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I decided to move to a RigExpert and am offering this NanoVNA at $50.-, this includes a compartmental box and all of the fittings. Here is a link to the Amazon page for this device.
- IMPROVED TO LATEST VERSION, NanoVNA-H4 is upgraded to version 4.2, battery capacity upgraded to 1950mAh, rechargeable and USB powered by power supply or power bank. Last longer enough when working outside.
- IMPROVED FREQUENCY ALGORITHM: The improved frequency algorithm can use the odd harmonic extension of si5351 to support the measurement frequency up to 1.5GHz. The 50K-300MHz frequency range of the si5351 direct output provides better than 70dB dynamic, The extended 300M-900MHz band provides better than 60dB of dynamics, and the 900M-1.5GHz band is better than 40dB of dynamics.
- PC CONTROLLED, Using PC software NanoVNA Saver, it can connect to a NanoVNA and extracts the data for display on a computer, and for saving to Touchstone files. We can export Touchstone (snp) files for various radio design and simulation software through PC software.
- MULTIPLY FUNCTIONS, The default firmware main function is used for antenna performance measurement. The TX/RX method can measure the complete S11 and S21 parameters. If you need to obtain S12 and S22, you need to manually replace the transceiver port wiring. It is also compact and portable, convenient for carrying and using.
- ENSURING ACCURACY, The metal shield is designed to reduce the external interference and improve the measurement accuracy. 4in Display will show you accurate curve and data, improving your using experience.