Maybe just a little more clarification on that.
When you mix and take the sum, you don't change the side band.
When you mix and take the difference, you actually invert the side band.
The relationship between the BFO oscillator & the crystal filter passband forces which side band will be created (transmitter) ?or detected (receiver). ? Unless you can move the BFO freq you can't pick up both sidebands, no matter
how you turn the VFO dial. ?
Sent from my iPhone
toggle quoted message
Show quoted text
The crystal filter is just a gateway it doesn't carevwhat type of rf gets through...? We're simply choosing which half of an am signal to pass...? By moving the signal up or down the spectrum by changing the signal frequency. We can theoretically pass
the carrier and a small portion of both sidebands by selecting the proper frequency on the dial
