This rig hasn't been shut off for more than 5 minutes in months hihi. The operation environment is a bigger impact. There is air moving around via fans in here and the temp varies from 76 to 84F during the day with the AC cycling in the economy mode.
I am shooting for narrowing the filter down and trying to hear on signal not two I was hearing Hilo and Bolder on 5Mhz. On Thu, Sep 15, 2011 at 9:24 PM, Brian Lloyd <[email protected]> wrote: > On Thu, Sep 15, 2011 at 9:15 PM, Steven Hess <[email protected]> wrote: > > I have been going the General Set up tab DSS Clock Offset calibration > > against WWV and fine tuning my Flex-3000 using the Phase display as > outlined > > in the Knowledge base article > > http://kc.flexradio.com/KnowledgebaseArticle50175.aspx several > > times over the last many days. > > My Phase display never looks like the one illustrated on page 84 of the > > Flex-3000 owners manual v 2.0. It's always a distorted shape or distorted > > circle orbiting the center ring sometimes crossing over the inner ring. I > > can get the signal rotation nearly stopped and reversing pretty easily. I > > have it set where it's just going back and forth a bit reversing > directions > > in it's orbit right now. Am I supposed to be seeing a perfect circle > here? > > If so what am I doing wrong here? I have calibrated against the 5MHz and > > 10MHz WWV signals. > > If you want to get the phase rotation display closer to a dot, reduce > the filter width. 100Hz is plenty to zero-beat WWV. > > Also, try to get only WWV or WWVH. Don't use a frequency where you can > hear both. Their signals arrive with different phase values and as > fading makes one stronger and weaker than the other, you will get > sudden phase jumps. Try using CHU. > > > I have noticed this DDS Clock Offset number matching point changes > depending > > on the total environmental operating conditions. Support says it's not a > > problem 0.25Hz is plenty close hihi. > > You will get different values. It depends on if the reference > oscillator is warmed up or not. If the rig was cold and you just > started transmitting you will get a big change pretty quickly. I don't > try to do the DDS calibration until the rig has been on and warmed up > for 30 minutes so that everything has come to thermal equilibrium. > > -- > Brian Lloyd, WB6RQN/J79BPL > 3191 Western Dr. > Cameron Park, CA 95682 > [email protected] > +1.767.617.1365 (Dominica) > +1.916.877.5067 (USA) > -- ____________ Steven L Hess ARS KC6KGE DM05gd22 Skype user flamebait Cell 661 487 0357 (Facetime) Google Voice 661 769 6201 openSUSE Linux 11.3 and 11.4 _______________________________________________ FlexRadio Systems Mailing List [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
