You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
RadioReference.com Forums
Since my last update of FLDIGI that I run with a dedicated RTLSDR and SpyVerter my waterfall is blank but I can see the software decoding in the yellow portion of the screen above it. Wondering if I am missing some driver or DLL file or something. I have tried un-installing and re-installing the software via Control Panel all to no avail. I use VB Cable to route the audio from the RTLSDR to FLDIGI. Long-time user of VB Cable and it works with the RTLSDR nicely with WxToImg for weather satellite decoding so that makes me believe it is a FLDIGI issue.