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CH3 – Setup 91
CH4 – Setup 127
Flatness
Adjustments
CH1 – Setup 20
CH2 – Setup 56
CH3 – Setup 92
CH4 – Setup 128
CH1 – Setup 21
CH2 – Setup 57
CH3 – Setup 93
CH4 – Setup 129
Dual banana to BNC adapter
Preparation:
1. Configure the DMM as follows:
Function:
Range:
2. Connect the 2074 Channel 1 output to the DMM input.
Terminate the 2074 output at the DMM input with the, 50 Ω
Feed through termination
3. Configure the 2074 as follows:
CAL:NUM 19, 55, 91 and 127 – respectively
Adjustment:
4. Adjust CAL:VAL for DMM reading of 353.5 mV ±3 mV
The flatness adjustments assure that the flatness of the amplifier is
within the specified range. Use this procedure if you suspect that the
flatness is an issue.
1 MHz Amplitude
Equipment: 50 Ω, 20 dB Feed through termination, Oscilloscope
Preparation:
1. Configure the Oscilloscope as follows:
Input Impedance: 50 Ω
Range:
2. Connect the 2074 Channel 1 output to the Oscilloscope input.
Terminate the 2074 output at the Oscilloscope input with the, 50
Ω, 20 dB Feed through termination
3. Configure the 2074 as follows:
CAL:NUM 20, 56, 92 and 128 – respectively
Adjustment:
4. Adjust the Fine Amplitude of the Oscilloscope to get the signal
of 6 divisions on the screen.
20 MHz Amplitude
Equipment: 50 Ω, 20 dB Feed through termination, Oscilloscope
Preparation:
1. Configure the Oscilloscope as follows:
Input Impedance: 50 Ω
Range:
2. Connect the 2074 Channel 1 output to the Oscilloscope input.
Terminate the 2074 output at the Oscilloscope input with the, 50
Ω, 20 dB Feed through termination
3. Configure the 2074 as follows:
Adjustments and Firmware Update
Channels 1, 2, 3 & 4 Adjustments
ACV
1 V
100 mV
100 mV
7
7-15
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