Radio Blasting System can be hacked with a combination of LimeSDR/RTL-SDR + URH. The code uses a standard frequency for commercial consumer-grade RF devices. It is encoded as 1110-preambles encoded as 1000 preambles. No ACK packet from the receiving unit. No MSK/FSK/GMSK or other strange modulations Yet another classic 433MHZ Shifting Key Modulation with On-Off Key. No Rolling-Code, no MSK or GMSK.”]
Source: https://securityaffairs.co/wordpress/89418/hacking/hacking-radio-blasting-systems.html