Interesting because its going to be very hard for spec lab to do it. I experimented tonight and the results were not good. What I can say is the 3586 is stable to spec labs resolution.
On Mon, Mar 21, 2011 at 7:43 PM, Bob Camp <[email protected]> wrote: > 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. > _______________________________________________ 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.
