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Chapter 10, Signaling Encoder (AF Generator 2)
Using the AMPS-TACS, NAMPS-NTACS Encoder
Using the AMPS-TACS, NAMPS-NTACS Encoder
Using This Information
This screen is used to create various types of cellular telephone data streams.
Selecting the
Standards field displays a list of the supported signaling formats.
The theory and applications of cellular telephone systems are beyond the scope of
this manual. The field descriptions describe their basic functions, and are not
intended to be used as tutorial information.
If additional information is needed, refer to the many technical manuals available
on the subject of cellular telephones.
Automated Test Software
Hewlett-Packard offers software packages to test your cellular phone in a fraction
of the time normally required for manual testing. You can choose any
combination of tests, from full parametric testing, to a single test. The software is
shipped on a memory card that inserts directly into your Test Set, and it comes
with complete documentation and a blank SRAM memory card for storing your
test procedures and test data.
Encoder/Decoder Interaction
The AMPS-TACS/NAMPS-NTACS Encoder acts like a base station transmitter,
creating Forward Control and Voice channel information (FOCC/FVC). The
AMPS-NAMPS-TACS/NTACS Decoder acts like a base station receiver,
analyzing Reverse Control and Voice channel signals (RECC/RVC).
The decoder uses the encoder’s
Data Rate setting to specify how fast the
incoming message is being sent. Therefore, when using the decoder, you must
first specify the data rate in the encoder.
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