4 ms·
What the 902 to 928 MHz spectrum looks like. All those blips in the waterfall are smart meters or some other IoT device. http://www.w6rz.net/33cm.png http://ww
by drmpeg 6y ago
What the 902 to 928 MHz spectrum looks like. All those blips in the waterfall are smart meters or some other IoT device.
http://www.w6rz.net/33cm.png http://www.w6rz.net/33cm.png
- imglorp 6y agoIs everybody narrowband in this spectrum? Why would they do that instead of spread/hopping or some such? What's going to happen to all these narrow guys when the band starts getting busy?
- drmpeg 6y agoIt's a mix of wideband and narrowband, but everything is frequency hopped. In the waterfall, the strong wideband bursts have a red colored center frequency. The narrowband bursts are just vertical lines.