A 30 minute you-tube video or similar will get you up to speed. The smith chart for the uninitiated is a bit intimidating. ![]() I swept a Comet 2x4SR from 140-550MHz and as advertised (by comet) SWR<2.5 from 144-500. Definitely accurate enough to where my antenna building ham buddy is super stoked now to buy his own. The instrument is a bit cumbersome to use standalone, but the computer software (NanoVNA Qt, and Saver), makes life so much easier….My reports are quite accurate. We are so lucky to live in these open source times. Considering my last antenna analyzer was built by Comet, set me back almost $270, what can I say? We are lucky to have almost lab accurate tools for pennies now! How do you stack up a $115 tool to a $10,000 lab grade tool? As an amateur enthusiast I am STOKED. I got mine for $115 delivered in 10 days from a USA warehouse. My particular model is a ‘supported clone’ meaning it will be able to be upgraded by new official firmware in the future. ![]() After doing a TON of research on the NanoVNA official website, you can make an informed choice and choose the unit which suites your needs.
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