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Nanovna

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Beginners Guide to Vector Network Analyzer & Duplexer Tuning

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Nanovna

  1. 1. Beginners Guide To Vector Network Analyzer & Duplexer Tuning KG5RDF NanoVNA
  2. 2. KG5RDF NanoVNA is an RF network analyzer that provides vital insights into the operation and performance of RF networks of all types. The RF network analyzer provides a stimulus for the network and then monitors the response (Open Source Product). NanoVNA
  3. 3. - Basic version Edy555 version 1.x, 50 KHz-900 MHz, $40 - Recommend Hugen version “H” 2.x, 50 KHz-1.5 GHz, $60 (Royalties Paid) - Many options and features available, but at a cost (Known issues) - Several Windows based programs and phone apps (Known issues) NanoVNA KG5RDF
  4. 4. NanoVNA - Channel 0 TX - S11 represents how much power is reflected from the antenna (Return Loss) - Channel 1 RX - S21 represents the power transferred from channel 0 to channel 1 (Pass Through) KG5RDF
  5. 5. - Calibrate Unit First - Cavity Filter, Channel 0 to input Channel 1 to output - Notch Filter, low frequency port to Channel 0 and the antenna port to Channel 1 - Notch Filter, high frequency port to Channel 0 and the antenna port to Channel 1 NanoVNA KG5RDF
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  9. 9. KG5RDF NanoVNA - Tap right side of NanoVNA screen - Tap Display, Trace, Channel 3, off - Tap Display, Trace, Channel 2, off - Tap Display, Format, Channel 0, Back, Back - Tap Display, Format, SWR - Tap Back, Back, Stimulus, Center (Center frequency will be displayed) - Tap bottom right corner, digit pad will be displayed
  10. 10. - Tap in frequency (your frequency) 443.825000, then M - Back, Back, Stimulus, Span (Span frequency will be displayed) - Tap bottom right corner, digit pad will be displayed - Tap in frequency span 25.000000, then M NanoVNA KG5RDF
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  15. 15. - After your done connect an SWR meter with dummy load to the Antenna port - Place dummy load on Low port - Connect a transmitter at the High port - Transmit the low frequency into High port - You will see no output on the SWR meter if your adjustments are correct - Reverse and do the TX side with the receive frequency NanoVNA KG5RDF

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