Hi I forget exactly which programs do which, but there are some free spectrum analysis programs that will get you way into the sub-Hz resolution with an <=8 KHz sample rate.
Bob On Mar 21, 2011, at 5:44 PM, paul swed wrote: > It can actually be calculated and it is in Berts tables. > But last night I used spectrum lab and and could see the difference between > usb worse case.5 Hz and LSB .3Hz. It was very stable no drifting at all > while tuned to wwvb. But spectrum lab was not really optimized to give me > better detail. Sub Hz res. Need to figure out how you would do that actually > and maybe you simply can't. > Regards > Paul > WB8TSL > > On Mon, Mar 21, 2011 at 5:29 PM, Burt I. Weiner <[email protected]> wrote: > >> Bert, >> >> This looks very interesting. Have you been able to determine the actual >> error between the receiver's "tuned to" frequency and the 1850.000.00 Hz >> audio tone error out of the receivers audio for upper and lower SSB? This >> could make a good group project kit. >> >> Burt, K6OQK >> >> >> Date: Mon, 21 Mar 2011 10:11:04 -0700 (PDT) >>> From: "Bert, VE2ZAZ" <[email protected]> >>> To: [email protected] >>> Subject: Re: [time-nuts] HP 3586A/B/C entirely referenced to 10MHz: A >>> solution >>> Message-ID: <[email protected]> >>> Content-Type: text/plain; charset=us-ascii >>> >>> Hello Everyone, >>> >>> I have spent the last few weeks modifying the HP 3586 Selective Level >>> Meter. The >>> intent was to modify the unit and reference the SSB product detector stage >>> to >>> the internal reference. This would make the entire SLM locked to the 10MHz >>> reference, whether internal or externally fed. >>> >>> I have completed the modification with satisfactory results. I use a >>> DDS-Based >>> Function Generator 16-pin IC and a small 8-pin PIC micro. For more >>> detail, >>> visit my website at http://ve2zaz.net/HP3586_AD5962/HP3586_AD5962.htm . >>> >>> This has been a very good exercise from a DDS perspective and I have >>> learned a >>> lot on the topic. I would be interested in hearing from those who proceed >>> with >>> the mod. >>> >>> Thanks, >>> >>> Bert, VE2ZAZ >>> >> >> Burt I. Weiner Associates >> Broadcast Technical Services >> Glendale, California U.S.A. >> [email protected] >> www.biwa.cc >> K6OQK >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
