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HP 8590 E & L Series Spectrum Analyzers and HP 8591C Cable TV ...

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4. Creating <strong>and</strong> Using Downloadable Programs<br />

What You’ll Learn in This Chapter . . . . . . . . . . . . . . . . . . . . . . 4-l<br />

WhatisaDLP? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-l<br />

WhyUseaDLP?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-l<br />

Creating a DLP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2<br />

‘Ib Use a User-Defined Function within a DLP . . . . . . . . . . . . . . . . 4-3<br />

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3<br />

To Use a User-Defined Variable within a DLP . . . . . . . . . . . . . . . . 4-4<br />

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4<br />

To Use a User-Defined Trace within a DLP . . . . . . . . . . . . . . . . . . 4-5<br />

Example . . . . . . . 4-5<br />

To Enter Values’into a*DLP 1 : 1 1 1 1 1 1 1 : 1 1 1 1 1 1 1 : . . . . . . . 4-6<br />

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6<br />

To Enter Values into a DLP by Using a Softkey . . . . . . . . . . . . . . . 4-6<br />

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6<br />

To Create a Modular DLP . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7<br />

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7<br />

Executing a DLP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9<br />

To Execute a DLP by Using a Softkey . . . . . . . . . . . . . . . . . . . . 4-9<br />

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9<br />

To Execute the DLP within a Program . . . . . . . . . . . . . . . . . . . 4-9<br />

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9<br />

StoringDLPsonaRAMCard . . . . . . . . . . . . . . . . . . . . . . . . . 4-10<br />

‘IbStoreDLPsonaRAMCard . . . . . . . . . . . . . . . . . . . . . . . 4-10<br />

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10<br />

To Load DLPs from a Memory Card into Analyzer Memory . . . . . . . . . . 4-11<br />

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11<br />

Determining the Amount of Memory Needed for a DLP . . . . . . . . . . . . 4-12<br />

‘lb Determine Available Analyzer Memory . . . . . . . . . . . . . . . . . . 4-12<br />

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12<br />

To Determine the Amount of Space on a RAM Card . . . . . . . . . . . . . 4-12<br />

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13<br />

To Delete a DLP from <strong>Spectrum</strong> Analyzer Memory . . . . . . . . . . . . . . 4-14<br />

Example . . . . . . . . . . . . . . . 4-14<br />

To Erase the DLP’frbm a RAM’&rd : : : : : : . . . . . . . . . . . . . . . 4-14<br />

Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14<br />

Using the DLP Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15<br />

To Connect the External Keyboard to the <strong>Spectrum</strong> Analyzer . . . . . . . . . 4-15<br />

‘lb Access the DLP Editor . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16<br />

‘IbCreateaDLP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17<br />

To Modify the DLP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18<br />

To Modify a Catalog Item . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19<br />

DLP Programming Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . 4-20<br />

To Make the DLP More Readable . . . . . . . . . . . . . . . . . . . . . . 4-20<br />

ToFindProblemsinaDLP . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

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