Aim-TTI TGF3162 Kurzanleitung Seite 16

•
Press the soft-key labelled Load again to change the load impedance to High-z
(high impedance).
Note that the default load impedance is 50 Ohms, but that this could be changed to any impedance
between 50 and 10,000 Ohms. Levels are calculated based upon this impedance.
Successive presses of the Load key alternates between a numeric value and High-z.
Note that the amplitude readout increases to 2 volts pk-pk.
•
Press the soft-key labelled Load to return the load impedance to 50 Ohms.
Changing the Range
•
Press the soft-key labelled range
•
Press the soft-key labelled range again to change the range from Auto to Hold.
Auto mode auto-ranges in 6dB attenuator steps (i.e. 'range' maximums of 10Vpp, 5Vpp, 2.5Vpp, etc., into
50Ω), with the amplitude vernier range limited to 6dB to maintain waveform quality.
Selecting Hold mode disables auto-ranging; the attenuator setting is fixed and the amplitude vernier range
is no longer limited.
With range set to Auto the amplitude and attenuators will switch automatically and optimal performance
will be realised. With range set to Hold a fixed attenuator setting is used for all amplitude settings.
15