Software upgrades are also provided via the USB interface. Power supply is done by the USB interface, an external power supply is not required. The analyser can be used as a low power HF generator as well. Impedance (Z) can be measured from 1 to 1000 Ω, the dynamic range is up to 70 dB. The results can be displayed or stored as Smith diagram.ĭue to the calibration with an optional calibration kit (open, short, load, see arrticle 21010.SMA) the measurement results are precise and easily reproducible. The device works as a vectorial analzer, suitable to do typical quadrupole measurements of S11 and S21 parameters. As a two-port system the MiniVNA-Tiny can be used for transmission measurements on band filters or amplifiers. The MiniVNA-TINY is a network analyzer and does not only allow measurement of SWR and impdances of antennas. Remarkable is the very large frequency range from 1 to 3000 MHz. The MiniVNA-TINY is a very compact antenna analyzer with USB connection.

Frequency Counter, Near Field Receivers.

Morse keys, electronic keyers, accessories.

Stationary, directional antennas (Yagi, X-Quad).

(I also get a smaller spike at 1044 MHz as seen on the screendumps.) Is anyone able to tell me what (could be) wrong ? Does the miniVNA Tiny go back again or whats the deal ? I hope the screendumps names below makes sense. What am I doing wrong ? I also did some tests at 'short', same story. If I load these data again (stop/start the program, load calibration), I get the same spike around 1525 MHz again. If I then do a calibration again, save and update data, the scan looks again ok (without the spike at 1525).

Now, if I then load the calibration data that I just created, things starts to look very strange! I get a large 'spike' (when looking at Z) around 1525 MHz. When I then do a 'single scan' with the 50 ohm load on the DUT port, I get a 'ok'ish' scan (I think). I can basically go thru the calibration procedure, save the file and press 'update'.

Now, as this is my first VNA (I have a basic understanding of it, I can use my spectrum analyzer etc, so not totally lost) I feel that either I'm doing something wrong, or there is something wrong with the miniVNA (I hope the first I have gone thru the calibration steps (open, short and 50 ohm). Hi all, I got my first VNA, a miniVNA Tiny from miniradiosolutions.

Minivna tiny