Re: Measurement of high impedance loads
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I have added the vswr and the return loss. Can the nano measure down to 0.1dB return loss?Sent from my Samsung Galaxy smartphone.
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-------- Original message --------From: Warren Allgyer <allgyer@...> Date: 12/08/2019 13:55 (GMT+01:00) To: [email protected] Subject: [nanovna-users] Measurement of high impedance loads Earlier there was a comment in one of the threads asking if anyone had measured the accuracy at high values of resistance. Here are four data points I measured this morning. The measurements were done at 500 kHz in order to minimize the reactance of the test fixture which was a pair of binding posts on a BNC adapter. The first value is the actual resistor value as measured on a VOM and the second is the value indicated by the Smith Chart on NanoVNA.? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?810 ohms? -? 810 -16.2-1.08dB1500 ohms? -? 1500-30-0.58dB2980 ohms? -? 2880-57.6-0.3dB8100 ohms? -? 7940-159-0.11dBWA8TOD
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