Afgen2 To - HP 8920A User Manual

AFGen2 To

Audio Out
Bursts
Code
Data Rate
This audio frequency generator control contains two fields:
• The upper field determines whether the CDCSS Encoder modulates the RF Generator,
or is output through AUDIO OUT.
• The lower field sets the amplitude (including Off).
Audio out coupling selects ac or dc coupling of the encoder to the AUDIO OUT
connector when the upper
Operating Considerations
The CDCSS encoder creates data streams using squarewaves. For optimum
waveform quality, set this field to
This is especially beneficial at low data rates.
This field defines the number of data streams output each time
This function works only when the
This field defines the 3-digit octal code used to identify the radio being accessed.
This field specifies how fast the data stream is output in bits-per-second.
This setting is also used to determine the Turn Off Code frequency
(TOC frequency Hz = Data Rate in bps). Example: 1000 bps = 1 kHz
Operating Considerations
This field is also used by the CDCSS Signaling Decoder screen to approximate
the data rate for the signal being decoded.
Chapter 10, Signaling Encoder (AF Generator 2)
field is set to
AFGen2 To
when using the AUDIO OUT connector.
DC
field is set to
Send Mode
CDCSS Encoder
.
Audio Out
is selected.
Send
.
Burst
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