Why not "resample" the 192kHz. input down to 48kHz. on the fly as a button selectable option for receive, while leaving the I/O stream intact to preserve the lower latency for transmit. Ned, K1NJ
Kirb Nesbitt <[EMAIL PROTECTED]> wrote: Charles, while I fully understand the intent behind sharpening up the filters for battle in contests etc., I've found that in practice the radio continues to exhibit excellent filter response using DSP buffer and sampling rate settings which, while not absolutely optimized from a filter performance perspective, provide low latency operation equal in "feel" to my other more traditional radios. For example, your dsp/sampling combo yield an approximate latency of 85 ms! Utilizing the faster sampling rates of the FA-66 (192000), with a sub-optimal dsp buffer size of 2048 equates to a total latency of 10.7 ms. Obviously for me the perfectly in-step key-sync and change-over timing out-weighs the ultimate shape-factor tweak (2048 vs. 4096). Just another reason to like the flexibility built into this box! 73, Kirb - VE6IV -- -- _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ --------------------------------- Looking for earth-friendly autos? Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/attachments/20070220/4b3ecd6e/attachment.html _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com/ FlexRadio Knowledge Base: http://kb.flex-radio.com/
