4 inch TouchScreen Portable TinyPFA Phase Frequency Analyzer 1MHz -290MHz Vector Network Analyzer

Features:
TinyPFA can display phase and frequency differences digitally, and display the relationship between measurement results and time in a graph.
The measurement results can be stored on an memory card inserted into the memory card slot, or sent to a PC via USB, and programs such as TimeLab can be run for further display and processing.
The phase and frequency measurement accuracy is BetterThan 1 e-12 per second.
USB rechargeable design, you don't need to worry its battery.
Equipped with a 4-inch touchable display screen, very convenient to carry and operate.
Note:
TinyPFA is not a frequency meter and its internal reference is inaccurate and unstable. It is only used for measuring the deviation of two signals with similar frequencies. It can be used to compare a signal with a very accurate reference signal.
TinyPFA is not a phase noise analyzer.
TinyPFA is only available for specific users who require very accurate frequency analysis. Please read the relevant instructions on tinydevices.org to confirm if it is suitable for your use. We do not provides usage guidance. If you are unsure of the purpose of tinyPFA, please do not purchase it.
Instructions for use reference: https://www.tinydevices.org/wiki/pmwiki.php?n=tinypfa.homepag