I also noted the splatter problem - as well as the poor operators who are unable to listen properly (a station in Singapore) vs the good ones (an Italian) who can.
I think the reason for this close in rejection problem might be the shape factor of the DSP. In my case, it was not spatter as we normally think of it, but just getting rid of the adjacent channel without seriously compromising the wanted channel. My K3 is worse in shape than my IC7400 but it depends on whether or not you use narrow or sharp mode of the IC7400. Luckily, I can install new firmware in the K3. I am sure shape factor adjustment is in the pipeline - or even already there but missed by me. The IC7400 is also a DSP based radio, but I have not seen any options to update the firmware. DSP is the place to fix this - I see no point at all in buying a 1.8kHz filter for SSB , it is just not necessary. If there is a signal 2kHz away inside the 2.7 but outside the 1.8 and 100dB above noise you are going to have problems with their IMDs anyway. No filter is going to help if the adjacent station is transmitting a wide signal. NR is not helpful towards copying weak signals amongst strong QRM. That is not what it is for and you should be able to do much better without it than with it. NR comes into its own when the band is not so crowded but is noisy. -- View this message in context: http://www.nabble.com/K3%3A--SSB---WPX---Filters---Controls-tp16399464p16418717.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
