John says he is a casual operator, ie not really interested in contests. I suggest any additional filters (apart from the General Coverage BPF ) are probably unnecessary for his style of operating. As I understand it, the filters are not there to determine the operating receive bandwidth, but are to protect the A/D from overload. This overload is unlikely in his operating environment, ie not contending with super - heavy QRM unless he has a very close neighbour who persistently creates that sort of signal. The K3 has a superb adjustable DSP filter that goes all the way down to 50Hz with little or no ringing plus the new APF for very small signal enhancement. Save the money and spend it on something else like the auto-atu which is superb.
My 2d - keep the change David G3UNA ----- Original Message ----- From: "Amateur Radio Operator N5GE" <[email protected]> To: <[email protected]> Sent: Wednesday, January 05, 2011 6:08 PM Subject: Re: [Elecraft] K3: advice about options to buy? > > Hello John, > > I would get the KTCX03-1 option instead of the 2.8 filter. You won't > notice the > difference between the filters. I have two K3's one with the 2.7 and one > with > the 2.8 and there is no real difference between the two. > > I would get the 500hz CW filter for starters. When you start working > serious DX > CW you can get one of the narrower filters for that. > > That's my opinion. I could be wrong. > > 73, > > Tom Childers > Radio Amateur N5GE > Licensed since 1976 > QCWA Life Member 35102 > ARRL Life Member > Retired Professional > C# Software developer > http://www.n5ge.net > > On Wed, 5 Jan 2011 01:11:44 -0800 (PST), VK7JB <[email protected]> > wrote: > >> >>Hello group, >> >>My mouse is hovering over the "Add to Cart" button for a K3/100 modular >>kit. >>I'd really value some candid advice about options before I commit. >> >>My situation: I'm a casual operator, data modes, SSB and CW. I rarely >>need >>to contend with crowded bands and don't currently work contests. I built >>a >>K2/100 which I love. I intend to get the General Coverage BPF module and >>the KAT3. >> >>My question: Given my situation, would I benefit from the extra >>investment >>in the KTCX03-1 high stability reference oscillator and/or the 2.8-2.7 >>filter swap option? >> >>About filters: which would you recommend I buy, given my casual-mode >>operation? I anticipate working more CW and less phone as I become more >>proficient in CW. >> >>Thanks in advance for any advice. I have had a look through the archives: >>there's a lot of info but I'm still uncertain. >> >>John >>VK7JB > > ______________________________________________________________ > 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 ______________________________________________________________ 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
