10 Mhz Ref Input; 10 Mhz Ref Output - HP 8920A User Manual

10 MHz REF INPUT

NOTE: The reference output frequency is always 10 MHz, independent of the selected input reference
frequency.

10 MHz REF OUTPUT

NOTE: The reference output frequency is always 10 MHz, independent of the selected input reference
frequency.
This connection allows you to input an external reference.
Operating Considerations
Input frequency = 1, 2, 5, or 10 MHz
Input level >0.15 V rms
Input impedance approximately 50
When a valid signal is applied to the 10 MHz REF INPUT, the Test Set
automatically switches from internal to external reference.
This signal is used as a reference for, and directly affects, these functions:
RF Generator Frequency (including the Tracking Generator)
RF Frequency Counter
AF Frequency Counter
RF Analyzer Tune Frequency
Spectrum Analyzer Center Frequency
AF Generators 1 and 2, and the decoder's frequency counter, are not affected
using an external reference; they use their own reference.
Electrostatic discharges to the 10 MHz REF INPUT port of 0.5 kV or above may
cause degradation of performance requiring operator intervention.
This connector furnishes a 10 MHz reference for external instruments.
Operating Considerations
Waveform = sinewave
Output frequency = 10 MHz
Output level >0.5 V rms
Output impedance approximately 50
Chapter 24, Connector, Key, and Knob Descriptions
Ω
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Ω
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Connector Descriptions
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