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*To*: linrad@xxxxxxxxxxxxxxxxxxxxxx*Subject*: Re: [linrad] SSB Parameters*From*: w3sz <w3sz@xxxxxxxxxxx>*Date*: Mon, 27 Sep 2004 22:55:57 -0400*In-reply-to*: <CFEIKLJOPPJLBFPEJHKOCEPJDNAA.leif.asbrink@xxxxxxxxxxxxxxxx>*References*: <CFEIKLJOPPJLBFPEJHKOCEPJDNAA.leif.asbrink@xxxxxxxxxxxxxxxx>*Reply-to*: linrad@xxxxxxxxxxxxxxxxxxxxxx*Sender*: owner-linrad@xxxxxxxxxxxxxxxxxxxxxx*User-agent*: Opera M2/7.51 (Win32, build 3798)

Hello, all, Here are my SSB parameters: First FFT bandwidth (Hz) [83] First FFT window (power of sin) [2] First forward FFT version [0] First FFT storage time (s) [1] First FFT amplitude [1000] Enable second FFT [1] First backward FFT version [0] Sellim maxlevel [6000] First backward FFT att. N [6] Second FFT bandwidth factor in powers of 2 [2] Second FFT window (power of sin) [0] Second forward FFT version [0] Second forward FFT att. N [7] Second FFT storage time (s) [5] Enable AFC/SPUR/DECODE [1] AFC lock range Hz [150] AFC max drift Hz/minute [100] Enable Morse decoding [0] Max no of spurs to cancel [100] Spur timeconstant (0.1sek) [5] First mixer bandwidth reduction in powers of 2 [4] First mixer no of channels [1] Baseband storage time (s) [200] Output delay margin (0.1sek) [5] Output sampling speed (Hz) [10000] Default output mode [1] Audio expander exponent [3] A/D speed [96000] Check [1110107] Change only between brackets. If file has errors, Linrad will ignore file and prompt for a complete set of new parameters linrad-01.21 -----end of SSB parameters Here are my wcw parameters: First FFT bandwidth (Hz) [100] First FFT window (power of sin) [3] First forward FFT version [2] First FFT storage time (s) [20] First FFT amplitude [1000] Enable second FFT [1] First backward FFT version [1] Sellim maxlevel [6000] First backward FFT att. N [6] Second FFT bandwidth factor in powers of 2 [4] Second FFT window (power of sin) [4] Second forward FFT version [2] Second forward FFT att. N [10] Second FFT storage time (s) [15] Enable AFC/SPUR/DECODE [1] AFC lock range Hz [150] AFC max drift Hz/minute [100] Enable Morse decoding [0] Max no of spurs to cancel [100] Spur timeconstant (0.1sek) [5] First mixer bandwidth reduction in powers of 2 [4] First mixer no of channels [1] Baseband storage time (s) [150] Output delay margin (0.1sek) [5] Output sampling speed (Hz) [6000] Default output mode [1] Audio expander exponent [3] A/D speed [96000] Check [1110107] Change only between brackets. If file has errors, Linrad will ignore file and prompt for a complete set of new parameters linrad-01.25 With the SSB parameters I get a delay on the order of 0.5-0.7 seconds or less. I am not sure of the delay with the CW parameters listed above, as I didn't check it today, but generally I have had delays of 2-5 seconds [which are not a problem for my purposes]. I post them with no representation as to their optimization. Rather, they are being posted to provide an object for criticism, and to provide a framework for the discussion of the tradeoffs and consequences of specific parameter choices. These are running on this system: CPU:: Pentium 3 CPU Speed:: 1 GHz RAM in MB:: 770 MB SOUND CARD:: M-Audio Delta44 SOUND DRIVER:: OSS/Linux OSS 3.99.1g ADDITIONAL CARD1:: SoundBlaster PCI VIDEO CARD:: ATI Radeon 7000 VIDEO DRIVER:: Rage 128 LINUX DISTRIBUTION:: Red Hat LINUX VERSION:: 8.0 KERNEL VERSION:: 2.4.20-28.8 GCC VERSION:: 3.2 20020903 SVGALIB VERSION:: 1.9.19 LINRAD VERSION:: 01.25 Hope that is of some interest, and 73 Roger Rehr W3SZ -- Roger Rehr W3SZ http://www.qsl.net/w3szLINRADDARNIL

**Follow-Ups**:**RE: [linrad] SSB Parameters***From:*Leif Åsbrink

**References**:**RE: [linrad] SSB Parameters***From:*Leif Åsbrink

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