HP ESA-E Series Programmer's Manual page 203

ASCii - Amplitude values are in ASCII, in amplitude units,
separated by commas.
INTeger, 32 - Binary 32-bit integer values in internal units (mdBm)
REAL, 32 (or 64) - Binary 32-bit, or 64-bit, real values in amplitude
units.
Factory Preset
and *RST:
ASCii
Chapter 5
Language Reference
FORMat Subsystem
5-49