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Best verison , with metal shield and rechargable battery , With Case Latest Version , with plastic case and gift box . Officia site: http://nanovna.com/?page_id=21 About NanoVNA NanoVNA is very tiny handheld Vector Network Analyzer (VNA),designed by edy555, it is a very portable but high-performance vector network analyzer. It is standalone with lcd display, portable device with battery.
Edy555 put his software at https://github.com/ttrftech/NanoVNA
View this link to get the original design documentation for edy555. At first, NanoVNA was designed to work at 50kHz-300MHz. NanoVNA's mixer SA612A needs 5V power supply to work properly. The battery can't be driven directly. The original version of NanoVNA needs external USB power supply to work properly.Hugen recreated the NanoVNA based on the schematic of the edy555 and added a DC-DC circuit to allow the NanoVNA to work independently. Hugen tried to extend the measurement frequency using harmonics, allowing the NanoVNA to measure frequencies up to 900MHz. The Hugen version of the hardware and software is available through this link. You can make or purchase a finished NanoVNA at a low cost. NanoVNA is now the most active vector network analyzer and antenna analyzer project in the community. Usually buying a finished NanoVNA-His the most convenient way to get NanoVNA. Edy555 is updating his software, harmonic extensions have been added, usually a well-made NanoVNA can be acquired better than 40dB dynamics at 900MHz , even we can expand to 1.5GHz, but only 20dB dynamics above 900MHz. Cho45 adds TDR (Time Domain Reflectometer) functionality to the NanoVNA. Time domain measurements are widely required by the community to quickly measure the length of the coaxial cable and determine the cable fault point by calculating the discontinuous impedance.
This is a DIY product with vector network measurement function. It includes a 2.8-inch touching screen, TX/RX measurement, can determine the complete S11 and S21 parameters, if you need to get S12 and S22, you need to manually replace the transceiver port wiring.
The PC control software can export Touchstone (snp) files, which can be used for various radio design and simulation software.
The improved frequency algorithm can use the odd harmonic extension of si5351 to support the measurement frequency up to 900MHz.
It is mainly for the study of customers who can DIY, you need to prepare the SMA cable yourself.
It has no metal shield. The main advantage is that users with strong hands-on ability can open the machine to view the circuit structure. However, when measuring frequencies above 300M, it is easy to be interfered by other signals. So this product is recommended for learning principles and use at lower frequencies.
The 50k-300MHz frequency range of the si5351 direct output provides better than 70dB dynamic.
The extended 300M-600MHz band provides better than 50dB of dynamics, and the 600M-900M band is better than 40dB of dynamics.
Small and portable, easy to use, this project aims to provide an RF gadget but useful instrument for enthusiast. Specifications:
Color: black plastic case
Measurement frequency: 50KHz~300MHz (50KHz~900MHz, enable extended firmware)(the products will be updated with the latest firmware before shipping, the actual measurement frequency is 50KHz~900MHz)
RF output: -13dbm (maximum -9dbm)