On Fri, Sep 4, 2020 at 06:38 AM, Bob M. wrote:
.. Are there any NanoVNA products, of any version, that have an adjustable Port1 output level?
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Bob,
The current version NanoVNA-F as well as the NanoVNA/NanoVNA-H4 with DiSlord's firmware have a 'Power' menu for adjusting the output power. I haven't looked at the actual dBm increment so I don't know if the range would meet your needs.
If you did an SOLT calibration after an attenuator attached to Port1 wouldn't that correct for impedance measurements after the attenuator? To answer my own question I did a SOL calibration after a 6dB attenuator attached to Port1 and then measured a 75 and 100 ohm precision mismatch attached to the output of the attenuator. The measured values were 75 and 100 ohms as expected.
- Herb
