[TenTec] Orion and phase noise

w8au at sssnet.com w8au at sssnet.com
Fri Dec 5 15:19:06 EST 2003


At 01:42 PM 12/05/2003, John Rippey wrote:
>Isn't the end result that a receiver with much less attractive phase noise 
>numbers can probably perform just as well as the Orion in the current 
>noisy signal environment? Is this truer for phone than CW?
>Am I missing something?

Yes...   keep in mind that the Orion low receiver phase noise means that 
there are "fewer internal osc signals" (phase junk) to mix with the 
incoming RF, giving you purer reception.   So, a simplified (but not 
extremely accurate) way of looking at would be that your reception would be 
50% better!   If the adjacent channel "phase noise generators" were clean 
then you would then be 100% better....    (as I said, a simple way of 
looking at it)  :-)

Perry    w8au





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