REE DRM @ 9630 kHz, 15 Jul 2012

Okay, here we go. You'll see that I'm trying my luck with manual gain of 73 dB, which gets about -60 dB input power in Dream. Still little in the way of success.

There does happen to be a carrier at 9625 kHz. Could be CBC Radio Nord Quebec out of Sackville, could be Radio Fides out of Bolivia. Impossible to tell. Carrier's -110 dBm at most, and it appears that the lower sideband is under the noise floor, at -130 dBm.

There is also a carrier at 9620 kHz, which is REE in double sideband, broadcast from Noblejas Spain. Crowded band.

A neat thing the Excalibur can do is demod two targets in close proximity to each other. So I'm listening to what pieces of REE 9630 kHz I can get via Dream, and REE on 9620 kHz via the receiver GUI. It's a simulcast.

Subjectively speaking, you need at least half of the OFDM sub-carriers to be demod-able over the interleaving period in order to get any kind of audio. From the waterfall it's obvious that isn't happening.

There is still a 9630 kHz carrier, which is probably Radio Aparecida out of Brazil on 10 kW. REE DRM is itself 30 kW out of Costa Rica. Judging by the level of the carrier, the low frequency audio content is probably about the same power as the DRM signal, but it's all a wash. The transmission has an average SNR of only about 10 dB.