Teardown of a NanoVNA-F V3 Vector Network Analyzer
Kerry D. Wong reviews an upgraded NanoVNA-F V3 which has a frequency range between 1 MHz to 6.3 GHz and takes a look at some of the teardown pictures of the V3 to see what has changed between from the V2 version.
In V3, the synthesizer/VCO used is a MAX2870, which can synthesize frequencies between 23.5 MHz to 6 GHz. Whereas in V2, the maximum frequency is limited by ADF4350, which only goes up to 4.4 GHz. There are two MAX2870 used, one is near the S11 port (left), the other is near the S21 port (right). The change in the synthesizer chip largely explained the specified performance gains in V3.
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