Strange Signal

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EMI(RFI) Thermostat - Central Heating (previous title - Strange Signal)
Waterfall of the Signal.jpg
Frequencies 27 MHz,130 MHz,446 MHz
Frequency Range 27 MHz - 446 MHz
Mode AM
Modulation ?
Bandwidth 5 kHz
Location Somewhere in my House
Short Description I found out that it was my old thermostat for my central heating. As soon as i pressed a button the signal changed. Replaced it with a new one. Now it is gone.
I/Q Raw Recording Download file
Audio Sample

I can only receive this Signal inside my House. As soon as i leave my yard i am not able to receive it anymore.

Almost a 100% chance that this is EMIElectromagnetic interference.