@PeteKnight
Thanks for the info, I will have a look at it, especialy at the part of recreating the waveforms.
Since yesterday I booked some progress.
I got the nodemcuv2-pilight/ESPiLight/examples Recieve and Receive_raw working.
With receive_raw.ino I could capture the signals from my remote and after pasting the captured signal data in the rc-switch raw data viewer it matches the pulses of my scoope output. It even converts the signal into the right pulse sequence 
Only the long low of the sync is not captured. The capture starts at the first low to high edge of the sync.
12:47:52.433 -> RAW signal: 1762 909 864 909 871 1783 1763 1785 882 892 1765 902 874 902 873 902 874 902 874 900 875 6786
12:47:52.443 -> string format: c:0111100011011111111112;p:1762,909,6786@
12:47:52.443 -> RAW signal: 895 880 891 883 1773 1777 1768 1781 886 888 884 889 890 5887
12:47:52.488 -> string format: c:00001111000002;p:895,1773,5887@
12:47:52.488 -> RAW signal: 1780 890 884 1774 1773 1777 1771 897 878 898 877 5898
12:47:52.488 -> string format: c:011000011112;p:1780,890,5898@
Now I have to figure out how to process and (re)send the data.
Henk