[Elecraft] K3 as a SW receiver

Grant Youngman nq5t at tx.rr.com
Wed Dec 31 12:13:59 EST 2008


I'd respectfully suggest that anyone who has made this as a serious  
suggestion for SWBC listening, has never done any serious SWBC  
listening ;-)

By all means, if you want to listen to AM SWBC (or AM on the ham bands  
for that matter) you need at a minimum the 6Khz filter, and I'd  
recommend the FM (13Khz) filter as well.

And then I'd recommend continuing to bug Elecraft about the sync AM  
detector, and good flat LF response down to at least 70-80 Hz.  Or  
better yet, buy an R-390A or SP-600 or something similar -- but  
there's no real reason the K3 can't meet that need as well have  
adjustably tighter specs for those who never venture outside the ham  
bands or think the AM mode should be deleted from the firmware :-)

Grant/NQ5T


On Dec 31, 2008, at 10:49 AM, Barbara Maloney wrote:

> I find the stock 2.8k sideband filter to be quite sufficient for AM  
> talk or voice when used in the LSB or USB mode.  The master  
> oscilllator is so stable and with fine tuning one can get spot on  
> the carrier freq.   S/N ratio and adjacent channel selectivity are  
> greatly improved.
> IMHO, would not get the 6k or 13k filters unless one intended to  
> operate/transmit on AM or FM.   If you want serious fidelity, go to  
> digital HD or satellite radio through good speakers.
> Mike, AC5P
>
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