Dudley: Thanks for your thoughts.
I am really trying find a way to compare two clock standards against each other. An Rb standard and a Crystal standard with oven. Before I did anything, I did an auto calibrate as you suggested. I decide to take another approach. 1. I took the 16K filter and made it a 20hz filter 2. Set PSDR to DSB, snd set the display to panascope 3. Turned on the Rb/Wavetek (useing the Rb as the Wavetek's clock), I see a sine wave with a period of about a minute. 5. Turned off the Rb/Wavetek, turned on the Crystal Clock. In the scope, I see a sine wave with a period of about 4 seconds. Its interesting to watch the scope and listen to the beat as the crystal oven heats up. In the above cases, I am comparing each standard against the F1. 5K. I would like to figure out how to compare both signals directly other than with the Tek scope. My conclusion from this is that the Rb standard is closer to WWV than the Crystal Clock. I recognize that there is some Doppler shifting involved, so will check WWV and the RB standard in the morning and during the day. Indirectly, I have compared the two standards; but, I have not compared them directly. George K2CM ________________________________ From: [email protected] [[email protected]] on behalf of FlexRadio Support, Dudley Hurry [[email protected]] Sent: Monday, March 12, 2012 9:42 PM To: George Allen Cc: [email protected] Subject: Re: [FlexEdge] Phase I display George, I am not sure how you would do that, what mode are you in? To get the circle, you need to be in the DSB , double, so you are comparing USB against the LSB, and the beats between the two is what you see in the moving wiggly worm when you are tuning in WWV.. Maybe this way, on the internal, tune in WWV, let the auto calibrate tune the radio, then put the radio in DSB, the worm is very slow movement around the inter most circle... Now, feed the 10 mhz into the antenna, just to see how close, dead on frequency there will be a circle.. Again in DSB.. You could count the parts of cycle in the Scope mode too. That's the way I see it.. 73, Dudley WA5QPZ FlexRadio Systems _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
