Winfield Hill wrote:

I'm wondering if anyone else has encountered this failure?

I bought a power supply E3647A and the encoder feels like very bad
quality. My boss bought the same power supply six month ago and the
encoder feels much better.

So I thought the quality of HP goes south and I bought the freq
generator from Rigol. When HP is selling the quality of
Rigol now, I dont like to pay the price for HP anymore!

Olaf