Double & Triple Conversion Superhet / Superheterodyne Radios

[@matambale]

Do not know how I missed this video, and your previous one on this topic. Very clear presentations.

[@ElectronicsNotes]

Really glad you found these videos useful. Thank you for your comments.

[@serkanhititli5890]

Thank you teacher. I was getting many unwanted frequencies at 10.695 mhz interfrequency. I saw your explanations while researching how to get rid of these fake frequencies and I applied them. I used 64.695 mhz in 1st interfrequency. 2nd if 10.695 mhz passes through crystal filter. There is a pll vfo that works up to 160 mhz. si5351. 64.700+vfo in first mixer. I used 54 mhz (54 mhz fixed) in second mixer. I was passing the second mixer output through 10.695 mhz crystal filter. I also used a 10.695 mhz crystal oscillator in Ssb 10.693.5 lsb 10.696.5 mhz usb. By using high IF intermediate frequency, I got rid of many unwanted frequencies and chirping. Thank .😀

[@ElectronicsNotes]

A great bit of detective work to find the source of the problem and then remove it. Well done.

[@dralive007]

Excellent 👍

[@nonokodog622]

Very nice thank you. I know enough to confuse myself. I took apart a 1980's CB and realized it used VCO. Then I had to remind myself how a diode could be used as a voltage controlled capacitor...

[@ElectronicsNotes]

Glad it helped!