DS3 Calibration
Document No. RF 002331D
3-6
DS3 High Settings
The following section describes the equipment and procedures required to
calibrate a DS3 High signal.
Review these procedures before attempting to calibrate DS3 High parameters.
Required Equipment
The following equipment is required to perform DS3 High calibration:
■
ASA 312 or DS3 test equipment with a signal output capacity up to 1.2 volts
peak
■
Digital oscilloscope
■
BNC T-connector
■
Two 2-ft., 75-ohm coaxial cables with male BNC connectors
Hardware Setup
The following describes how to attach cables to the measuring devices and how to
configure these devices for DS3 High calibration (refer to Figure 3-3).
To attach cables between the ASA 312 and the oscilloscope:
1. Make sure that the ASA 312 and oscilloscope are turned on.
2. Attach the BNC T-connector to the oscilloscope’s BNC input connector.
3. Attach one end of a 75 ohm BNC coaxial cable to the BNC T-connector and
the other end of the BNC cable to the ASA 312’s
DS3 TX
BNC connector.
(Refer to Figure 3-1.)
4. Attach one end of a 75 ohm BNC coaxial cable to the BNC T-connector and
the other end of the BNC cable to the ASA 312’s
DS3 RX
BNC connector.
