There's no working radar gauge in the Rafale and no F16.gau in the airplane as downloaded, I installed it into a clean folder and looked it over.  There are only two files installed in the gauges folder, rafale.CAB and rafaleUPDATE.cab.

There's no working radar in either of those as far as I can tell.  But the panel.cfg references an F16 gauge that is not in the install package.

I'd really like this to replace the fake, unrealistic one in the another company F16 and get a measure of authenticity.

I'm hoping, of course, that this kind of makes an attempt to simulate an APG-66 type radar.  I looks like it does from your video.  Certainly better than the joke in the another company F16.