onnections are there).
JDB.
On Sun, Feb 23, 2020 at 10:13 PM Bob kb8tq wrote:
> Hi
>
> What does the temperature coefficient of your “hardware HPF” filter caps
> look like?
> Are they a type that has significant hysteresis?
>
> Bob
>
> > On Feb 23, 2020, at 3:05 PM
Dear Attila,
Thanks for the heads up.
I am currently using a HPF both in hardware (capacitive coupling into the
balun driving the ADC inputs) and in software before the ZCD. This should
counteract the first-order effects of this offset, although second-order
effects (converter nonlinearity et al)
