Talking about superheterodyne discrete transistor mixers. IF is supposed to be at 10.7MHz.
*) Suppose my RF amp feeds the signal to the mixer transistor.
*) LO feeds the same transistor from 98-118MHz. This is my assumption.
My question is if I want to get 10.7MHz IF, I need to oscillate LO at 98.7-118.7MHz?
*) If so, what are all the image frequencies generated? Will they be continues spectrum? What's the range of IF's generated by this setup?
*) If I oscillate LO at 88-108MHz(same broadcast band), will I get 455KHz IF as a image frequency?
I don't have frequency counters. So Please enlighten me with a detailed explanation of IF range spectrum generated in both cases.
*) Suppose my RF amp feeds the signal to the mixer transistor.
*) LO feeds the same transistor from 98-118MHz. This is my assumption.
My question is if I want to get 10.7MHz IF, I need to oscillate LO at 98.7-118.7MHz?
*) If so, what are all the image frequencies generated? Will they be continues spectrum? What's the range of IF's generated by this setup?
*) If I oscillate LO at 88-108MHz(same broadcast band), will I get 455KHz IF as a image frequency?
I don't have frequency counters. So Please enlighten me with a detailed explanation of IF range spectrum generated in both cases.