[Elecraft] Re： 2.7 vs 2.8

[Johnny Siu]

Hi everyone,

From my past experience with K3, I felt the stock 2.7Khz filter was not bad at all.  Therefore, I quite agree to that proposal of equipping an additional narrow filter instead of replacing the 2.7Khz filter with 2.8khz filter.

73

Johnny VR2XMC



----- 郵件原件 ----
寄件人﹕ "David Ferrington, M0XDF" <M0XDF at Alphadene.co.uk>
收件人﹕ Bill VanAlstyne W5WVO <w5wvo at cybermesa.net>
副本(CC) elecraft at mailman.qth.net
傳送日期﹕ 2010/4/12 (一) 8:30:11 PM
主題： Re: [Elecraft] 2.7 vs 2.8

Yes, I'll second that, the 1.8 filter does a good job on SSB, not sure how good the DSP alone would be because I've never tried it, but starting with a 'normal' 2.8 bandwidth and gradually reducing it down until is 1.8 does help a lot. I have the second preset on the filter set up for that.
BTW, don't use width and shift to get to the 1.8, use Hi/Lo cut and bring the lo point up a bit and the hi down the most - seems easier to get a good setting that way.
73 de M0XDF, K3 #174
-- 
The soul is the same in all living creatures, although the body is
different. -Hippocrates, physician (460-c.377 BCE)

On 12 Apr 2010, at 13:23, Bill VanAlstyne W5WVO wrote:

> I already have the 8-pole 1.8 kHz filter installed for narrow SSB work, however, which works great in crowded bands.