I am curious to hear opinions of others who have used the 8 pole 400hz filter and the 5 pole 500hz filter.
Having used both, I can't tell much, if any, difference in normal CW operation. There are perhaps three advantages to the 400 Hz filter: 1) it is nominally zero offset - if you plan to get the KRX3 you will not need to be concerned about matching offsets in the second filter at a later date. 2) The nominally tighter bandwidth and steeper skirts are very handy RTTY and avoid the need to a tighter RTTY filter 3) The steeper skirts provide slightly more protection against AGC pumping from the behemoth +/- 500 Hz away. This is probably something one will not encounter outside a contest and I've found more problems with "dirty signals" (clicks) than with AGC plumping. The filter isn't going to resolve clicks! Both my K3/KRX3s now have a pair of the 400 Hz filters with a single 200 Hz filter in the main Rx if I need anything tighter. 73, ... Joe, W4TV On 1/5/2013 1:36 PM, ac8jd wrote:
I am ready to pull the trigger on a CW filter for my K3. I am curious to hear opinions of others who have used the 8 pole 400hz filter and the 5 pole 500hz filter. I am not a contester by any means so this is for casual CW operating. All thoughts and opinions are welcome! Thanks! AC8JD -- View this message in context: http://elecraft.365791.n2.nabble.com/What-CW-Filters-do-others-have-tp7568250.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
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