Are there any NanoVNA products, of any version, that have an adjustable Port1 output level? My V2 unit's output is -10dBm and while that's great for working with passive networks, it's a problem for measuring preamps that can't handle that much signal. Yes, I can add a pad at the input of the preamp, but that will affect the SWR and other measurements. A way of reducing the Port1 output level by 0, 10, or 20dB would be very helpful but there doesn't seem to be any way to adjust the stimulus level, only its frequency range.
Perhaps this capability can be added to a future version.
Bob M.