Thanks for the link, Buck. I had not checked Adam's site since the 7300 became generally available.
Adam adds a lot to the discussion. The 7300 is actually a "hybrid" DSR ... direct down conversion being used to drive the SDR "back end" typical of Icom's current generation of transceivers. In essence, the direct sampling front end replaces the traditional analog up- conversion front end and is responsible for a much "cleaner" (less phase noise, etc.) transceiver. The selectivity, AGC and features are derived from the 36 KHz DSP "back end". All in all very smart design as it leverages Icom's experience and design costs. It also explains the lack of dual receive as that would have required a second, frequency agile "IF DSP" or complete receiver chain like the KRX3. 73, ... Joe, W4TV On 4/27/2016 8:28 AM, Buck via Elecraft wrote:
Very comprehensive review of the 7300 explaining how it handles ADC overload at http://www.ab4oj.com/icom/ic7300/7300notes.pdf K4ia Buck Honor Roll 335 8BDXCC
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