HP 8904A - Page 158

362 HP 8904A Option 001 Enhancements
Defining the Hop RAM Address Settings
- f7 Hop RAM Address - Hop RAM addresses are used to store
frequency, phase, and amplitude settings. These settings can then be
arranged as a sequence to create the desired signal.
To select a Hop
RAM address, press the fl key and then enter the desired address
number. The
after the - fl key is pressed.
Fiequency, Phase, and Amplitude Settings - These parameters are
entered by pressing the assoaated
SIGNAL key and entering the
numeric value and terminator.
keys caralso be used to select the Hop RAM address
Specifying the Output and Editing hrmats
- f7 Seq Edit Base - The sequence edit base determines the number
system (hexadecimal, octal, or binary) used when displaying and
editing the sequence. Press
fl to select the edit function, and then
press it again to alter the efibase.
f2 - Seq Output Base -
The sequence output base determines how the
sequence data
will be interpreted. The two number systems available
are hexadecimal and binary.
In the hexadecimal mode, each number in the sequence corresponds
to one of the
16 Hop RAM addresses. All 16 addresses of the Hop
RAM can be used, limiting the maximum sequence length to 750
four-bit characters.
In the binary mode, each bit in the sequence is interpreted as a binary
number that corresponds to either address
0 or 1 of the Hop RAM.
Only two signal states can be used in this mode, but the maximum
sequence length is increased to
3000 bits.
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