> Unfortunately, despite specifically enabling the KFL3B-FM > 13Khz filter in USB mode, I cannot get 13Khz of bandwidth in > USB receive. As a matter of fact, I cannot seem to get much > more then 4Khz of receive in USB receive mode.
You will not see more than 4 KHz of audio in any mode. The DSP includes a "brickwall" cut-off at 4200 Hz in SSB, DATA, AM and FM with a lower (2800 Hz) cutoff in CW. 73, ... Joe, W4TV Joe,I wonder why they setup the radio that way....thatsa limiting factor when using programs like CW skimmerwhich like Digipan decodes a 3Khz+ swath of CW stationsall at once......73-Tom-N2YTF > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Thomas Tumino > Sent: Thursday, January 29, 2009 12:59 PM > To: [email protected] > Subject: [Elecraft] Impossible mission? USB with the 13khz > filter for PSK31on Digipan > > > Hi there, > > I am running my K3 with Digipan computer software on PSK 31. > I also have a full complement of 5 filters in the K3, with > the widest being the KFL3B-FM 13Khz filter. > > Because Digipan can receive many PSK signals at once > (Multichannel Window), I would like to set my K3 to receive > USB through the 13Khz filter. > > Unfortunately, despite specifically enabling the KFL3B-FM > 13Khz filter in USB mode, I cannot get 13Khz of bandwidth in > USB receive. As a matter of fact, I cannot seem to get much > more then 4Khz of receive in USB receive mode. I can get the > XFIL display to tell me I am receiving through the 13Khz > filter, but only about 4Khz of audio will pass through > (perhaps the DSP??). > > Am I missing something here, or is this just an oversight in > firmware design? Multichannel simultaneous receive of a > massive chunk of bandwidth is a great feature of Digipan that > I would love to take advantage of with my K3. > > Does someone know how to receive USB at a 13Khz bandwidth with the K3? > > 73, > Tom-N2YTF >
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