YouTube recommended a video to me and by chance, I clicked on it and saw a Radart 2424 Signal Generator on the video, which I possess. However, I do not have a user manual for it and I have always struggled a bit to use it. I don't even know the specs of the unit. So, I thought I would ask the creator of the video and Patrick came back saying that it is not a Radart, it is a Farnell PSG-1000. Seem like one of them is the clone of the other!

A web search revealed the service manual for it. Seem like Farnell one is a lot popular than the Radart one. This chance discovery after several months of trying for information has given me a bunch of new information about a test equipment that is sitting on my desk for a long time.