Is anyone else picking up a DMR base station beacon on these channels? Color Code 1, in the Long Beach area? So far, no voice traffic, just the beacon every 30 or so seconds.... both channels are identical in timing and data content.
I hear it and the .5375 signal is about 12dB stronger than the .5625 signal. They appear to be identical and I think the .5625 might be Intermod or something unintentional. I think it might be SCADA or some other kind of data transmission.
Also don't discount an IF image because it could be an amateur radio hot spot around 446.
I've heard it on enough receivers here (both SDR and conventional, at home and away from home) to rule out IF images; it's a real signal.
Road trip?I'm hearing them right now, they're quite strong (-80dBm on 467.5375 MHz, -103dBm on 467.5625 MHz) with slow but significant variation. Just a beacon, no voice or anything. Both key up at the same time and send the same data. Nothing around it to indicate intermod.
I'm hearing them right now, they're quite strong (-80dBm on 467.5375 MHz, -103dBm on 467.5625 MHz) with slow but significant variation. Just a beacon, no voice or anything. Both key up at the same time and send the same data. Nothing around it to indicate intermod.
Big ship, two repeaters, bow and stern? It turns, they vary. They are linked via IPSC?About two days ago, I was receiving it again; 467.5625 stronger than 467.5375 this time. Could it be ship-borne? There's a really wide variation in signal strength over long periods of time, so I would suspect it's not a stationary transmitter at all. I recall hearing it in Santa Paula at one point (2018ish) as well.
Hopefully when the machine shop reopens, I'll be able to finish up my RDF setup.