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Did you apply RESET prior to CAL. Sounds like a faulty CAL.

Take a measure at 1 MHz. Also, the L value should tend to a larger value as F increases and eventually go parallel resonate on the first loop.

Hi Pete, thank you for your interest in this. My European coax cable type "Aircell 7" is not common in the USA. So it was not listed within SimSmith's coax table. In my case length measuring was easy.

Just for fun, I went on Mouser to look for "high frequency" leaded inductors. The only manufacturer they list for such products is Vishay, who has a model TR021 with inductances from 0.022 uH, tested

In the attached image is a picture of the fixture I rigged up for testing leaded components. The two sma connectors are soldered in to the copper on a piece of single side pcb. The center tine of the

These are not intentional sources, just some weak unintended radiation. Bluetooth has a *real transmitter* at 2.4 GHz, where the new nano is likely to be used. Besides slowing down the measurement,

I have a nanovna that continues to indicate 50 ohms when S11 is open. Only if I short-circuit the input will this change. I already calibrated it. But this did not help. Can I do something about this

I can confirm that carbonized foam is quite effective at UHF and above... 73 Glen K4KV

Hi Gwen - Do you use nanovna-saver with GalliumOS? While you provided the pointer to https://galliumos.org/ in an earlier message, are there URLs you can recommend for hints, tips and tricks to

Hello Klaus, Thank you very much for providing the screen shots. I have made two measurements with *Test field 8*. 1. In Test field 8 the inductor looks like to have nominal 470 nH. If you accept a

Hi Gabriel, I found that simple ESD foam acts as quite good EMI absorber, give it a try and insert some of it between/above the cans.

Tried a TCM1-63AX (had these in stock), it gave really strange S11 graphs and not good directivity. Might investigate it further. Crosstalk between microstrips or grounded CPW is low in theory, but my

EBay has a disputes procedure which I have used many times. Every time I have used it, the case has been resolved to my satisfaction, with either 1) Return item at sellers cost for a full refund. 2)

I've screenshotted the Number 8 and 10 of the new version (serial LC and L): The capacitive parts at the bottom are good, but the top side isn't it. The measurement with the professional equipment are

Aha! There is so "matching" if there is a network involving reactive components, regardless of the designer's intent for the operating frequency. Also, if the cable between the DUT's output and the

The wiki at /g/nanovna-users/wiki/jog_switch has a link to OEM multi-directional switch

This is why I reflashed my Acer chromebook with GalliumOS. Since it's a Linux distro, it isn't dependent on talking to the Internet to function. I still have a newer ASUS Chromebook that does

HI Chris, The Smith Chart is a plot of the reflection coefficient, gamma. Gamma is a ratio as follows: The voltage across the transmission line due to the reflected wave divided by the voltage across

The attenuator should be placed at the output of the amplifier, not the input of the VNA. Output attenuation is a technique used to assure an amplifier remains stable throughout its gain/bandwidth

S21 is likely peaked due to the self resonance of the inductor in the drain/collector. -- *Dave - W?LEV* *Just Let Darwin Work* *Just Think*