My KDSP2 seems to operate normally except for two problems. 1/ LOW PASS CW (widest bandwidth, 800Hz) No problems when increasing the center frequency up to 1.1 kHz - Spectogram confirms the filter setting. However, setting the center frequency to 1.2 kHz seems to actually lower the center frequency down to 1.0 kHz. Increasing further the center frequency set point results in LPASS being dispayed, but now the filter setting seems to be exactly the same as with 1.1 kHz center / 0.8 kHz bandwith. The pass band is not as broad as expected, the lower frequency is a few hundreds rather than a few tens of Hertz. RTTY (widest bandwidth, 2 kHz) Same problem as for CW. No problems when increasing the center frequency up to 2.3 kHz. However, setting the center frequency to 2.4 kHz seems to actually lower the center frequency down to 2.2 kHz. Increasing further the center frequency results in LPASS being dispayed, but now the filter setting seems to be exactly the same as with 2.3 kHz center / 2.0 kHz bandwidth. SSB Looks ok. 2/ BYPASS MODE The bypass mode can be set to DSP BYP using the menu. However, this does not actually bypass the KDSP2. In CW and RTTY, it looks like a change to a 2.3 kHz center / 2.0 kHz bandwidth filter (same as observed in RTTY LPASS mode). In SSB, it looks like a sharp filter with a 1000 Hz low cut and a 2000 Hz high cut. Any solution to this problem? Thanks in advance. Vincent, G0LMX K2 #5326 _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft
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