On Fri, 11 Jul 2008 17:50:18 -0700 (PDT), Bill W4ZV <[EMAIL PROTECTED]> wrote:
> > > >Tom Childers, N5GE wrote: >> >> I've had 1.8 filters in many different rigs over the years and found that >> I >> rarely used them because, in my opinion, they are too narrow for SSB, >> making it >> sound tinny to me. >> > >I'm copying this from the Yahoo Group list because someone recently asked a >similar question. > >************************************************** >Before you give up on the 1.8k filter, be sure to try the following: > >1. Tune in a station exactly using a wide filter. >2. Adjust WIDTH = 1800 (or less). >3. Adjust either SHIFT (my preference) or HI/LO CUT for best audio. > >With proper adjustment you can get good intelligibility down to 1500 >Hz. I believe my SHIFT setting is ~200 at ~1800 BW and goes up to >~400 at ~1500 BW, but let your own ears be your guide. > >I learned this back in my FT-1000MP days and it's absolutely >necessary for using any rig at low bandwidths on SSB. > >I would only recommend a 1.8k for someone interested in contesting or >perhaps DX-ing on the low bands. Unless you have extremely strong >stations nearby, the standard 2.7k will still work fine and you can >always narrow the DSP filter to <1800 when necessary. > >73, Bill That's exactly what I do now with the k3 when the going gets rough on the 2.7 filter due to QRN or QRM. Personally, I think the 2.7 or 2.8 cranked down to 1.8 is good enough when you want to use a 1.8, but I wouldn't buy one. I also learned this with an FT1000MP MK V ;O) 73, Tom, N5GE - SWOT 3537 - Grid EM12jq "Those who would give up Essential Liberty to purchase a little Temporary Safety deserve neither Liberty nor Safety" An excerpt from a letter written in 1755 from the Assembly to the Governor of Pennsylvania. Support the entire Constitution, not just the parts you like. http://www.n5ge.com http://www.eQSL.cc/Member.cfm?N5GE _______________________________________________ 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
