Monday, April 8, 2013

REE DRM @ 9630 kHz, 9 Apr 2013

So, for the record, the DRM transmission usually looks like this:


Meanwhile, the self-interference makes the SNR borderline decodeable.


Over on 11815 kHz:


We shall see if things clear up once the above goes off air.

And ... yesterday must have been a fluke.


But even after the broadcast ended, the interference remains.


A minute later it's gone.


There's just something about that transmitter.

Sunday, April 7, 2013

REE DRM @ 9630 kHz, 8 Apr 2013

Randomly decided to listen to 9620 kHz, and noticed that the DRM signal was not there. It came and went several times, lasting no longer than a 30 seconds each time, and blasting energy all over the place, until finally at a couple minutes past 01:00 UTC...


What happened to the splatter? This is amazing. Maybe tpreitzel can stop pasting the same damn whiny message for once.


I haven't seen SNR this good out of REE in maybe ever.


Close up of REE DRM actually not clobbering REE AM for once.

I should start paying attention to REE again. I noticed that the DRM broadcast on 11815 kHz went off air before 9630 kHz came on full time. Maybe trying to broadcast two DRM signals with their antenna configuration (maybe they just use the same physical antenna) was responsible for the nasty spectral mask.