Keysight E4428C ESG RF Programming Manual page 357

Table 6-10 PRAM Byte Patterns and Bit Positions
Bit Function
Bit Position 7
Bit Pattern 1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
Viewing the PRAM Waveform
After the waveform data is written to PRAM, the data pattern can be viewed using an oscilloscope.
There is approximately a 12–symbol delay between a state change in the burst bit and the
corresponding effect at the RF out. This delay varies with symbol rate and filter settings, and
requires compensation to advance the burst bit in the downloaded PRAM file.
Keysight Signal Generators Programming Guide
6 5 4 3 2 1
1 0 1 0 1
1 0 1 0 1
1 0 1 0 0
1 0 1 0 0
0 0 1 0 1
0 0 1 0 0
0 0 1 0 0
1 0 1 0 1
1 0 1 0 1
1 0 1 0 0
1 0 1 0 0
0 0 1 0 1
0 0 1 0 1
0 0 1 0 0
0 0 1 0 0
Pattern RAM (PRAM) Data Downloads (E4438C and E8267D)
Bit
Pattern
Decimal
Value
0 - - -
0 1 213
0 0 212
0 1 209
0 0 208
0 1 149
0 1 145
0 0 144
0 1 85
0 0 84
0 1 81
0 0 80
0 1 21
0 0 20
0 1 17
0 0 16
Creating and Downloading User–Data Files
349