On 1/29/2016 8:40 PM, Bob McGraw K4TAX wrote:
Using the K3 Utility, in checking the Filter Config list, while I do have the 6.0 kHz filter installed, I must select the 2.7 kHz or 2.8 kHz for CW and SSB transmit.
> > Then from the CONFIG menu ESSB I can select up to 4.0 kHz bandwidth. The K3 and K3S use the AM TX filter for ESSB wider than 2.8 KHz.
Receive BW on AM will go to 5.0 kHz and on SSB 4.0 kHz.
Receive audio bandwidth will never go beyond 4.2 KHz as there is a fixed, audio lowpass filter following the digital to analog converter. In any case, the true audio bandwidth is FC +/- BW/2 for all modes. Even in AM the maximum value for BW is 4.00 (4 KHz) representing a recovered audio bandwidth of 0 - 4000 Hz or 200 - 4200 Hz. If FC (shift) is lower than 2.00, the actual bandwidth will be less than 4 KHz even when BW = 4.00 due to the formula above (FC +/- BW/2). 73, ... Joe, W4TV ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
