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REAR PANEL OUTPUTS
Frequency Reference Input/Output
To lock the spectrum analyzer to an external frequency reference, set the FREQ REFERENCE switch to EXT.
Analyzer performance will be degraded unless frequency reference phase noise and spurious signals are < - 140
the spectrum analyzer internal frequency reference, set the FREQ REFERENCE switch to INT
Frequency Reference
Input/Output
EXT INT
HP-IB Input Output Connector
The Hewlett-Packard Interface Bus allows remote operation of the analyzer as well as input and output of mea-
surement data. See Section II of this manual.
IF and Video Connectors
The IF and Video connectors allow the 85650A Quasi-Peak Adapter to be used with the analyzer for EM1
measurements
When the Quasi-Peak Adapter is disconnected from the analyzer, make sure the IF INP
connector connects to the IF OUT connector with one short BNC cable, and VIDEO
INP connector connects to the VIDEO OUT connector with the other short BNC cable.
Failure to connect the BNC cables will result in a loss of signal.
8 Manual Operation
Input/Output
External Frequency Reference Requirements:
Frequency:
5 MHz & 50 Hz
or
10 MHz ? 100 Hz
Power:
0 to 10 dBm
Input Impedance:
Internal Frequency Reference Characteristics.
Frequency: 10 MHz
P o w e r : 0 dBm
O u t p u t impedance: 5OQ
NOTE
GENERAL INFORMATION
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