Rohde Schwarz / Signal Generator / SMA100A/B22/B103 
Frequency options from 9 kHz to 3 GHz/6 GHz
Very low SSB phase noise of typ. -141 dBc (at 1 GHz, 20 kHz offset, 1 Hz measurem
ent bandwidth) with option
Nonharmonics <-96 dBc (f < 750 MHz, carrier offset > 10 kHz) with option
High output power of up to +18 dBm (+28 dBm in overrange)
Emulation of legacy instruments
Electronic attenuator with built-in overvoltage protection over entire frequency
 range