The signal generator is designed for testing of radio communications equipment. Supplied in large numbers to the military, and built with no consideration to cost!
Racal Electronics was a multinational manufacturer and service provider in telecommunications, security, data communications, defence radar and avionics, marine and energy electronics, radio communications, and specialised electronics.
This little Feeltech FY6600, Chinese cheapy function generator can push out signals up to 60MHz in more different waveforms than you could ever want.
Full modulation facilities are available with four ranges of FM and one of AM. The AM and FM controls are completely independent. This allows them to be set at any level from either the internal two frequency oscillator or an external signal. An internal oscillator output is also provided.