Read:marker:rdelta, Read:marker:rratio, Read:marker:rdelta? -51 – Boonton 4540 Peak Power Meter User Manual User Manual
Page 185: Read:marker:rratio? -51, Boonton 4540 series rf power meter, Remote operation

Boonton 4540 Series RF Power Meter
Remote Operation
5-51
READ:MARKer:RDELTa?
Description:
For the specified channel return the difference between MK2 and MK1. The units will be the
same as marker units.
Syntax:
READ[1|2]:MARKer:RDELTa?
Returns:
CC, (MK2-MK1)
Where CC is the measurement condition code.
Valid Modes:
All
READ:MARKer:RRATio?
Description:
For the specified channel return the ratio of MK2 to MK1. The units will be dB for logarithmic
units or percent for linear units..
Syntax:
READ[1|2]:MARKer:RRATio?
Returns:
CC, MK2/MK1
Where CC is the measurement condition code.
Valid Modes:
All