA output and connect CH0 to LNA input. But first, make sure that your LNA can handle 0 dBm level! If it cannot, then there is no simple

hwalker, you can find adapter delay by connect unmatched terminator and check Group Delay screen. Of course it will also include delay of terminator, but with a series of measurement you can find