On Sat, Aug 29, 2020 at 07:52 AM, Erik Kaashoek wrote:
? ?See here:?
? ?...
The dynamic range in this setup is limited due to the reverse leakage thru the mixers ..
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Erik,
? ?I compared the two tinySA tracking generator set-up against a NanoVNA-H4 s21 measurement.? I see what you mean about limited dynamic range.? Far better to own a NanoVNA and a tinySA and let each do what it does best.? When you only own a hammer everything looks like a nail.
? ?30MHz LPF, NanoVNA-H4? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??30MHz LPF, two tinySA tracking generator set-up
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? ? ?
? In a pinch if you own two tinySA's and no NanoVNA (unlikely with the low cost of each device) then the two tinySA tracking generator setup may suffice for a NanoVNA s21 measurement - if you aware of the dynamic range limitations.??
- Herb
