Am still mussin' and fussin' with the F5K to get it setup for the next FMT. I have a Wavetek 5120 that I am using as my frequency standard, that I have calibrated to WWV. (will be using the Rubidium Standard shortly)
I find the station whose frequency I want to measure, center it on the F5K, put the F5K into AM mode, and set the filters to +/- 200HZ. I set the frequency of the 5120 to the approximate frequency of the station, connect my Tek TDS2004C scope to the powered speaker output of the F5K (either channel). I listen for zero beat in my earphones, and try to get a straight line on the scope. When I get a straight line on the scope, I am zero beat to the station that I am measuring. The thing that I am amazed at is that the F5k appears to pass all of the frequencies to the output jack! Look for me to now win that $1,000,000 prize in the next FMT. The other thing that I should report is that PSDR 2.022 is stable for long term receive applications. I have had my F5K receiving for three days continuous without issue. Finally, while using WWV as my standard to calibrate to, some nearby shortwave broadcasters are "not quite on" frequency. Some are off by a few hz here and there. As a part of my measuring system, I am very impressed with the F5k! George K2CM _______________________________________________ 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.
