The patterns simply the lead in to lock. Coming from a known position low in frequency... Nothing magical
On Mon, Feb 13, 2012 at 7:48 PM, Bob Camp <li...@rtty.us> wrote: > Hi > > Some numbers: > > C field tuning on a Rb like an FRS or an LPRO is about 2 to 6 ppb > DDS tuning on the "new" FE's is in the 1 to 10 ppm range (1000x larger) > DDS tuning on the "old" FE's was about 10% without mods, much wider with > minor tuning. > > Bob > > > > On Feb 13, 2012, at 2:16 PM, Erno Peres <erniepe...@aol.com> wrote: > > > > > Hi Chris, > > > > thanks for the info. My second problem is that the unit is in locked > position > > after powering up.... but after about 5-8min the freq goes down slowly > about 9.999.997.3 Hz and the lock ind level is still low..... > > Also noticed that during the sweep the max freq is 10.000.004 Hz and > the min freq is 9.999.750 Hz.. > > I assume that I have to open up the unit and try to re tune the 10Mhz > sweep osci...... let say from 9.999.900 to 10.000.100 at least. > > Any suggestion???? > > > > Thanks and regards, > > Ernie. > > > > > > > > > > -----Original Message----- > > From: Chris Albertson <albertson.ch...@gmail.com> > > To: Discussion of precise time and frequency measurement < > time-nuts@febo.com> > > Sent: Mon, Feb 13, 2012 7:32 pm > > Subject: Re: [time-nuts] FE-5680A Question > > > > > >> From the label I can see it requires +5 Volt but no info about the > > S232....... > > Can I adjust the " C " field from the DB9 connector....???? > > On the units that require 5V you can adjust the frequency using rs-232 > > ut only within a very small range around 10MHz. Some of the > > ocumentation applies to other types of this same model oscillator. > > Chris Albertson > > edondo Beach, California > > _______________________________________________ > > ime-nuts mailing list -- time-nuts@febo.com > > o unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > nd follow the instructions there. > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
