Connectors That Begin With The Letter D - HP 8924E User Manual

Chapter 5, Description of Connectors

Connectors That Begin with the Letter D

Connectors That Begin with the Letter D
DC CURRENT MEAS
DUPLEX OUT
CAUTION: Connecting an RF source of >200 mW to this connector can permanently damage the
instrument.
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The current sense input is used in series with a dc supply and load to provide a 0 to
10 amp dc current meter.
Operating Considerations
• Dual-Banana Jack
• The dc-current meter is designed to measure positive current (the connector's polarity
is marked on the rear panel). Negative current of ≤10 amps will not damage the
instrument, but will cause inaccurate positive current measurements (due to magnetic
memory within the current-sensing element).
• To re-calibrate the current meter after negative current has been applied
1. Connect a 10-amp positive current.
2. Disconnect the current
3. Access the analog AF ANALYZER screen.
4. Select the DC Current Zero field to zero the meter.
The duplex output is an output for the RF Generator and Tracking Generator.
When testing CDMA mobile stations, it is important to enter an RF Level Offset
for the selected input and output ports. Refer to
in the HP 8924C Application Guide.
Operating Considerations
• BNC
• Output impedance = 50Ω
• The RF Generator's output is selected in the Output Port field. This field is
available on the CONFIGURE, RX TEST, DUPLEX TEST, RF GENERATOR, and
SPECTRUM ANALYZER screens.
"Calibrating the Test Set" chapter