It transmitted from 07:30~ to 18:00~.The transmission is not continous,it transmits for 10-20 minutes then stops for 10-20 minutes before transmitting again
Different versions of the signal 
The signal seems to have different versions and switch between them randomly
CTCSS and bursts at the beginning and end of the transmission
It sends a burst at the beginning and end. I lost the recording of beginning burst but i still have recording for end burst.
Has CTCSS 74.4
I call it bird signal because it somewhat reminds me of birds