Cliff, The K3 defaults to a 400 Hz bandwidth when selecting DATA A mode. unless you have previously set some other width.
I am not sure about the negative bandwidth values you have indicated, but I am going to assume that those are just "dashes" and not negative signs. I suggest you look at the width and shift (or HiCut and LoCut) to obtain the filter bandwidth that you desire for digital modes. When working with a waterfall display, you may want a wide bandwidth, but if you are tuning for a single signal with the K3 VFO knob, you will want a more narrow bandwidth. 73, Don W3FPR On 11/13/2012 7:04 PM, Clifford Hynds wrote: > Hope someone has an answer, > > I am a recent owner of the K3 having just bought a K3, P3 and KPA500 > station from another ham. > > Probably you would have to be a regular user of the JT65 mode to notice but > I seem to get little or no output when I am below about -500hz or so on the > waterfall on JT65HFand nothing really at -1000Hz, fine from there up. > > Probably affect other data modes also ? > > I am using line in/out on the K3 and DATA mode so no equalisation, > > Had no problems with other rigs FT847,FT817 and TS950SDX had no problems > with the low end. > > Could be as simple as increasing the input capacitor for the line audio or > as the audio is controlled by the DSP perhaps an upgraded DSP unit. The K3 > is in the < 1000 Serial numbers 718 if i remember not in front of it at the > moment. > > Hope someone has an answer, > thanks > Cliff VK2CCJ > ______________________________________________________________ > 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
