Simprop SAM transmitter, need manual
 

Accidentally found in the attic, everything works, but there is no manual and no information on the Internet (or looking badly).
A request to colleagues, maybe someone can find a user manual .....

Here I have such a transmitter

Problems with mixes :(https://cimg1.ibsrv.net/gimg/www.rcu...17c108d74a.jpg