SGSF delivers video signals to SECAM standard in a twelve-field sequence with the (disconnectible) chrominance synchronization signals in the field blanking interval. The genlock option permits insertion of test signals into a program signal. Moreover, it is possible to switch to a substitution signal in the case of program failure. In addition to the general-purpose test pattern with optional text insertion for source identification, the colour bars, crosshatch pattern, white, red, blue, green and black fields, a signal for chroma noise measurement and a test signal for chrominance-to-luminance delay, the following purely monochrome test signals are available: CCIR insertion test signals Multipulse, H sweep, sin x/x Squarewave signals (50 Hz, 15 kHz, 250 kHz, pulse-and-bar signal) Sawtooth and staircase signals Pluge and coring signals Black field and bounce signals Thus it is possible to use the well-known analyzers from Rohde & Schwarz for automatic SECAM measurements.