On Wed, Apr 29, 2020 at 01:10 PM, Marcus Gustafsson wrote:
So how would one go about to reduce the mixing products in order to build a cleaner signal gen?
A LPF on the LO to get rid of its first harmonic?
And a LPF on the IF output to remove the LO leakage, however this would sacrifice the max frequency or increase power rolloff unless the filter contains a trap for the LO.
Any other ideas?
I can newbie chime in on this one. I still haven't gotten past my filter designs, though did receive the 5.5x2.5mm barrel plug and opened up yesterday for the 64.5W laptop power supply to power the SH72 and see how that works interim as a most cost effective portable T12 tip soldering iron.?
A band pass filter that is tunable comes to mind.? I'm thinking that would be best.? Maybe you can gang a few ranges that can be switched.? ?
Like another way to think of is a high pass filter that is lower than the selected frequency range as well as a low pass filter that is higher than the selected frequency range.?
I'd like to read about other ideas... since I can't think of anything else off hand.? I'm guessing there might be solid state digital ASIC's now days I've not read about.?
jafinch78 .