Strange Data Communications on 154.46MHz

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Published 2016-06-30

While using my USB RTL3832 SDR I discovered a curious transmission on 154.46MHz. Someone helped me identify that frequency according to the FCC's Website, and it belongs to the power company. Must be some sort of Telemetry data about power usage and grid conditions. If anyone knows what codec/protocol is used for this kind of information, I'd be quite interested to know.

By the way, the reciever I used was a $8-$10 USB TV+FM Radio Tuner stick. They can tune all modulation types (FM, Narrow FM, AM, LSB, etc) from 24MHz nearly all the way to 1800MHz. The default 3in antenna could pick up NOAA Weather radio 130 miles away. I am seriously impressed by that cheap little thing. Not linking a specific one, but search Amazon for "RTL2832 DVB+DAB+FM USB Tuner". You'l see what I mean, sticks with an antenna to plug in. You can also use an external antenna. If you're in a country that broadcasts HDTV as DVB (Pretty much anywhere but the US and Canada) it can also watch Digital OTA Broadcast Television.

And yes, I know, the video editor f***ed up rendering the waveform. I have no idea why.

If you wish to use this video for something, CONTACT ME.
I will likely say yes, but I want to know if someone is using it.

All Comments (2)

@____.__._.._ 2 years ago

Hey man i found your channel through comments on US CSB videos. I happen also to like telemetry and stuff, and I wonder, if you came up with something? In my country we have VHF powergrid management trunking, opening or closing relays, lines and stuff, but the system is slowly moving to digital TETRA.