I needed something to check my antennas with. When looking around I found the miniVNA Tiny. VNA stands for Vector Network Analyser which means it can measure both the amplitude and phase of signals. The mini VNA Tiny is equipped with two ports so it can measure both reflection S11 and transmission, S21. On more expensive VNA there is normally a switch so that the reverse parameters, S22 & S12, can be measured as well. But this can of course also be done by swapping the ports manually.
It has excellent support for both Android phones and for Linux computers. In the later case it is using a neat Java program. All measurement seen on these pages has so far been made with the Linux Java application. After a simple open, short & match calibration I have done measurement on all my antennas and a few more...
The frequency range is from 1 MHz to 3GHz at the expense of a slightly lower maximum attenuation during S21 measurements compared with its lower frequency companions.
- Frequency range from 1MHz to 3GHz
- Frequency step of 10Hz
- Range of Z from 1 to 1000 ohm
- RF Generator power output of -6dBm @ 500 MHz
- Dynamic range of up to 70 dB @ 500 MHz
- Supply is Powered from USB
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