Remember these are roofing filters not the normal bandwidth filters we are used to. The DSP is going to provide the final filtering. All the roofing filter does is reduce the width of the front end.
Therefore, you might not need all of them or any of them depending on the type of operating you do. The casual operator may not need any additional roofing filters. The supplied 2.7 khz is already pretty narrow for a roofing filter (compared to the 15khz in the Pro3). In my Orion, which has a very similar roofing filter design to the K3, I have a 1.8khz roofing filter for SSB work and a 600hz filter for CW. Those two are all I need. The skirts are wide enough that the signal does not sound pinched, yet it does greatly improve the ability to operate near strong signals. It would be redundant and unnecessary to have any more filters than these two. The interesting question (to me) is the difference between the 8 pole and 5 pole filters, where they go and what difference it will make. I suspect we'll have to wait for people to play with the radios to get a good grip on the implications. k4ia Craig "Buck" Fredericksburg, Virginia USA ------------------------------------------------------------------------------ -- Get a sneak peek of the all-new AOL.com. ************************************** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
