Description Description 10HZ TO 10MHZ SIX BANDS AMPLITUDE FLATNESS OF +/-0.5%. OUTPUT LEVELS FROM +11dBm TO -90dBm 10dB AND 1dB STEPS OUTPUT IMPEDANCE IS 50 OHMS AND 75 OHMS UNBALANCED, 135 OHMS, 150 OHMS, AND 600 OHMS BALANCED View AllClose