HP 8901B Operation And Calibration Manual page 19

Model 8901B General Information
Down Converter.
The HP 11793A Down Converter, when used with a suitable local oscillator, extends
the useful range of the Modulation Analyzer into the microwave region. Provisions have been made in
the Modulation Analyzer to account for the frequency of the local oscillator and provide direct display
of the frequency of the microwave input signal.
Test Source.
The H P 11715A AMFM Test Source produces extremely linear AM and
FM
at
high rates as well as a low-noise CW signal. This source is required for performance testing and
adjusting the Modulation Analyzer; however, it is an excellent stand-alone instrument for generating
very low-distortion FM in the broadcast band.
Service Accessory Kit.
A
Service Accessory Kit (HP 08901-60287) is available which contains
accessories (such as extender boards and cables) useful in servicing the Modulation Analyzer.
Front-to-Rear-Panel Connectors Retrofit Kit (Option
001). This kit contains all the necessary
components and full instructions for converting front-panel connections to rear-panel connections.
Order HP part number 08901-60282.
Rear-to-Front-Panel Connectors Retrofit Kit (Standard).
This kit contains a l l the necessary
components and full instructions for converting Option 001 instruments with rear-panel connections
to instruments with front-panel connections. Order
HP
part number 08901-60283.
High-Stability, Internal-Reference Retrofit Kit (Option
002). This kit contains all the necessary
components and full instructions for installation of the high-stability, internal-reference oscillator.
Order HP part number 08901-60281.
Rear-Panel Local Oscillator Connections Retrofit Kit (Option
003). This kit contains all the
necessary components and full instructions for installation of rear-panel local oscillator connections.
Order HP part number 08901-60280. (These connections are already included in all Option 030
Series instruments.)
Conversion to
400
Hz Line Operation.
Modulation Analyzers not equipped to operate at line power
frequencies greater than 66 Hz may be converted to operate at line frequencies from 48
to 440
Hz.
However, operation at line frequencies greater than 66 Hz will be restricted to line voltages less than
or equal
to
126.5 Vac. To convert to 400 Hz operation, order H P part number 08901-60095. After
installation, performance will be identical to the H P 8901B Option 004.
Mechanical Equipment Available
The following kits might have been ordered and received with the Modulation Analyzer as options. If
they were not ordered with the original shipment and are now desired, they can be ordered from the
nearest Hewlett-Packard office using the appropriate part number.
Front-Handle Kit (Option
907). Ease of handling is increased with the front-panel handles. Order H P
part number 5061-9690 for the basic kit and 2190-0048 for lockwashers (8 required).
Rack-Flange Kit (Option
908). The Modulation Analyzer can be solidly mounted to the instrument
rack using the flange kit. Order HP part number 5061-9678.
Rack-Flange and Front-Handle Combination Kit (Option
909). This is not a front-handle kit and
a rack-flange kit packaged together; it is composed of a unique part which combines both functions.
Order HP part number 5061-9684 for the basic kit and 2190-9609 for lockwashers (8 required).
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