Zero IF and Low IF modes
Posted: Thu Nov 29, 2018 12:19 am
For ham hf band digimode use, under what conditions should i select to use which mode?
How far should the LO freq away from dial frequency? It said "some distance" on youtube.
How rsp1a internal tuner work? If i set a dial freq of 14MHz and LO at 15 MHz, the tuner is a superhet mixer, outputing 1MHz and 29MHz signal to the ADC, right? If LO is 13MHz, the ADC will see singal in "reverse freq order", as LO at 15MHz, right?
73 Simon
How far should the LO freq away from dial frequency? It said "some distance" on youtube.
How rsp1a internal tuner work? If i set a dial freq of 14MHz and LO at 15 MHz, the tuner is a superhet mixer, outputing 1MHz and 29MHz signal to the ADC, right? If LO is 13MHz, the ADC will see singal in "reverse freq order", as LO at 15MHz, right?
73 Simon