Frank, 500 Hz is already a nice improvement with respect to 2.5 kHz..
> While on the subject of filters, my current setup allows me to narrow > my SSB signal down to 500 Hz. Maxed out, the pass band is about 2.7 > kHz, (3.6 on CW Wide.) > > I have no optional filters installed, so I've been thinking of adding > one or two (I think YK-88CN and YG-455CN). > > I like the idea of having a narrower VBT of 250 Hz (-6 dB) to 500 Hz > (-60 dB) with the YG-455CN filter. BUT, it seems that's for the CW > Narrow mode switch position. Will that do anything all all for SSB? It depends... I don't know the 830 well enough to say. Anyway, the trick normally is to TX in SSB mode and RX in CW mode, and compensate any frequency difference with the RIT control or the CAT remote control. Most transceivers have this cross-mode possibility. Some other transceivers have an RTTY mode which can use a narrow filter, although that is mostly limited to min. 500 Hz. And some can receive RTTY but then only send FSK. In this respect the FT897D is ideal, it allows the use of all filters in all modes. (Which should be the normal case really, why should this be limited? It is set by the software anyway...). I have had bad luck at PI4TUE with the IC756 for instance. I bought a CW filter and found out that the set would not work cross-mode, not even from the memory bank! There the saviour was to shift the 'sweet spot' to 1500 Hz and use the internal DSP with 300 Hz BW. This happens inside the AGC loop, so it is o.k. If your set does not offer one of these possibilities and you don't want to consider buying a new radio you could always buy a K2 kit, which is a box containing 1300 parts. It only needs a bit of soldering, and is ideal for all digital modes :) 73, Rein EA/PA0R/P > > It's a Kenwood hybrid (TS-830S). If a CW Narrow filter isn't going to > help my digital modes RX, then is there some other filter I can add > that will give the improvement you've stated above? > > I've heard of a YG-88S, but don't see any mention of it in the manual. > Looks like http://www.qth.com/inrad/ has some in stock. > > Any suggestions? Well, other than buy a new radio! 8) > > Frank, K2NCC > > > > -- http://pa0r.blogspirit.com Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Check our other Yahoo Groups.... http://groups.yahoo.com/group/dxlist/ http://groups.yahoo.com/group/contesting http://groups.yahoo.com/group/themixwgroup Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/digitalradio/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/digitalradio/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
