Operating Manual Vol 1 - ES Documentation

SMIQFront Panel3 MENU/VARIATIONRotary knobThe rotary knob moves the menu cursor over thepositions of a menu level to choose from or varies thevalue of a parameter. The variation is either effected insteps of one or in a step width that can be specified at will.See as wellChapter 2Section "BasicOperating Steps"Section"Sample Setting forFirst Users"4DATADATAInput external data signal for digital modulation.Input resistance 1 kΩ or 50 Ω,Trigger threshold can be set from -2.5 to+ 2.5V, max. ± 15 V, max. 40 mA.Output* data signal with operating modeinternal. Level: TTLSee as wellChapter 2,Section"Digital Modulation"BITCLOCKBITCLOCKInput* external clock-pulse signal forsynchronization of external data signal.Input resistance 1 kΩ or 50 Ω,Trigger threshold can be set from -2.5 to+ 2.5 V, max. ± 15 V, max. 40 mA.Output* clock-pulse signal with operatingmode internal. Level: TTLSYMBOLCLOCKSYMBOLCLOCKInput* external clock signal forsynchronization of the external datasignal with polyvalent modulation typeswith several bits per symbol.Input resistance 1 kΩ or 50 Ω,Trigger threshold can be set from -2.5 to+ 2.5V, max. ± 15 V, max. 40 mA.Output* symbol clock signal withoperating mode internal. Level TTL(BB-AM)I(BB-AM)IInput external modulation signal for I/Qmodulation and broadband-AM.Output* I-signal with operating modeinternal.Input/output resistance 50 Ω.Nominal voltage (I/Q): Us = 0.5 VNominal voltage (BB-AM): Us=0.25Vmax. permissible overvoltage: ± 5VSection"Vector Modulation"andSection"Broadband AM"1125.5555.03 2.7 E-7