Anritsu ML2437A - FAST ON;OFF Command; Using Buffered Requests

Procedures Optimizing Readings
ML2437A/38A OM/PM PN: 10585-00001 Rev. P 6-21
FAST ON/OFF command
Using the FAST command limits the types of measurements that can be taken. As some
processes are turned off, higher measurement speeds can be achieved. FAST will not operate
when sent via RS232. When THE FAST ON command is selected, the readout display is also
turned OFF.
C code example:
/* send fast mode ON*/
Send(0, 13, “FAST ON”, 7L, NLend);
/* Setup the power meter into talk addressed. In this mode*/
/* we can read from power meter without readdressing each */
/* time. */
Receivesetup(0,13);
/* Now read 10 readings */
for (loop = 0; loop < 10; loop++)
{
RcvRespMsg(0,buffer,STOPend); }
The 0.1 % settling on –30 dBm power level results were not improved because of the time
needed to settle to 0.1 % at –30 dBm.
Using Buffered Requests
Using the buffered Output channel ON command, even faster measurement speeds can be
achieved. By using the ON command instead of the O command x number of times, extra
processing is removed, resulting in improved speed.
Note
Using FAST mode only increases speed when asking for one measurement at a
time, using the ‘Receive’ command.
Table 6-7. Power Levels and Reading per Second
Settling (%) Power Level (dBm) Readings/s
0.1 0 150
0.1 –30 150
10.0 0 610
10.0 –30 250
Note
Using FAST mode here will not increase the speed as this mode only works when
asking for one measurement at a time (i.e., the ‘O’ command only.)