> I wonder why they setup the radio that way....thats > a limiting factor when using programs like CW skimmer > which like Digipan decodes a 3Khz+ swath of CW stations > all at once......
It looks like DigiPan will run/display up to 5500 Hz - that doesn't seem to be a significant benefit above the K3's 4200 Hz limit. CW Skimmer requires separate I/Q sources in order to do broadband decoding and that's not available from the K3 audio interface (Line Out). I don't know the DAC clock rate is but if possible it would be nice to be able to sretch the response to 5500 or 6000 Hz for occasional use with AM/SWL/etc. However, I'd rather see per mode EQ and some extensions to the CAT interface first. 73, ... Joe, W4TV > -----Original Message----- > From: Thomas Tumino [mailto:[email protected]] > Sent: Thursday, January 29, 2009 4:35 PM > To: [email protected]; [email protected] > Subject: RE: [Elecraft] Impossible mission? USB with the > 13khz filter for PSK31on Digipan > > > > 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....thats > a limiting factor when using programs like CW skimmer > which like Digipan decodes a 3Khz+ swath of CW stations > all 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 > > > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
