・Low SSB phase noise of typ. -128 dBc (20 kHz carrier offset, 1 GHz carrier frequency, 1 Hz measurement bandwidth)・Very low SSB phase noise even at low output frequencies (because a new DDS synthesizer is used from 9 kHz to23.4375 MHz instead of a downconverter)・Nonharmonics suppression of typ. -85 dBc (>10 kHz carrier offset, carrier frequency 10 MHz carrier offset, 1 GHz carrier frequency, 1 Hz measurement bandwidth)・Harmonics of typ. ・30 dBc at the maximum specified output power of +18 dBm… for high measurement accuracy in a wide variety of applications