Icom IC-7300 Manual page 6

Its Mostly About The Receiver
Basic Receiver Elements (Direct Sampling ex. IC-7300)
Bandpass
Filter
• Most filtering, all noise reduction and signal detection
steps are performed digitally
• AGC System must maximize A/D converter resolution for
the desired signal
• Many possible sources of non-linearity are eliminated
• A/D Converter Resolution and Oscillator Phase Noise become the
main performance limiters
• Digital processing speed and algorithm performance also matter
RF (Pre-)
Amplifier
A/D
AGC Loop, IP+
Digital
Osc.
Digital
Proc.
D/A
(FPGA)
6