Please explain what you want to achieve. I guess you won't be able to filter lower and upper sideband with 250 kHz separation. Are you asking for single side band conversion? It would involve a quadrature mixer.
Please explain what you want to achieve. I guess you won't be able to filter lower and upper sideband with 250 kHz separation. Are you asking for single side band conversion? It would involve a quadrature mixer.
Heed what FvM is telling you. Mixing 2Ghz with 125KHz is technically easy but you get TWO very close frequencies out of the mixer and it would be very hard to select one from the other. The mixer outputs would be:
1999.875MHz and 2000.125MHz, so close together that a complex filter would be needed to isolate them.